DataBaseball
2026
Gabe Speier headshot

Pitcher · 2026

Gabe Speier

Age
31
B/T
L/L
Height
5' 11"
Weight
200 lb
Number
#55
Born
April 12, 1995 in Santa Barbara, CA, USA
MLB debut
September 5, 2019
Drafted
2013, round 19
High school
Dos Pueblos
Salary, 2026
$2.13M
dbWAR
2.1
3 season(s)
IP
30.0
ERA
2.10
FIP
4.09
K/9
8.1
FIP−
98
100 = avg

Gabe Speier is a relief pitcher for the Seattle Mariners. In 2026 he struck out 27 batters over 30.0 innings across 36 appearances, going 2-2. His ERA of 2.10 was 49.7% lower than the league average of 4.18 — the best on his team, and 26th of 467 among MLB pitchers with 20+ innings. Stripping out defence, his 4.09 FIP suggests that his ERA had some help behind him. He missed bats on 23.7% of swings (12.1% of every pitch he threw), walked 8.9% of the batters he faced and struck out 21.8%. His 0.2 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.

League context

Percentile among qualified pitchers, 2026.

FIP4.09
K/98.1
WHIP1.07
WAR.2

Platoon splits

How left- and right-handed hitters fare against him.

Opponent batting by the side the hitter bats from, 2026. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB575170414.137.196.196.18324.6%
vs RHB6754143713.259.379.481.37419.4%

Pitch sequencing

What Gabe Speier throws in each count, and what he follows each pitch with. Select any cell for the breakdown.

ShowBatter
Four-seamSinkerSliderChangeupSweeper

Select a count to see exactly what Gabe Speier throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2026.

Four-Seam Fastball40.1%18595.42,26555.1%29.5%
Sinker30.6%14194.82,13142.6%12.3%
Slider28.2%13084.12,23747.7%27.6%
Gabe Speier's arsenal by usage. Velocity is average release speed in mph, spin in rpm, and whiff rate is misses per swing — the cleanest single measure of whether a pitch beats hitters.

Pitching

Standard and advanced, by season.

Trend
202636030.022121727112.104.091.078.13.350980.2
202576062.0430431882112.612.310.8711.91.663561.6
202429023.2020191533145.703.501.3912.55.3140860.3

Head to head

Put Gabe Speier beside up to three others.

Compare — add up to 3 more players
Gabe Speier

Similar players

Nearest 2026 seasons by command, run prevention and role, on rate statistics rather than totals.

How these are computed

wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.