Shane Jackson

Tipster dossier — settled-bet performance through 2026-05-30 17:16 UTC

Verdict

STRUCTURALLY LOSING

Small sample (8 bets) — anything below ~100 settled bets means CIs are wide enough to be near-useless. Calibration is negative: actual win rate 12.5% trails market-implied 40.3% by -27.8pp — picks have negative skill relative to fair odds.

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

Wins

Win Rate

12.5%

Avg Odds

3.58

Total P/L ($1 stakes)

$-6.40

ROI

-80.0%

Implied Win % (1/odds)

40.3%

Calibration Gap

-27.8pp

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
2026-05	8	12.5%	3.58	$-6.40	-80.0%

By odds bracket

Odds	N	Win %	P/L	ROI
<2.0	2	50.0%	$-0.40	-20.0%
2.0-3.0	4	0.0%	$-4.00	-100.0%
5.0-8.0	1	0.0%	$-1.00	-100.0%
8.0-15	1	0.0%	$-1.00	-100.0%

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

Source	N	Win %	P/L	ROI
racing_com	8	12.5%	$-6.40	-80.0%

By venue

Top venues (by total P/L)

Venue	N	Win %	P/L	ROI
warrnambool	8	12.5%	$-6.40	-80.0%

By day of week

Day	N	Win %	P/L	ROI
Tue	3	33.3%	$-1.40	-46.7%
Wed	2	0.0%	$-2.00	-100.0%
Thu	3	0.0%	$-3.00	-100.0%

Place market

No place outcomes captured yet for this tipster.

Biggest wins

Date	Venue	Selection	Odds	P/L
2026-05-05	warrnambool	Stern Idol	1.60	+$0.60

Biggest losses

Date	Venue	Selection	Odds	P/L
2026-05-06	warrnambool	Point Nepean	2.20	$-1.00
2026-05-07	warrnambool	Raise The Note	11.00	$-1.00
2026-05-05	warrnambool	Ongatiti	2.50	$-1.00
2026-05-05	warrnambool	Mr Waterville	5.00	$-1.00
2026-05-07	warrnambool	Golden Crusader	1.75	$-1.00

Generated 2026-05-30 17:16 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.