John-Z's Overlay · Trifecta ATM

Sun, May 3

Race 8

Md Sp Wt

Post: 4:35 · 1.06m · Dirt · $68K purse · 6 runners

New — Ask Claude Opus about this race Why a horse rates the way it does, what the trifecta ticket means, where the public might be wrong.

Pace shape

6 runners

Lone speed

One pure-E runner, no EP pressers — likely uncontested early lead, favors the front-runner.

1 E — pure early 1 P — presser 2 S — closer 2 Unclassified

Projected speed

2 of 6 runners have no BRIS run-style code (often first-time starters); narrative may understate the true pace.

Trifecta shape

Competitive

Model has no clear edge — every ticket structure is steeply negative-EV. Skip, or treat as an entertainment bet and size accordingly.

1×3×3 key (top pick) on posts 1, 5, 6, 7

The model's most-likely-to-cash structure (informational — not a bet recommendation).

Cost

$6.00

6 combos

Hit prob

7.1%

simulated

Typical payout if hit

$10.44

mean $14.51

Expected ROI

-82.9%

net $-4.98

  • · Most-likely-to-cash structure: 1×3×3 key (top pick) on posts [1, 5, 6, 7] — hits 7.1% of simulated runs
  • · At $6 stake, a typical cash pays ≈ $10 (mean $15; trifecta payoffs are heavy-tailed). Estimated from the public pool, validated against archive payoffs.
  • · Multiple legitimate contenders — model is less concentrated.

A Top picks

1, 5

B Contenders

6, 7, 3

C Value-edge longshots

4

Other ticket structures (5)
Ticket Cost Hit prob Typical payout ROI
3-horse box $6.00 7.9% $10.13 -88%
1×4×4 key (top pick) $12.00 13.3% $10.72 -79%
2×4×4 part wheel $12.00 13.7% $10.44 -84%
1×5×5 key (top pick) $20.00 20.1% $12.43 -72%
A key, B in 2nd, A+B+C in 3rd $24.00 23.2% $21.88 -64%

Hit prob is the model's per-race PL distribution. "Typical payout" is the median cash, weighted by the public pool's odds (not the model's own picks) and calibrated to actual historical trifecta payoffs — so it reflects what the tote really pays, not the model's disagreement. Walk-forward backtests show pari-mutuel takeout (~16-26%) is too steep to consistently clear at this data scale — these are tipsheet outputs, not bet recommendations.

Top-4 ITM concentration: 70% · Top 4 cover 2.11 of the 3.00 expected ITM finishers

Field

Click any horse name for the per-horse breakdown (last-10-races chart, SHAP feature contributions, full PP table).

PP Horse ML Pred Close Pred Fig Win ITM% Edge
1ATAP THIS WAY2.0-11.9-174.520%57%-28%
5ATREASURED TIMES1.8-11.8-171.319%54%-37%
6BPBON VIVANT5.0-15.8-170.218%53%+10%
7BSSLICEAWAY8.0-112-170.415%47%+18%
3BEJUSTIFIED GIFT8.0-110-169.115%47%+18%
4CSWHIRLAWAR20-132-169.313%42%+30%
2SCRPFIFTYSHADESOFPINK6.0-1

Sort the table by clicking column headers. Edge = our predicted ITM% minus the public-implied ITM% (live odds when present, ML otherwise); green ▲ ≥ +5pp, red ▼ ≤ −5pp. See How to Use for the math.

Ask Claude Opus

Questions about the model's predictions for Race 8 · Sun, May 3 · Gulfstream Park. Powered by Claude Opus 4.7.

Ask anything about the field, the trifecta ticket, or why the model rates a horse the way it does.

Limited to 30 questions per day per visitor. Answers are model-generated and may be incorrect — not betting advice.