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Jonathan Bowlan

PHI · Relief pitcherBTB Value 6.43BTB Trust 92nd

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 typical reliever's season is about 200 batters, so about half the gap between two relievers is noise: expect it to move more than a starter's. 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 29 · 6' 6", 240 lb · Arlington, TN, USA

BTB Trust ranks Jonathan Bowlan in the 92nd percentile of MLB pitchers for 2026.

2026 season
G
59
IP
56.1
ERA
3.36
WHIP
1.03
K
73
K%
31.9%
BB%
6.6%

Regular season, through Sep 27, 2026.

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  • 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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