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Hayden Birdsong

SF · Relief pitcherBTB Value 4.89BTB Trust 19th

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 25 · 6' 5", 225 lb · Mattoon, IL, USA

BTB Trust ranks Hayden Birdsong in the 19th percentile of MLB pitchers for 2025.

2025 season
G
21
IP
65.2
ERA
4.80
WHIP
1.49
K
68
K%
22.8%
BB%
12.4%

Regular season, through Sep 28, 2025.

BTB Pro

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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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