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Griffin Jax

TB · Starting pitcherBTB Value 7.24BTB Trust 79th

What these mean
BTB Value
His pitches' physics graded on what they should produce this season, 5 = 2025 league average, 1 point = 1 SD.
BTB Trust
Percentile among MLB pitchers (SP 50+ IP, RP 20+ IP), starters and relievers in one pool; higher is better. A season read of how far the player can be trusted: it describes the player, not tonight's line or projection.

Bats R · Throws R · Age 31 · 6' 2", 195 lb · Phoenix, AZ, USA

BTB Trust ranks Griffin Jax in the 79th percentile of MLB pitchers for 2026.

2026 season
G
34
IP
112.1
ERA
3.53
WHIP
1.18
K
116
K%
25.3%
BB%
7.6%

Regular season, through Sep 27, 2026.

BTB Pro

The full page is for members.

  • His strikeout projection for every start, with the likely range
  • The book's line beside our number, and how far apart they are
  • The matchup: tonight's lineup, his pitch mix and the park
  • Every past projection beside what happened
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