DataBaseball
2026
Hirokazu Sawamura headshot

Pitcher · 2022

Hirokazu Sawamura

Age
34
B/T
R/R
Height
6' 0"
Weight
212 lb
Born
April 3, 1988 in Tochigi, Japan
MLB debut
April 2, 2021
dbWAR
-.0
2 season(s)
IP
50.2
ERA
3.73
FIP
4.16
K/9
7.1
FIP−
105
100 = avg

Hirokazu Sawamura is a relief pitcher for the Boston Red Sox. In 2022 he struck out 40 batters over 50.2 innings across 49 appearances, going 1-1. His ERA of 3.73 was 6.0% lower than the league average of 3.97 — 5th of 19 on his team, and 253rd of 546 among MLB pitchers with 20+ innings. Stripping out defence, his 4.16 FIP suggests that his ERA had some help behind him. He missed bats on 25.1% of swings (12.1% of every pitch he threw), walked 12.2% of the batters he faced and struck out 18.1%. 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, 2022.

FIP4.16
K/97.1
WHIP1.42
WAR.2

Pitching

Standard and advanced, by season.

Trend
202249050.2110452140273.734.161.427.14.8941050.2
202155053.0510451861323.065.001.4510.45.472117-0.2

Platoon splits

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

Opponent batting by the side the hitter bats from, 2022. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB83691321217.188.301.319.27820.5%
vs RHB1381203221523.267.341.350.30716.7%

Pitch sequencing

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

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Four-seamSplitterSlider

Select a count to see exactly what Hirokazu Sawamura throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2022.

Four-Seam Fastball48.6%40995.92,11143.8%12.0%
Splitter37.3%31492.01,41745.5%36.3%
Slider13.7%11585.82,29841.7%38.9%
Hirokazu Sawamura'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.

Head to head

Put Hirokazu Sawamura beside up to three others.

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Hirokazu Sawamura

Similar players

Nearest 2022 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.