Tracking your bets means recording, for every bet, the data that will let you re-read it later: date, sport, market, selection, odds taken, stake, result. Those columns yield the only metrics that mean anything — net profit, total staked, average odds, ROI. The strike rate taken on its own is not among them: it only becomes interpretable in relation to the odds the bets were placed at.
The essentials in a few seconds
Tracking your bets means keeping, for each of them, the data that will let you re-read it: the odds taken, the stake, the market, the result. Without those columns, a record boils down to a balance going up or down.
Three things a log makes possible that a bank statement does not:
- relating the result to the volume staked, not just to the final balance;
- tying every bet to the price it was taken at;
- separating what belongs to a run from what belongs to a trend.
A betting record is not a sequence of wins and losses. It is a sequence of decisions taken at different prices, and it is the price that makes the result interpretable.
Why the bookmaker's history is not enough
An operator's interface displays the balance, the open bets and the settled bets. It is not designed to compare periods, sports or markets with each other. The data exists, but no format lets you aggregate it.
There is a simpler reason on top of that: as soon as bets are spread across two or three accounts, the only place the complete record can exist is a table kept separately.
The data to record for every bet
One row per bet, eleven columns at most. The first nine are the foundation, the last two are optional but change the review a great deal.
- Date — of the bet, not of the settlement. It lets you rebuild a chronology.
- Sport — to isolate later what behaves differently from one discipline to another.
- Competition — different levels of competition have neither the same liquidity nor the same margins.
- Market — winner, total goals, handicap. Two markets on the same match are in no way comparable.
- Selection — the precise outcome the bet is placed on.
- Odds taken — the odds at the moment of confirmation, not the ones displayed before or after.
- Stake — the sum committed to that bet.
- Result — won, lost, voided or refunded.
- Profit / loss — the net result of the bet, negative when it loses.
- Closing odds (optional) — the odds on the same selection just before kickoff.
- Notes (optional) — the reason for the bet, in one sentence, written before the result is known.
A €10.00 bet on a selection priced at 2.20, lost.
Odds taken: 2.20 · Stake: €10.00 · Result: lost · Profit / loss: −€10.00.
The same bet won would have given: return €22.00, profit / loss +€12.00.
The metrics these columns yield
No metric needs anything beyond the columns above. That is precisely why they have to be recorded at the moment of the bet.
- Number of bets — the denominator of nearly everything else.
- Total staked — the sum of every stake, including those on winning bets.
- Net profit — the sum of the profit / loss column. It is the only figure that describes what actually happened to the balance.
- Strike rate — the share of bets won. Useful, but never alone: see below.
- Average odds — the mean of the odds taken. It is the figure that makes the strike rate readable.
- ROI — a metric derived from net profit and total staked, covered in detail on a dedicated page.
- Runs — the longest sequence of winning bets and the longest sequence of losing bets.
- Closing line value — the gap between the odds taken and the closing odds.
"The higher my strike rate, the better my performance."
A strike rate only reads in relation to the prices the decisions were taken at. On its own it does not say whether a run of bets made or cost money — and it can rank two records in the opposite order to their net profit.
The ROI calculation, the break-even point by odds, and the comparison of two records with the same strike rate are covered in detail on their dedicated page.
Calculate and interpret your ROI →
Runs, volume and what tracking does not prove
A long losing run is not an anomaly: it is a normal property of a sequence of bets, and it gets longer the longer the odds. At odds around 2.50, six or seven losing bets in a row is nothing exceptional.
The "runs" column therefore serves to put a record in context, never to judge it. The same reasoning applies to the number of bets: over a few dozen rows, most of the variation observed is still attributable to luck, and rigorous tracking does not turn that uncertainty into a conclusion.
A positive ROI over thirty bets does not demonstrate that a method works, and a negative ROI does not demonstrate that it fails.
Closing line value: measuring the price, not the result
Every metric above depends on what happened on the pitch. Closing line value is the only one that does not. It compares the odds taken with the odds on the same selection just before kickoff, once the market has absorbed all the available information.
Taking a selection at 2.20 and watching it close at 2.00 means having obtained a better price than the market's final one — whether the bet then wins or loses. Information about the decision, not about its outcome.
How closing line value is calculated and read →
What tracking allows — and what it does not
Three levels not to be confused.
- What it lets you do — rebuild a complete record, isolate a sport or a market, measure an ROI, spot a run.
- What it lets you estimate — the quality of the prices obtained over time, through comparison with the closing odds.
- What it never lets you conclude — that a method is profitable, that a past result will repeat, or that a positive record predicts anything at all.
A spreadsheet is enough for everything above. OddScore is looking at an export and tracking tool (CSV, spreadsheet) to bring these columns into the platform, with no timeline announced at this stage.
Measuring assumes you have first set what you are committing. The budget and the size of the stakes are decided before the first bet, not when reviewing the record.
Set a budget before you start measuring →
Responsible gambling. Sports betting carries a risk of financial loss and presents, according to the Autorité nationale des jeux, the highest individual risk of problem gambling among regulated gambling activities. Keeping a log does not reduce that risk and makes no bet safer. Set a budget before you play, do not try to win back a loss and use the limit-setting or self-exclusion tools available. Learn more about responsible gambling.
Dig into the market
Odds movements are only part of the story. Here are the next topics to read.
Sports betting for beginners: understand before you start
The full path, from the first stake to tracking your bets.
See the guideROI and yield: calculation and interpretation
The full calculation, the break-even threshold by odds, and its limits.
Understand ROIHow sports betting works
Stake, odds, potential payout: the basic mechanics, without the jargon.
See the basicsSingle bet or accumulator
Why an accumulator cannot be reviewed like a single in a record.
Compare the formatsWhat budget for betting
Deciding the amount committed before starting to measure it.
See the budgetBankroll management
What the size of the stakes changes when reading a record.
Understand bankrollClosing line value
Comparing the odds you took with the closing odds, independently of the result.
Understand CLVThe most common beginner mistakes
The reflexes that distort a reading of results the most.
See the mistakesFrequently asked questions
Which data should you record for every bet?
At minimum: the date, the sport, the competition, the market, the selection, the odds taken, the stake, the result and the profit or loss. The closing odds and a free note on the reasoning are optional but very useful when reviewing.
Why is the strike rate not enough?
Because it counts the bets won without looking at the price they were taken at. A record at 50% success on odds of 1.50 and one at 40% on odds of 2.50 do not rank in the order those percentages suggest.
Where can you calculate and interpret the ROI from your tracking?
The ROI calculation and how to read it are covered on a dedicated page about profitability. This page focuses on the data you need to record to calculate it correctly.
How many bets does it take for a log to be readable?
No threshold makes a record conclusive. Over a few dozen bets, most of the variation observed is still attributable to luck, and that does not change abruptly at any particular number.
Does a losing run mean the method is bad?
Not necessarily. Long runs appear naturally in any sequence of bets, especially at long odds. A run is a fact to note, not a diagnosis.
Should you record the closing odds?
It is optional, but it is the only figure in the table that describes the quality of the price obtained independently of the result of the match. Comparing the odds you took with the closing odds is what is called closing line value.
Is a spreadsheet enough to track your bets?
Yes. A spreadsheet with one row per bet and the columns listed on this page lets you calculate every metric mentioned here, with no dedicated tool.