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Adam Olszanski

Tipster dossier — settled-bet performance through 2026-07-14 20:15 UTC

Verdict
STRUCTURALLY LOSING
Calibration is negative: actual win rate 24.1% trails market-implied 32.3% by -8.2pp — picks have negative skill relative to fair odds. Recent 30d (ROI -21.1%) is materially better than the prior 60d (-52.2%) — trending up, but expect mean-reversion. Bayesian-shrunk ROI (regressed toward -13% population baseline by sample size) is -28.3% — a more honest expectation than the raw -33.7%.
Since last weekly snapshot: ROI: -16.0% (-17.7% → -33.7%) · Shrunk ROI: -11.5% (-16.8% → -28.3%)

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 Bets
141
Wins
34
Win Rate
24.1%
Avg Odds
4.51
Total P/L ($1 stakes)
$-47.52
ROI
-33.7%
Bayesian-shrunk ROI
-28.3%
Implied Win % (1/odds)
32.3%
Calibration Gap
-8.2pp

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.

SubsetNP/LROI
Full record141$-47.52-33.7%
Minus best 1 bet140$-56.02-40.0%
Minus best 2 bets139$-62.52-45.0%
Minus best 5 bets136$-76.33-56.1%

If stripping the top 2 wins materially changes the ROI, the headline number is being held up by a couple of fortunate longshots — not stable skill.

Recent trend

Last 30d ROI
-21.1%
Prior 60d ROI
-52.2%

Monthly performance

MonthNWin %Avg OddsP/LROI
2026-045722.8%4.46$-29.77-52.2%
2026-056830.9%4.04$-1.75-2.6%
2026-06160.0%6.71$-16.00-100.0%

By odds bracket

OddsNWin %P/LROI
<2.02161.9%+$5.97+28.4%
2.0-3.03935.9%$-8.59-22.0%
3.0-5.0468.7%$-31.90-69.3%
5.0-8.01910.5%$-6.50-34.2%
8.0-15119.1%$-1.50-13.6%
15+50.0%$-5.00-100.0%

By pre-race rank

Pre-race RankNWin %P/LROI
Rank 1 (fav)1931.6%$-3.20-16.8%
Rank 2137.7%$-9.60-73.8%
Rank 390.0%$-9.00-100.0%
Rank 4-5333.3%+$6.50+216.7%
Rank 6+20.0%$-2.00-100.0%

Based on 46 of 141 tips where pre-race rank was captured live (data started May 17, 2026).

Strategy Zone (rank ≤ 3 AND odds ≥ 5)

SubsetNWin %P/LROI
In Zone (rank ≤ 3 AND odds ≥ 5)110.0%$-11.00-100.0%
Outside Zone3522.9%$-6.30-18.0%

By source

SourceNWin %P/LROI
racing_com14124.1%$-47.52-33.7%

By venue

Top venues (by total P/L)

VenueNWin %P/LROI
southside pakenham4932.7%+$3.22+6.6%
bet365 seymour540.0%+$1.20+24.0%
moe1637.5%$-1.70-10.6%
caulfield922.2%$-5.40-60.0%
sportsbet sandown lakeside70.0%$-7.00-100.0%
mornington1520.0%$-7.10-47.3%
flemington90.0%$-9.00-100.0%
sale1618.8%$-9.25-57.8%

By day of week

DayNWin %P/LROI
Tue1637.5%+$0.05+0.3%
Wed70.0%$-7.00-100.0%
Thu2339.1%+$2.47+10.7%
Fri4623.9%$-10.54-22.9%
Sat2615.4%$-18.55-71.3%
Sun2317.4%$-13.95-60.7%

Place market

Live place-capture data: 6 settled, place rate 66.7%.

Hypothetical $1 place-bet P/L at captured Betfair BSP: +$1.30 (+21.7% ROI) on 6 bets.

Place data started May 17, 2026. Sample size small — treat directionally only.

Biggest wins

DateVenueSelectionOddsP/L
2026-05-22southside pakenhamLe Notre9.50+$8.50
2026-05-17saleFlying Mikki7.50+$6.50
2026-04-16southside pakenhamYes Yoshi1.90+$6.45
2026-05-15southside pakenhamAristonous5.00+$4.00
2026-04-17southside cranbourneBella Verona2.05+$3.36

Biggest losses

DateVenueSelectionOddsP/L
2026-04-17southside cranbourneViasain2.45$-3.00
2026-04-19saleGatwick2.00$-3.00
2026-04-24southside cranbourneGolden Spritz2.05$-3.00
2026-04-19saleKilliana1.65$-3.00
2026-04-17southside cranbournePosh Diamante2.60$-1.00
Generated 2026-07-14 20:15 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.