MLB Sims

Pirates @ Cardinals

2026-05-20

Busch Stadium · park factor 0.96 · first pitch 2026-05-20T23:45:00Z

Win probability

PIT
52.5%
STL
33.8%
Extras needed
13.8%

Expected runs

PIT expected
4.54
STL expected
3.93
Total expected
8.48
Total — 10/median/90
5 / 8 / 12

Most likely final scores

Score (PIT–STL)Probability
4 – 33.90%
4 – 43.58%
5 – 43.40%
5 – 33.33%
3 – 33.29%
4 – 23.00%
3 – 42.98%
6 – 42.85%

Over / under

LineOverUnder
10.5 23.4% 76.6%
6.5 73.5% 26.5%
7.5 60.7% 39.3%
8.5 47.1% 52.9%
9.5 34.3% 65.7%
These numbers come from 10,000 Poisson simulations using season-to-date team strengths. No starting pitcher, lineup, or weather adjustment is applied (yet). Full methodology →