John-Z's Overlay · Trifecta ATM

Sun, May 17

Race 8

OClm 80000n2x

Post: 4:22 · 7f · Dirt · $134K purse · 8 runners · LIVE Trifecta math uses live odds for 8 of 8 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

8 runners

Contested pace

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

1 E — pure early 3 EP — early/presser 4 P — presser

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 10, 2, 8, 7

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

Cost

$6.00

6 combos

Hit prob

3.8%

simulated

Typical payout if hit

$13.10

mean $22.18

Expected ROI

-85.9%

net $-5.15

  • · Most-likely-to-cash structure: 1×3×3 key (top pick) on posts [10, 2, 8, 7] — hits 3.8% of simulated runs
  • · At $6 stake, a typical cash pays ≈ $13 (mean $22; 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

10

B Contenders

2, 8, 7

C Value-edge longshots

3, 1

Other ticket structures (5)
Ticket Cost Hit prob Typical payout ROI
3-horse box $6.00 3.8% $17.80 -89%
1×4×4 key (top pick) $12.00 7.1% $20.96 -81%
A key, B in 2nd, A+B+C in 3rd $12.00 7.0% $20.96 -81%
2×4×4 part wheel $12.00 6.9% $13.10 -88%
1×5×5 key (top pick) $20.00 10.9% $21.25 -75%

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: 58% · Top 4 cover 1.73 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 Live Pred Fig Win ITM% Edge
10APBEAUTY REIGNS4.0-13.1-11.6-190.718%51%-47%
2BEME AND MOLLY MCGEE2.5-11.8-11.2-187.715%43%-57%
8BEPBLUE FIRE3.0-13.0-18.0-188.214%41%+13%
7BEPVELVET VORTEX6.0-15.4-19.0-185.813%38%+13%
1CPMENDELA8.0-17.4-115-185.312%36%+20%
3CPUNTAMED MOMENT6.0-17.1-120-185.511%34%+22%
9EPL. A. WOMAN20-121-1·24-181.79%29%+19%
5PLOVIN' ON THE RUN30-142-114-183.29%28%+11%
4SCRPMISS ENCHANTED20-1
6SCRSFLASH WEAR50-1

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. Live column: ↓ green = ≥25% shorter than ML (money horse); ↑ red = ≥25% longer (drifting). See How to Use for the math.

Ask Claude Opus

Questions about the model's predictions for Race 8 · Sun, May 17 · 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.