John-Z's Overlay · Trifecta ATM

Sat, May 16

Race 4

OClm 125000n1x

Post: 7:26 · 1.06m · Turf · $127K purse · 10 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

10 runners

Contested pace

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

3 EP — early/presser 6 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.

1×3×3 key (top pick) on posts 4, 10, 3, 5

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

Cost

$6.00

6 combos

Hit prob

1.7%

simulated

Typical payout if hit

$80.07

mean $122.20

Expected ROI

-65.0%

net $-3.90

  • · Most-likely-to-cash structure: 1×3×3 key (top pick) on posts [4, 10, 3, 5] — hits 1.7% of simulated runs
  • · At $6 stake, a typical cash pays ≈ $80 (mean $122; 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

4

B Contenders

10, 3, 5

C Value-edge longshots

2

Other ticket structures (5)
Ticket Cost Hit prob Typical payout ROI
3-horse box $6.00 1.8% $80.07 -76%
A key, B in 2nd, A+B+C in 3rd $9.00 2.4% $134.49 -57%
2×4×4 part wheel $12.00 3.2% $87.90 -63%
1×4×4 key (top pick) $12.00 3.2% $80.07 -71%
1×5×5 key (top pick) $20.00 5.1% $97.73 -71%

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: 47% · Top 4 cover 1.42 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
4AEPSHARONS PHAROAH4.0-13.6-184.914%41%-10%
10BPDOCTRINE6.0-16.2-184.412%35%·-2%
3BPDR. AGNE3.5-14.0-183.911%33%-24%
5BSBRAVE FORCE12-112-183.711%33%+13%
7PCHAMBERSVILLE5.0-15.2-182.410%30%-12%
8PPATROL SQUAD SIX6.0-17.4-183.310%30%-7%
6PWINTER HOLIDAY8.0-17.2-181.39%29%·+1%
2CPMISCHIEF RIDE20-126-179.08%25%+13%
9EPSIX O CLOCK12-114-179.48%24%·+5%
1EPDA PRINCE IS RIGHT10-114-176.86%20%·-3%

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 · Sat, May 16 · 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.