One type of hitter does all the damage against him
Hitters do their damage on his offspeed pitches: a .393 expected average against them, against .275 on his fastballs.
201 of his offspeed pitches thrown.
He handles both hands about the same
Right-handed hitters project to a .282 average against Birdsong and left-handers to .360.
580 pitches to right-handed hitters, 614 to left-handed hitters.
There is one pitch of his that keeps getting hit
Contact off Birdsong's curveball leaves the bat at 96.4 mph, against 84.1 off his slider.
155 and 291 of them thrown.
Too much of the contact against him is loud
46.8% of the contact Birdsong gives up is hit hard, 17th percentile.
1194 pitches in 2025. 17th percentile among qualified pitchers in 2025, 650th in MLB.
One side of the plate does most of the damage against him
Right-handed hitters average 87.4 mph off the bat against Birdsong and left-handers 91.7.
97 tracked batted balls from right-handers, 91 from left-handers.
He cannot find the zone often enough
Birdsong works off the plate, with only 42.6% of his pitches in the zone, 14th percentile.
1194 pitches in 2025. 14th percentile among qualified pitchers in 2025, 668th in MLB.
Runners on base do not change how he is hit
51.2% of the contact against Birdsong with a runner in scoring position is hit hard, against 45.5% with the bases empty.
255 pitches with a runner in scoring position, 939 with the bases empty.
The contact he allows should not turn into many hits
The quality of contact against Birdsong projects a .320 average, 69th percentile.
1194 pitches in 2025. 69th percentile among qualified pitchers in 2025, 243rd in MLB.
Both sides hit him about the same
44.3% of the contact right-handers make against Birdsong is hit hard, against 49.5% of what left-handers make.
580 pitches to right-handed hitters, 614 to left-handed hitters.
The shape of the contact off him says how he gets outs
35.5% of the contact against Birdsong is on the ground and 42.5% of it is in the air.
186 tracked batted balls allowed.
Hitters tend to hit him to one part of the field
43.6% of the balls put in play against Birdsong have gone to centre field.
82 of 188 located batted balls allowed.
He throws about as hard as anybody in the league
Birdsong averages 90.6 mph across his arsenal, 66th percentile in the league.
1194 pitches in 2025. 66th percentile among qualified pitchers in 2025, 263rd in MLB.
When hitters connect off him, they hit it hard
Hitters average 89.5 mph off the bat against Birdsong, 38th percentile.
1194 pitches in 2025. 38th percentile among qualified pitchers in 2025, 484th in MLB.
The home runs are what is undoing his season
Birdsong has given up 10 tracked home runs, 4 of them to right field, the longest 443 feet.
10 tracked home runs allowed in 2025.
Show more
The numbers behind these live in Pitch Data.
Take me there
One type of hitter does all the damage against him
Hitters do their damage on his offspeed pitches: a .393 expected average against them, against .275 on his fastballs.
201 of his offspeed pitches thrown.
The numbers behind these live in Matchups.
Take me there
He handles both hands about the same
Right-handed hitters project to a .282 average against Birdsong and left-handers to .360.
580 pitches to right-handed hitters, 614 to left-handed hitters.
Both sides hit him about the same
44.3% of the contact right-handers make against Birdsong is hit hard, against 49.5% of what left-handers make.
580 pitches to right-handed hitters, 614 to left-handed hitters.
The numbers behind these live in Pitch Data.
Take me there
There is one pitch of his that keeps getting hit
Contact off Birdsong's curveball leaves the bat at 96.4 mph, against 84.1 off his slider.
155 and 291 of them thrown.
The numbers behind these live in Spray Chart.
Take me there
Too much of the contact against him is loud
46.8% of the contact Birdsong gives up is hit hard, 17th percentile.
1194 pitches in 2025. 17th percentile among qualified pitchers in 2025, 650th in MLB.
The contact he allows should not turn into many hits
The quality of contact against Birdsong projects a .320 average, 69th percentile.
1194 pitches in 2025. 69th percentile among qualified pitchers in 2025, 243rd in MLB.
When hitters connect off him, they hit it hard
Hitters average 89.5 mph off the bat against Birdsong, 38th percentile.
1194 pitches in 2025. 38th percentile among qualified pitchers in 2025, 484th in MLB.
The numbers behind these live in Pitch Data.
Take me there
One side of the plate does most of the damage against him
Right-handed hitters average 87.4 mph off the bat against Birdsong and left-handers 91.7.
97 tracked batted balls from right-handers, 91 from left-handers.
The shape of the contact off him says how he gets outs
35.5% of the contact against Birdsong is on the ground and 42.5% of it is in the air.
186 tracked batted balls allowed.
Hitters tend to hit him to one part of the field
43.6% of the balls put in play against Birdsong have gone to centre field.
82 of 188 located batted balls allowed.
The home runs are what is undoing his season
Birdsong has given up 10 tracked home runs, 4 of them to right field, the longest 443 feet.
10 tracked home runs allowed in 2025.
The numbers behind these live in Pitch Data.
Take me there
He cannot find the zone often enough
Birdsong works off the plate, with only 42.6% of his pitches in the zone, 14th percentile.
1194 pitches in 2025. 14th percentile among qualified pitchers in 2025, 668th in MLB.
The numbers behind these live in Matchups.
Take me there
Runners on base do not change how he is hit
51.2% of the contact against Birdsong with a runner in scoring position is hit hard, against 45.5% with the bases empty.
255 pitches with a runner in scoring position, 939 with the bases empty.
The numbers behind these live in Pitch Data.
Take me there
He throws about as hard as anybody in the league
Birdsong averages 90.6 mph across his arsenal, 66th percentile in the league.
1194 pitches in 2025. 66th percentile among qualified pitchers in 2025, 263rd in MLB.
Giants
Career team 2024–2025