Ask a casual gambler: "How much are you up this year?"
They will say: "Oh, I'm about even."
They are lying.
They just don't remember the losses.
The Mirror of Truth
A spreadsheet is a mirror. It shows you the ugly truth about your betting.
- It tells you that you lose 80% of your Football bets.
- It tells you that you are a genius at Cricket.
- It tells you that you lose money on Tuesdays.
Without this data, you are blind.

What to Track (The Columns)
Create a Google Sheet with these columns:
- Date: When was the bet?
- Sport: Cricket, Football, Tennis.
- Selection: India to Win.
- Odds: 1.90.
- Stake: 1000.
- Result: Won/Lost.
- Profit/Loss: +900 or -1000.
- Notes: "Bad mood", "Raining", "Good value".
The Analysis
After 100 bets, filter your sheet.
- Filter by Sport: Maybe you should stop betting on Football entirely?
- Filter by Odds: Maybe you lose every time you bet on long shots (5.0+)?
Conclusion
Amateurs guess. Professionals know.
Start your spreadsheet today. It is the most profitable tool you will ever own.
To understand the metrics in your sheet, read: Understanding ROI & Yield.




