Hayden Birdsong is a San Francisco Giants SP+RP projected for 0 fantasy points on 0 IP, 0 K, 4.3 ERA, 1.471 WHIP by the managr projection engine. Monte-Carlo outcome odds put an elite season at 0% and a bust at 14%.
Projection snapshot: 2026-09-28. Rebuilt daily.
Across 2 seasons with meaningful innings, Birdsong's biggest strikeout year came in 2024 at age 22: 88 strikeouts over 72 innings, with 5 wins. Innings across 2024 and 2025 ran 72 and 66.
In 2025, Birdsong's 4.80 ERA sat close to a 4.70 expected ERA, so the runs allowed matched the quality of contact.
Tracking data from 2025: Birdsong struck out 22.8% of batters and walked 12.4%, a strikeout-minus-walk rate of 10.4 points, and hitters missed on 28.4% of their swings. Contact against Birdsong averaged 89.8 mph off the bat, with a 9.6% barrel rate.
Birdsong's projected range runs from a 149-point floor to a 380-point upside, around a 186-point median: a spread of 231 points, or 124% of the median.
By statistical profile, the closest comparisons to Birdsong on the board are Andrew Nardi, Sean Hjelle and Collin Snider.
At 24, Birdsong is early in the typical pitcher development arc.
This report is generated from the managr engine's 2026-09-28 snapshot and rebuilt daily.
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