John-Z's Overlay · Trifecta ATM

Sun, May 10

Race 9

Clm 80000n2l

Post: 4:56 · 1m · Dirt · $82K purse · 7 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

7 runners

Hot pace

6 early types pressing for the lead — expect a fast pace, favors closers (P/S).

2 E — pure early 4 EP — early/presser 1 P — presser

Projected speed

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 2, 1, 9, 7

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

Cost

$6.00

6 combos

Hit prob

6.3%

simulated

Typical payout if hit

$9.37

mean $15.58

Expected ROI

-83.6%

net $-5.01

  • · Most-likely-to-cash structure: 1×3×3 key (top pick) on posts [2, 1, 9, 7] — hits 6.3% of simulated runs
  • · At $6 stake, a typical cash pays ≈ $9 (mean $16; trifecta payoffs are heavy-tailed). Estimated from the public pool, validated against archive payoffs.
  • · Multiple legitimate contenders — model is less concentrated.

A Top picks

2, 1

B Contenders

9, 7, 6

C Value-edge longshots

8, 4

Other ticket structures (5)
Ticket Cost Hit prob Typical payout ROI
3-horse box $6.00 6.7% $8.20 -91%
1×4×4 key (top pick) $12.00 11.2% $9.37 -78%
2×4×4 part wheel $12.00 12.5% $8.20 -85%
1×5×5 key (top pick) $20.00 15.5% $17.94 -74%
4-horse box $24.00 23.1% $10.39 -80%

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: 67% · Top 4 cover 2.01 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
2AEPGETHSEMANE2.5-12.0-182.320%56%-17%
1AEMIRACLE MARK1.8-11.7-181.918%52%-39%
9BPHOT PROPERTY4.5-14.4-178.016%48%·+2%
7BEPSHOW OF FORCE15-115-181.415%46%+30%
6BEPWHITE WHALE10-115-179.213%39%+16%
4CEPBIG GARRY20-127-173.59%31%+18%
8CESTART MO UP30-141-173.29%29%+20%
3SCRPADMIRAL HALL12-1
5SCREPCLOCKER SPECIAL6.0-1

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 9 · Sun, May 10 · 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.