MLB Sims

Red Sox @ Royals

2026-05-18

Kauffman Stadium · park factor 1.02 · first pitch 2026-05-18T23:10:00Z

Win probability

BOS
33.8%
KC
53.3%
Extras needed
12.9%

Expected runs

BOS expected
4.26
KC expected
5.03
Total expected
9.29
Total — 10/median/90
6 / 9 / 13

Most likely final scores

Score (BOS–KC)Probability
4 – 53.67%
4 – 43.30%
3 – 53.27%
5 – 53.02%
5 – 43.00%
3 – 42.91%
4 – 62.91%
3 – 62.80%

Over / under

LineOverUnder
10.5 33.2% 66.8%
6.5 81.9% 18.1%
7.5 71.5% 28.5%
8.5 59.1% 40.9%
9.5 45.4% 54.6%
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 →