Probetrics — Sports Analytics
MLB Prop Board

Spencer Arrighetti

Houston Astros · P · Bats R · Throws R

Tonight's line
15.5
Model proj
15.75
Edge
+3.1%
Last 13
46%6/13 over 15.5
Window avg
16.08
Median
15.0
L5
60%
3/5
L10
50%
5/10
L20
46%
6/13
2026
50%
2/4
Avg16.08
StreakW1

Parlay pairs — when Spencer Arrighetti clears 15.5 Pitcher Outs, these hit too

Yainer Diaz o0.5 Hits
hits when he does 81% · base 68% · n=16 · -230 DraftKings
Yordan Alvarez o1.5 Total Bases
hits when he does 62% · base 48% · n=26 · -125 Bovada

Correlation from shared games in our database — books price correlated same-game legs accordingly; treat combined odds as an estimate.

Pitcher Outslast 13 vs 15.5

away only · official box scores
15@ OAK05/2518@ SEA05/3013@ CWS06/2015@ MIN07/0721@ BOS08/1023@ PHI08/2811@ MIN04/0511@ MIA08/0617@ BAL08/2415@ BOS05/0217@ CIN05/0915@ CHC05/2218@ KC06/1415.5

Tonight's odds — Pitcher Outs

BookLineOverUnder
DraftKings15.5-111-119
Bovada15.5-115-125

Line movement — Pitcher Outs

From our own market snapshots (every poll since lines opened).

15.512:11 AM ET12:11 AM ET
DraftKingsBovada

League vs WSH Pitcher Outs, 2026

Last 14 qualifying performances against them · 5/14 would clear tonight's 15.5

Tatsuya Imai HOU07/0711
Mike Burrows HOU07/0613
Bubba Chandler PIT07/0512
Braxton Ashcraft PIT07/0417
Mitch Keller PIT07/0318
Payton Tolle BOS07/019
Connelly Early BOS06/3012
Ranger Suarez BOS06/2918
Kyle Bradish BAL06/2812
Brandon Young BAL06/2715
Trevor Rogers BAL06/2619
Cristopher Sánchez PHI06/2515
Aaron Nola PHI06/2415
Jesús Luzardo PHI06/2320