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 20
75%15/20 over 15.5
Window avg
16.90
Median
18.0
L5
80%
4/5
L10
80%
8/10
L20
75%
15/20
2026
83%
5/6
Avg16.68
StreakW2

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 20 vs 15.5

home only · official box scores
15vs OAK05/1319vs MIL05/199vs STL06/044vs DET06/1521vs COL06/2618vs TEX07/1318vs LAD07/2818vs TB08/0417vs CWS08/1620vs OAK09/1018vs LAA09/2218vs NYM03/2915vs BOS08/1219vs LAA08/3018vs COL04/1521vs NYY04/2622vs TEX05/1512vs PIT06/0318vs CLE06/2018vs TB07/0315.5

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