How to keep a game log in an online casino

Try one question — no Googling, no listings, no excuses. How much money have you won or lost at an online casino in the last twelve months? Plus or minus a thousand crowns. If the number doesn't hit you like a gun, you're in the same shoes as 9 out of 10 players — you just don't know it. The head remembers the € from the Saturday in April that fell on the machine, but it muffles a dozen medium-sized losses of €750 - € that stretched quietly throughout the fall and winter. After a year, you feel that you are "slightly profitable" or "at least at break even". Real numbers tend to be completely different.

The game log fills this gap. It's a simple table that you enter five data in one minute after each game session. After three months, you have 60-150 records and from them you calculate what your head doesn't tell you: the average loss per session, the best and worst week, which casino is doing well for you, when you play the most money. After a year, you have an almost complete picture of your playing — no illusions, no selective memory, just hard numbers.

In this guide, I will guide you step by step through the entire system: what to write in the diary, how to prepare a template in Excel or on paper, how to evaluate individual entries after a week, month and year, and most importantly — what to do with what the diary shows you after a few months. The guide is written for the guy who plays between €1,250 and €1 a month and wants to be in control — not for the professional bettor or the mathematician.

Why a game journal works against errors in the head

The human head is not an objective computer. It remembers wins much better than losses — a win releases dopamine in the brain, a loss hurts only briefly and then you suppress it. After half a year of playing, your head tells you that you are "perhaps slightly in profit", even though in reality you are €1 in the red. This distortion cannot be turned off by force of will. However, it can be circumvented — by keeping the results on paper or in a table, where your head cannot distort the numbers.

The game log has three specific psychological functions that help even experienced guys keep their cool:

1. It fights against confirmation bias. Our memory remembers what confirms what we already believe. If we believe that "my card is good" or "the machine will always ring", this impression wins. The diary does not play with emotions — it captures every session equally, win and loss, and shows you the ratio of black and white. A detailed analysis of how the player's brain deceives can be found in a separate article on cognitive distortions in gaming .
2. It slows down the pursuit of losses. The most dangerous moment of playing is when you are in the red and want to "get back into the plus". At that moment, it seems to you that one more small bet is enough and everything will be OK. The diary will remind you of the hard numbers: this month you are already € in the red, the budget was €, the next bet won't fix anything. The feeling of "catching up" is confronted with the number "no, you're in the red, time to stop".
3. It exposes the sunk cost fallacy. After three hours of playing, your head whispers: "I've been here for so long, I can't leave now". The diary will show you that the average 3-hour session ends with a loss of €, not a profit. A rational decision to stay or leave can only be made with this number in hand.

These three traps are why even an intelligent man with a family and a mortgage can lose two months' pay in one month — without even realizing it while playing. A diary is basically an insurance policy against your own head. When you add to that knowledge of slot machine myths and you understand the casino's mathematical superiority in individual games , unlike 95% of players, you have real tools with which you can watch your money.

What to record: journal columns

Start with the minimum. Five columns is a level that can be maintained even by a person who sits behind the wheel for 10 hours a day and doesn't feel like doing any forms when he gets home. Only when you find that you can write quickly and stick to it, add more columns. For enthusiasts, there is also an extended version with 15 items, which will be used more by people with diplomas than by truck drivers.

Minimum journal — five columns

These five data are enough for basic analysis. After 50 — 100 log entries you will read: average session result, average duration, total loss or profit for the period and how often you play. For most guys, this is quite enough — not everyone needs data at the level of controlling in the company.

Optimal diary — nine columns

If you want to know more (and you will after a few months, because you'll be hooked), expand the diary by four columns: casino, type of game, bonus used and time played (start/end instead of a single number duration). It then looks like this:

An optimal diary will allow a deeper analysis: which casino is the most successful for you, which type of game is a loss for you, whether the bonuses actually help or rather harm (and there is a separate article about the most common mistakes players make with bonuses ), when do you play the most during the week and what is the difference between afternoon and evening. Enter the type of game via a short label such as "Slots/Apollo", "Slots/Pragmatic" or "Live Roulette" — so you can filter later. If you want to understand exactly what the RTP, paytable or volatility of a specific slot means, it will help you instructions on how to read the pay table of the machine .

Extended diary — for complete enthusiasts

More columns will be added for players who want to dig into the data. Even if you'll never use them all, two of them have real narrative value — the pre-session mood and the short note. Their combination over time will reveal that, for example, Friday sessions after a hard day at work are significantly more loss-making than Sunday afternoons.

• Highest win in a session — shows how often you catch a decent hit.
• Highest bet in the session — reveals whether you are raising when losing.
• Mood before the session (1 — 5, where 1= tired or irritable, 5= calm).
• Mood after the session (1 — 5).
• A short note — for example "wanted to catch a loss", "unscheduled session after midnight", "tried a new slot".
• Game provider — Apollo, Pragmatic, Synot, Kajot. After a while, you will see if you are not doing better with one provider. It describes which providers are behind the games in Ireland casinos overview of online casino game providers .

Template in Excel or Google spreadsheet

Open Excel or a spreadsheet in Google Sheets and write the column headings in the first row. These eleven are enough to get you started:

A1: Date | B1: Start | C1: End | D1: Duration (min) | E1: Casino | F1: Kind of game | G1: Deposit | H1: Selection | I1: Bonus | J1: Result | K1: Note

In column D (duration in minutes), write a formula that will calculate the duration by itself: =ROUNDDOWN((C2-B2)*24*60.0). Column J (result) also by formula: =H2-G2 (withdrawal minus deposit). Copy these two formulas to the entire column and they will be automatically calculated for each new record.

Under the table (preferably on a separate sheet labeled "Summary"), prepare automatic totals. Thanks to them, you can immediately see the overall picture after each recording, without manual counting:

• Overall result: =SUM(J:J)
• Number of sessions: =COUNT(A:A)-1
• Average result: =AVERAGE(J:J)
• Total deposit: =SUM(G:G)
• Total selection: =SUM(H:H)
• Realistically achieved return: =SUM(H:H)/SUM(G:G)*100 (in percent)
• Number of profitable sessions: =COUNTIF(J:J,">0")
• Percentage of profitable sessions: =COUNTIF(J:J,">0")/COUNT(J:J)*100

Practical tip: Color Excel on your screen so that losses are red and profits are green. You select column J, put "Conditional Formatting" → "Highlight Cell Rules" → "Less than 0" → red and vice versa for positive numbers. After a year of entries, the graph is clear at first glance: you see the months in green and the months in red, and you immediately know which periods broke with the budget.

Paper notebook — an honest start

If you don't feel like Excel or don't have access to a computer every day, a paper notebook is enough for the first 1-3 months. At work, in any store, you can buy a lined A5 notebook for a few crowns, a pencil for a few pennies, and you have the whole system. Principle:

• One line each day you play.
• The same five minimum columns (date, duration, deposit, withdrawal, result).
• At the end of the week, draw a total line with a thicker pencil or pen of a different color.
• At the end of the month, transfer the totals to the top of the following sheet — you have a monthly overview.
• On the back of the notebook, you keep a monthly overview for the whole year (one line per month).

After 3 months, the paper will start to limit you. You can't calculate the statistics manually, you can't filter by casino or type of game, and after half a year you have a pile of sheets that you don't know anymore. That's when people usually go to Excel and flip the historical records into it — it takes two Sunday evenings and it pays off. The borderline compromise is the Google Spreadsheet: it has all the benefits of Excel, runs for free, syncs between computer and phone, and data is available even from the company car via a phone app.

A sample month of a recreational player

To see what the journal looks like in practice, here's a sample of the month of a recreational gamer (let's call him Peter, a 47-year-old trucker). The budget is € per month and he plays 4-8 sessions, mainly weekends and afternoons after the shift:

What can be seen from the table:

• Monthly net result: loss of € 20 (12.5% ​​of planned budget €) — pretty decent discipline.
• Average session length: 1h 36min.
• Longest session: 3h 10min from 23 May and ended with a loss of € — that's a red flag in the diary, because even the budget for that session (€) was above the normal average.
• Best casino for Peter that month: Tipsport (net result -€20 for 3 sessions — reasonable, not extreme).
• Most volatile casino: Fortuna (net result +€10, but with big swings between one session +€ and another -€).
• Realistically achieved return per month: 5,625/6,250= 90% (against the theoretical return of machines 95 — 96%; the difference is short-term noise).

For Peter, the result is acceptable — he stays within the planned budget, the monthly loss of €20 is below the level he can afford. He sees the risk only in one session (May 23), which lasted over three hours. In June, he can therefore set a time limit of two hours per session — either through personal discipline or self-limiting limit in each casino .

The first 7 days with a journal: how to get started

The weakest link in the system is the beginning. Half the guys decide to keep a journal, fill in the first three entries, and then forget about it. To avoid this, stick to the seven steps for the first week. They are deliberately simple — a smaller journal that you keep rather than a perfect one that you abandon after ten days.

1. Day 1 — Tool preparation (15 minutes). Choose: Excel, Google Spreadsheet, or a paper notebook. Prepare a header with five minimum columns. Save the template so you have it close at hand — Excel on your desktop, Google Sheets as a bookmark on your phone, a notebook on your nightstand.
2. Day 1 — Retrospectives (30 minutes). View your casino account statement for the last month. There you can see all deposits and withdrawals. Write them down in the diary and backwards — you have a starting zero and immediately the first numbers. It will help you stay motivated.
3. Day 2 — 7: Record after each session. The rule is simple: no session without a write-up, no write-up postponed until tomorrow. You can complete it in one minute while you save your statement.
4. Day 3 — Mini-check (5 minutes). You will see if the first records are filled. If you missed something, you fill it in. If you forgot the diary, you can put it back in a visible place.
5. Day 7 — First total (10 minutes). On Sunday evening, you calculate the first week: how many sessions, how many deposits, how many withdrawals, the net result. This is the first real number you know. What follows is a feeling that probably only you know — either relief (because it's not that bad), or a real shock.
6. Day 7 — Decision. Based on the weekly total, decide: to continue with the same budget, reduce it, or include a break. Many players say that the first weekly total is the change itself — when they see in black and white how much they actually spent, they play significantly more sensibly the following week.
7. Day 7 — Plan for the next week. Write down in your diary: how many sessions I plan, what budget, which casinos and which types of games. This commitment to oneself tends to be much stronger than a vague resolution "I won't play so much anymore".

Practical tip: If the diary starts to bore you after a week, take one specific entry that you found interesting (longest session, biggest loss, biggest win) and in a note for the next entry, write what you would do differently with it. The journal then becomes something more than a column of numbers — it's a silent exercise in decision-making.

Weekly evaluation: 5 — 10 minutes on Sunday evening

On Sunday night (or any time at the end of the week when there's time), open your journal and look at the last seven days. You are looking for answers to five specific questions:

• How many sessions did you have per week?
• What is the weekly net result (total of column J)?
• What was the longest session and what was the result?
• Was there anything unplanned? Extra deposit, weekday play, late night play?
• What is the plan for the next week: how many sessions, what casinos, what budget?

The weekly evaluation has three specific effects. First: it keeps you constantly informed about the current situation — it won't get out of your head, as it used to be before the diary. The second: reveals weekly patterns (weekend escalation, afternoon gaming after work, Friday nights after payday). Third and most important: it allows for quick correction. If you spend 80% of your monthly budget in one week, you know it right away, and in the next three weeks you can either completely pause or radically reduce your bets.

Monthly evaluation: 15 — 20 minutes on the last Sunday

On the last Sunday of the month, you will take a more detailed look. Six questions you're looking for an answer to:

1. The total result of the month in crowns and as a percentage of the budget.
2. Breakdown by casino: where it works, where it doesn't. Sometimes you will be surprised that one particular casino is more unprofitable for you in the long term than others.
3. Division by type of game: slots versus live game, or sports betting.
4. The best and worst shows of the month: what happened to them? Was there a common feature? Tiredness, alcohol, family quarrel before playing?
5. Best and worst week: the difference between them. A large swing indicates that you are not spreading the budget evenly — you are accumulating sessions in certain waves.
6. Next month's plan: if the loss is higher than the planned budget, where to cut? If you are in green, is it an exception or a trend?

If, after three consecutive months, the monthly loss remains consistently higher than you accept, it's time to apply more firm brakes than just the journal — either self-limiting limits directly in the account, or consider temporarily enrolling in Register of excluded persons — the minimum duration of voluntary enrollment is 6 months.

Quarterly and annual evaluation

Every three months you look at the bigger picture — it's no longer about one session, but about a trend:

• Trend: Is the monthly loss increasing, decreasing or remaining stable month by month?
• Realistically achieved return: what percentage of deposits is returned to you on a long-term average? For automatic machines, it should be between 88 and 95% in the long plane. Below 80% indicates a very low return game or a long losing streak. Details about RTP are discussed in a separate article about RTP and volatility of slots and o real RTP Ireland slots .
• Average Session Duration: Rising or Falling? An extension above 2 — 3 hours can be a signal of hunting for losses.
• Weeks without playing: was it intentional (vacation, break) or accidental (there was just no time)? Are there any differences in results between them?
• Decision: continue with the same approach, reduce the budget, change the casino, the type of game or completely leave for a few months?

The annual evaluation (at the end of December or in January) is special — in addition to the trend and the overall result, two more things are meaningful here: first, whether it concerns you tax on online casino winnings (short answer: Ireland from licensed operators almost never, but the article also discusses the nuances); the second is whether it is now a good time to consider whether the type of casino where you play fits your profile at all. That's what he's dedicated to instructions on how to choose an online casino according to the type of player .

What the diary will reveal to you after a year

Players who keep a journal for an entire year consistently report five recurring findings. Some are annoying, some are useful, but they all have one thing in common — you couldn't get to them without a journal:

1. The real loss is higher than you let on. Memory lies in 7 out of 10 cases. If you thought you were losing "a few hundred a month", after a year you will find that it is 37,500 — € 4 — so a proper trip or new summer tires for the whole car.
2. The biggest loss rarely comes with the biggest stake. It is often the other way around — a few medium sessions of €750 — add up to the bulk of the annual loss, while one crash session for € looks like a minority in the annual overview.
3. There is a day of the week that is more unprofitable for you. They are usually Fridays or Sundays, sometimes Mondays. It's related to fatigue, alcohol, or feeling more relaxed after getting paid. Without a journal, you will never notice this pattern.
4. Bonuses don't always help. When looking at the overall result of sessions with a bonus versus without a bonus, it often turns out that the bonuses tempt you to make higher deposits and longer sessions, which worsens the overall result. If you've lost more money than the average player on welcome bonuses or cashback, read where the most common mistakes are made in article about the most common mistakes players make with bonuses .
5. One casino you lose more than others. Not because it "was set", but because you play other games there, you have worse discipline or you are attracted by a specific bonus that makes you deposit more. With the same budget, the difference between the "best" and "worst" casino for a typical player is 5,000 — €1 per year.

Together, these findings will allow you to make completely different decisions than before the diary. You start avoiding Friday sessions, switch to one or two preferred casinos, ignore bonuses that lead you to higher stakes, and overall play less and for less time. The annual loss is typically reduced by 20 — 50% — and that's a big enough difference that you and your wife can decide what you'd rather use the money for.

Useful Excel Journal Formulas

The formulas in the table save time and make the diary a real tool. Copy them and they will automatically recalculate after each new entry. The columns are assumed to be laid out as described in the template section (J= Result, G= Deposit, H= Withdrawal, E= Casino, F= Game Type, D= Duration):

If some concepts do not suit you (return, volatility, margin, spin), reach for a brief glossary of online casino terms — explains the terminology without academic ballast, so that it suits you even during a break in work.

The most common mistakes when keeping a diary

A diary alone is not enough — it depends on how you keep it. Here are the mistakes players repeatedly make in the first few months that will cause the system to fall apart:

• Enrollment postponed to the next day. "I'll write it down tomorrow morning" means 60% of the time you won't write it down at all. The rule is ironclad: you fill in the registration immediately after the session ends, before the casino site closes.
• Recording only losses. Without winnings, the diary looks scary and you lose motivation. The goal is the full picture, not fear. Record the €30 win with the same discipline as the loss.
• Rounding down. The loss was €, you write "€" because "it's easier that way". After a year, you have €1 less recorded losses in the diary than there actually were. Write down exactly — a crown is a crown.
• No regular evaluation. A diary without a weekly and monthly total is just a storehouse of numbers. The real value comes only in the analysis — so set aside one Sunday evening a month for 20 minutes with a journal in hand.
• Hidden session. "That one little one didn't belong in the diary" — this is the clearest signal that something is wrong. If you want to hide something from yourself, this is exactly what should be most clearly visible in the diary.
• Entry without casino and game type. After half a year, you need to know where and in what kind of game you are doing well. Without these columns, the journal is just a balance sheet, not a diagnostic tool.

Red flags that the diary reveals

After 2-3 months of journaling, notice if any of these patterns emerge. None of these are a problem by themselves — but the combination of them is a serious sign that the game is starting to deviate from the normal recreational level:

• Session durations are increasing. If the sessions were 30-60 minutes in the beginning and after 3 months you are averaging 90-120 minutes, it may be a starting problem.
• Session frequency is increasing. From 1 — 2 sessions a week become 4 — 5, later daily playing. This is one of the clearest signals.
• Deposits are escalating. The original € plan changes to €, then to €, and finally to top-up deposits during the session ("just another €30 to catch up").
• Playing at unusual times. Shifting from afternoon to late night, morning sessions before going to work, playing during lunch at work or in the car before a shift.
• Losing more than 30% of the budget in one month. Planned €, lost €. It happens occasionally — but if it's a repeating pattern two — three months in a row, it's a warning.
• Frequent "catch up" in notes. If you often write in your notes "I wanted to catch up on a loss", "I came back after a loss" or "I tried one more deposit", then you should know that chasing losses is the main harbinger of problem gambling.
• Playing after an argument or in a bad mood. If the pre-session mood rises above ⅓ of the items at the level of "1 — irritated, tired", you are mainly playing when you need to clear your head — and this is a step in the wrong direction.

If you see more than 2 — 3 red flags: It's not a reason to panic, but it's time to apply harder brakes than just a log. Ireland online casinos allow you to set a daily or weekly deposit, bet and playing time limit in each account. For more serious signals, consider writing to Register of excluded persons via the gambling regulator — voluntary registration lasts at least 6 months or can be permanent. Details on how to set limits can be found in guidance on self-limiting limits in Ireland casinos . Attention — entry in the register can indirectly affect i assessment of the mortgage application , therefore read this context before permanent registration.

Related topics and further reading

Money management and gameplay control:

• Budget management in an online casino — instructions on how to divide money and not stay in the red.
• Self limiting limits in Ireland casinos — daily, weekly and monthly deposit and bet limits.
• Register of excluded persons — how to register and what are the options.
• Register and mortgage — how registration in the register will affect the loan application.
• Responsible gaming — policies, limits and help Ireland.

Gaming Psychology and Mistakes:

• Cognitive distortions in gaming — why the brain plays worse than the computer.
• Myths about slot machines — what players think and how it works in reality.
• The most common mistakes players make with bonuses — in which they lose the win.

Game and Math:

• Mathematical advantage of the casino — dominance table for all games.
• RTP and volatility of slots — how to read numbers before playing.
• Real RTP Ireland slots — Cajot, Apollo, Synot, and Pragmatic in numbers.
• How to read a slot machine paytable — symbol by symbol.
• Online casino game providers — who is behind slots and live casino.
• Glossary of online casino terms — RTP, return, spin, margin and dozens more.

Choice of casino and loyalty programs:

• How to choose an online casino according to the type of player — different criteria for different types.
• Loyalty programs and VIP clubs — when they have a fair value.
• Tax on online casino winnings — when to pay and when not to.

❓ Game Log FAQ

Budget management Self-limiting limits