You cannot manage what you do not measure. Memory is a terrible ledger — it remembers the heroic winner and forgets the quiet grind of losses.
Minimum fields per bet
Log at least:
| Field | Why | |-------|-----| | Fixture + kickoff | Context and later review | | Market + selection | Pattern detection (1X2 vs O/U, etc.) | | Odds taken | Price quality | | Stake (units) | Bankroll impact | | Model / edge at time of bet | Process quality, not just outcome | | Result + P/L | Truth | | Notes (optional) | Injuries, tilt flags, “supported club” bias |
Thirty seconds after placing a bet beats a weekend of reconstruction.
Metrics that matter
- ROI / yield — profit divided by total staked (or turnover definition you pick and keep consistent).
- Drawdown — peak-to-trough bankroll fall.
- Average odds — are you only winning on short prices?
- Breakdown by market and league — where the process actually works.
- Win rate — secondary; a high win rate on short odds can still lose money.
Sample size: when to trust the curve
- 20 bets: noise.
- 100 bets: early signal, still fragile.
- 500+ bets: process verdicts become meaningful.
A −5% ROI over 20 bets is often variance. The same over 500 bets is a reason to change the process.
Finding your own biases
Tracking surfaces uncomfortable patterns:
- Losing more when your club plays
- Over-staking evening derbies
- Soft leagues where you feel “local knowledge” but results disagree
That is the point. Emotion hides in the unlogged.
SupaBola link
Use /analytics as the dashboard for ROI, filters, and drawdown once activity exists. Compare the price you took against the view on /predictions so you are reviewing decision quality, not only green/red outcomes.
Key takeaways
- Track every bet with stake, odds, market, and edge-at-time.
- ROI and drawdown beat vibes.
- Do not rewrite your system after a small sample.
- Use product analytics to replace fragile spreadsheets when you can.
- Bias detection is a feature of logging, not a character attack.
For educational and informational purposes only. Gambling involves risk. Please bet responsibly.