John-Z's Overlay · Trifecta ATM

Sun, May 17

Race 7

Md Sp Wt

Post: 3:50 · 6f · Dirt · $120K purse · 11 runners · LIVE Trifecta math uses live odds for 11 of 11 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

11 runners

Unprojectable

7 of 11 runners have no BRIS run-style code (likely first-time starters) — pace shape can't be called.

3 E — pure early 1 P — presser 7 Unclassified

Projected speed

7 of 11 runners have no BRIS run-style code (often first-time starters); narrative may understate the true pace.

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 9, 5, 11, 6

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

Cost

$6.00

6 combos

Hit prob

8.0%

simulated

Typical payout if hit

$8.67

mean $14.36

Expected ROI

-80.8%

net $-4.85

  • · Most-likely-to-cash structure: 1×3×3 key (top pick) on posts [9, 5, 11, 6] — hits 8.0% of simulated runs
  • · At $6 stake, a typical cash pays ≈ $9 (mean $14; trifecta payoffs are heavy-tailed). Estimated from the public pool, validated against archive payoffs.
  • · Multiple legitimate contenders — model is less concentrated.

A Top picks

9

B Contenders

5, 11, 6

C Value-edge longshots

3, 7

Other ticket structures (5)
Ticket Cost Hit prob Typical payout ROI
3-horse box $6.00 7.2% $8.67 -85%
2×4×4 part wheel $12.00 13.0% $15.47 -77%
A key, B in 2nd, A+B+C in 3rd $12.00 10.8% $8.67 -78%
1×4×4 key (top pick) $12.00 11.2% $16.49 -81%
1×5×5 key (top pick) $20.00 14.4% $19.58 -78%

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: 65% · Top 4 cover 1.95 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
9AEDEEP FLAME1.6-10.8-10.6-191.329%70%-30%
5BEPUTEKETEKE8.0-16.5-16.0-181.515%45%+9%
11BEMBRY SHOW3.5-13.5-1·3.5-181.614%42%-15%
6BPGREAT MOMENT6.0-17.2-115-178.812%38%+22%
8EARMET12-114-118-167.26%20%+6%
3CDON'S WINNER15-129-142-168.05%17%+11%
1FLASHY RICH DEAL10-115-136-167.85%16%+9%
7CECOSYSTEM20-142-159-168.64%14%+10%
2JUSTICE30-152-144-168.74%13%+7%
10MONSTER COOKIE20-140-129-168.04%13%·+4%
4CREVALLI20-156-183-166.83%12%+9%

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 7 · 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.