John-Z's Overlay · Trifecta ATM

Fri, May 1

Race 3

OClm 125000n1x

Post: 1:30 · 1.06m · Dirt · $127K purse · 10 runners · LIVE Trifecta math uses live odds for 10 of 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

Hot pace

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

1 E — pure early 5 EP — early/presser 2 P — presser 2 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 9, 10, 7, 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

$54.95

mean $66.57

Expected ROI

-81.7%

net $-4.90

  • · Most-likely-to-cash structure: 1×3×3 key (top pick) on posts [9, 10, 7, 5] — hits 1.7% of simulated runs
  • · At $6 stake, a typical cash pays ≈ $55 (mean $67; 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

9, 10

B Contenders

7, 5, 6

C Value-edge longshots

3, 8

Other ticket structures (5)
Ticket Cost Hit prob Typical payout ROI
3-horse box $6.00 1.8% $54.95 -84%
1×4×4 key (top pick) $12.00 3.2% $62.78 -77%
2×4×4 part wheel $12.00 3.3% $54.95 -82%
1×5×5 key (top pick) $20.00 5.0% $67.52 -73%
2×5×5 part wheel $24.00 6.3% $62.78 -77%

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 Live Pred Fig Win ITM% Edge
9APLEINANI5.0-13.8-12.5-184.814%39%-34%
10AEPSTAR ACTRESS4.0-14.3-12.5-185.013%38%-35%
7BPBETTY'S PEARL4.5-14.4-17.0-184.411%33%·+1%
5BEJOYFUL JUSTICE6.0-15.5-18.0-183.111%32%·+4%
6BEPMAXIMUM OFFER6.0-17.1-111-183.710%31%+10%
4EPMISS CALL10-18.6-1·11-183.310%31%+10%
11SFEISTY RED HEAD20-126-17.0-182.19%28%·-4%
2SMEASURE6.0-16.1-1·7.0-180.19%27%·-4%
3CEPKRISSYS STAR15-125-120-179.07%23%+11%
8CEPUR DESIRE20-134-135-175.05%17%+10%
1SCREMAKING DAISYS15-1

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 3 · Fri, May 1 · 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.