John-Z's Overlay · Trifecta ATM

Fri, May 15

Race 7

Alw 12500s

Post: 3:50 · 6f · Dirt · $60K 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

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

5 EP — early/presser 1 P — presser 1 S — closer

Projected speed

Trifecta shape

Wide open

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

3-horse box on posts 6, 5, 8

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

Cost

$6.00

6 combos

Hit prob

4.5%

simulated

Typical payout if hit

$122.33

mean $134.42

Expected ROI

+0.6%

net $0.04

  • · Most-likely-to-cash structure: 3-horse box on posts [6, 5, 8] — hits 4.5% of simulated runs
  • · At $6 stake, a typical cash pays ≈ $122 (mean $134; 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

6, 5

B Contenders

8, 2, 4

C Value-edge longshots

7, 1

Other ticket structures (5)
Ticket Cost Hit prob Typical payout ROI
1×3×3 key (top pick) $6.00 4.3% $18.61 -80%
2×4×4 part wheel $12.00 8.6% $18.61 -77%
1×4×4 key (top pick) $12.00 8.5% $18.61 -77%
1×5×5 key (top pick) $20.00 13.1% $25.49 -68%
2×5×5 part wheel $24.00 16.4% $21.04 -72%

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: 62% · Top 4 cover 1.86 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
6AEPMARGOINABUBBLEBATH3.5-13.3-179.417%50%-7%
5AEPTALKIN IN CURSIVE4.5-16.3-179.716%47%·+0%
8BEPSASSY AND BOLD12-115-178.116%46%+26%
2BEPPOP ROX1.2-11.8-177.414%44%-56%
4BSMIRANDA'S ROCKY6.0-18.7-178.414%43%+7%
7CPPROTOMAGIC20-129-175.612%39%+26%
1CEPCHAPARRITA15-119-174.010%32%+17%
3SCREGLADRIEL10-1

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 7 · Fri, May 15 · 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.