John-Z's Overlay · Trifecta ATM

Sun, May 24

Race 4

Md Sp Wt

Post: 2:14 · 1m · Dirt · $92K purse · 9 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

9 runners

Contested pace

2 early types — pace should be honest but not crazy. No strong style bias.

2 EP — early/presser 2 P — presser 4 S — closer 1 Unclassified

Projected speed

1 of 9 runners have no BRIS run-style code (often first-time starters); narrative may understate the true pace.

Trifecta shape

Wide open

Lottery shape — low hit rates, larger payouts when they cash. Entertainment-only; the model is not confident in any structure.

1×3×3 key (top pick) on posts 1, 2, 9, 7

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

Cost

$6.00

6 combos

Hit prob

5.7%

simulated

Typical payout if hit

$40.69

mean $46.07

Expected ROI

-56.6%

net $-3.40

  • · Most-likely-to-cash structure: 1×3×3 key (top pick) on posts [1, 2, 9, 7] — hits 5.6% of simulated runs
  • · At $6 stake, a typical cash pays ≈ $41 (mean $46; trifecta payoffs are heavy-tailed). Estimated from the public pool, validated against archive payoffs.
  • · Wide-open shape — anyone could hit; longshots have room.

A Top picks

1

B Contenders

2, 9, 7

C Value-edge longshots

8

Other ticket structures (5)
Ticket Cost Hit prob Typical payout ROI
3-horse box $6.00 5.3% $41.07 -60%
A key, B in 2nd, A+B+C in 3rd $9.00 7.9% $40.69 -49%
1×4×4 key (top pick) $12.00 10.0% $42.78 -43%
2×4×4 part wheel $12.00 9.7% $42.78 -51%
2×5×5 part wheel $24.00 16.8% $59.19 -35%

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: 61% · Top 4 cover 1.84 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
1ASASHEVILLE2.5-11.6-184.925%63%-10%
2BSNEIGH BABY8.0-16.0-181.016%47%+18%
9BEPQUARRY3.5-13.1-179.712%38%-19%
7BEPDIAMOND EYED JACK6.0-16.3-176.112%37%·+0%
8CPTHE HUND15-116-179.210%32%+17%
4SFLICK4.5-14.6-181.110%31%-15%
5PDIXIE DEVIL12-116-176.98%26%+6%
3RUGGED LOVE6.0-16.6-168.45%18%-18%
6SHE HAS GAME15-132-158.92%8%-8%

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 4 · Sun, May 24 · Churchill Downs. 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.