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Mitch Lewis
Tipster dossier — settled-bet performance through 2026-06-02 21:16 UTC
Verdict
ROI MISLEADING
Small sample (2 bets) — anything below ~100 settled bets means CIs are wide enough to be near-useless. Calibration is positive: actual win rate 50.0% beats market-implied 32.3% by +17.7pp — picks have measurable skill versus fair odds. Bayesian-shrunk ROI (regressed toward -13% population baseline by sample size) is -10.1% — a more honest expectation than the raw +62.5%.
Charts
Cumulative P/L (theoretical $1 stakes)
A straight upward line = consistent profitability. Step-jumps = single fortunate bets carrying the curve.
Monthly ROI %
Top 10 P/L outliers
ROI by odds bracket
Calibration — actual vs implied win rate by odds
Blue bars under orange = picks lose to market expectations.
ROI by day of week
At a glance
Total P/L ($1 stakes)
+$1.25
Bayesian-shrunk ROI
-10.1%
Implied Win % (1/odds)
32.3%
What's driving the ROI?
Strip away the top winning bets and see how the picture changes — a stable record degrades gracefully,
a lucky record collapses.
(insufficient data)
Recent trend
(insufficient sample to compare recent vs prior)
Monthly performance
| Month | N | Win % | Avg Odds | P/L | ROI |
|---|
| 2026-03 | 2 | 50.0% | 3.10 | +$1.25 | +62.5% |
By odds bracket
| Odds | N | Win % | P/L | ROI |
|---|
| 2.0-3.0 | 1 | 0.0% | $-1.00 | -100.0% |
| 3.0-5.0 | 1 | 100.0% | +$2.25 | +225.0% |
By pre-race rank
No pre-race rank data yet for this tipster.
Strategy Zone (rank ≤ 3 AND odds ≥ 5)
No rank data yet.
By source
(no source data)
By venue
(no venue data with sufficient samples)
By day of week
(no day-of-week data)
Place market
No place outcomes captured yet for this tipster.
Biggest wins
| Date | Venue | Selection | Odds | P/L |
| 2026-03-04 | grafton | 5. Poseidons Son | 3.25 | +$2.25 |
Biggest losses
| Date | Venue | Selection | Odds | P/L |
| 2026-03-04 | grafton | 1. Jade Trees | 2.96 | $-1.00 |
Generated 2026-06-02 21:16 UTC. Stats based on theoretical $1 BACK stakes settled on Betfair. Place data uses captured Betfair Starting Price.
ROI = total P/L divided by total bets — high variance at small samples.