Hayden Birdsong

Hayden Birdsong

23-Year-Old PitcherSP
San Francisco Giants
2025 Fantasy Outlook
Birdsong began last season at Double-A Richmond but wound up making 16 starts for the Giants. He flashed plenty of swing-and-miss ability with a 27.9 percent strikeout rate and a pair of double-digit strikeout outings, but the young right-hander also had an ugly 13.7 percent walk rate and completed six innings in just one of his 16 starts. Birdsong has three legitimate secondary pitches in his curveball, changeup and slider, with each garnering a whiff rate of at least 32.7 percent and all three offerings earning excellent Stuff+ grades. However, his Location+ of 92 was among the worst in baseball for a regular starter, which no doubt was the main reason why opponents had an obscene 50 percent hard-hit rate. There's legitimate upside with Birdsong and he could open 2025 in the Giants' rotation, but he'll have to improve his command and control to be a reliable option in fantasy. Read Past Outlooks
RANKS
Rest of Season From Preseason
#365
ADP
$Signed a one-year contract with the Giants in June of 2024.
Starting season in bullpen
PSan Francisco Giants
March 24, 2025
Birdsong will serve out of the Giants' bullpen for the start of the 2025 season after Landen Roupp was named as the fifth starter Monday, Alex Pavlovic of NBC Sports Bay Area reports.
ANALYSIS
Birdsong and Roupp were the final two candidates for the Giants' fifth-starter spot after Kyle Harrison was optioned to Triple-A Sacramento on Saturday. Birdsong recorded a 0.75 ERA across 12 Cactus League innings this spring, but he'll begin the 2025 regular season in the bullpen, possibly in a long reliever role.
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Pitching Stats
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2025
2024
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Scoring
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2024 MLB Game Log
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Left/Right Pitching Splits
Since 2023
 
 
-1%
BAA vs RHP
2025
No Stats
2024
 
 
-1%
BAA vs RHP
2023
No Stats
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .217 186 48 28 33 5 1 4
Since 2023vs Right .214 129 40 15 24 6 0 7
2025vs Left 0 0 0 0 0 0 0 0
2025vs Right 0 0 0 0 0 0 0 0
2024vs Left .217 186 48 28 33 5 1 4
2024vs Right .214 129 40 15 24 6 0 7
2023vs Left 0 0 0 0 0 0 0 0
2023vs Right 0 0 0 0 0 0 0 0
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Home/Away Pitching Splits
Since 2023
 
 
-24%
ERA at Home
2025
No Stats
2024
 
 
-24%
ERA at Home
2023
No Stats
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2023Home 4.02 1.40 31.1 1 3 0 11.5 5.5 1.4
Since 2023Away 5.31 1.38 40.2 4 3 0 10.6 5.3 1.3
2025Home 0 0 0 0 0 0 0 0 0
2025Away 0 0 0 0 0 0 0 0 0
2024Home 4.02 1.40 31.1 1 3 0 11.5 5.5 1.4
2024Away 5.31 1.38 40.2 4 3 0 10.6 5.3 1.3
2023Home 0 0 0 0 0 0 0 0 0
2023Away 0 0 0 0 0 0 0 0 0
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Prospect Rankings History
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Defensive Stats
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Stats Vs Today's Lineup
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Recent RotoWire Articles Featuring Hayden Birdsong See More
MLB FAAB Factor: 'Tis the Season
2 days ago
Kyle Behren’s Opening Day FAAB includes a healthy Byron Buxton, whose hot start to spring training for the Twins hasn’t cooled down.
Spring Training Job Battles: National League Update
5 days ago
Much has been decided in the National League over the last few days, including the Giants' fifth starter job, which was won by Landen Roupp.
NL FAAB Factor: Waiver Pickups of the Week
6 days ago
Jan Levine has a slightly smaller rundown of NL options than last week to get you prepared for the North American start to the regular season.
RotoWire Roundtable: Updated Fantasy Baseball Top-300 Rankings
8 days ago
The latest update to the RotoWire Roundtable Rankings sees Jackson Chourio move into the back of the first round.
MLB FAAB Factor: The Calm Before the Storm
9 days ago
This week's FAAB includes pitcher Hayden Birdsong, who looks likely to end up as the Giants' SP5.
2024 Fantasy Outlook
Known for his premium stuff and wild control heading into 2023, Birdsong kept the starting pitching dream alive by throwing more strikes than expected as a 21-year-old at Single-A and High-A. From April 26 through July 30, Birdsong had a 2.48 ERA, 1.06 WHIP, 100 strikeouts and 25 walks in 69 innings. That dominant run was book-ended by some struggles, particularly a 12.5 percent walk rate in 23 innings after a late-season promotion to Double-A. Birdsong's stuff and potential home park are still an alluring combination in dynasty leagues. The 6-foot-4 righty boasts a plus mid-90s fastball, a potentially plus low-80s curveball and a solid slider. If he shows improved control in a return to Double-A, Birdsong will have an up arrow next to his name as a potential high-strikeout mid-rotation starter who could reach the majors in late 2024 or early 2025. An eventual move to relief remains a possibility.
More Fantasy News
OK after fingernail issue
PSan Francisco Giants
March 24, 2025
Birdsong is expected to be fine after dealing with a cracked right middle fingernail during an appearance Sunday in an exhibition game versus Triple-A Sacramento, Shayna Rubin of the San Francisco Chronicle reports.
ANALYSIS
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Makes San Francisco's roster
PSan Francisco Giants
March 24, 2025
Birdsong has made the Giants' Opening Day roster, Jon Heyman of the New York Post reports.
ANALYSIS
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Still in mix for fifth-starter role
PSan Francisco Giants
March 22, 2025
Birdsong remains neck-and-neck with Landen Roupp for the fifth-starter role, Susan Slusser of the San Francisco Chronicle reports.
ANALYSIS
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Generating buzz in rotation bid
PSan Francisco Giants
March 17, 2025
Birdsong struck out eight over five scoreless innings against the A's on Sunday and now has a 0.75 ERA, 0.50 WHIP and 18:0 K:BB over 12 Cactus League innings this spring.
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Still in mix for rotation
PSan Francisco Giants
March 12, 2025
Birdsong has a 2.89 ERA and a 13:1 K:BB this spring, including an outing against minor leaguers that doesn't count toward his Cactus League stats, and he is in the mix for a rotation spot, Justice delos Santos of The San Jose Mercury News reports.
ANALYSIS
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