Players · F · Pitcher · 2022

Aaron Fletcher

Pittsburgh Pirates National League Central

Age: 26
B/T: L/L
Height: 6' 0"
Weight: 220 lb

Born: February 25, 1996 in Geneseo, IL, United States
MLB debut: August 22, 2020

dbWAR: -.5
IP: 11.2
ERA: 6.94
FIP: 6.11
K/9: 4.6
FIP−: 154

Aaron Fletcher was a relief pitcher for the Pittsburgh Pirates. In 2022 he struck out 6 batters over 11.2 innings across 9 appearances, going 0-1. His ERA of 6.94 was 75.0% higher than the league average of 3.97. Stripping out defence, his 6.11 FIP suggests he pitched better than his ERA shows. He missed bats on 29.1% of swings (13.3% of every pitch he threw), walked 7.7% of the batters he faced and struck out 11.5%. 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.

FIP6.11

K/94.6

WHIP1.20

WAR-.2

WAR by season

Pitching

Standard and advanced, by season.


2022	PIT	9	11.2	1	10	9	6	4	6.94	6.11	1.20	4.6	3.1	175	154	-0.2
2021	SEA	4	3.2	0	7	5	2	1	12.27	6.44	2.18	4.9	2.5	288	151	-0.1
2020	SEA	6	4.1	0	7	6	7	7	12.46	9.19	3.23	14.5	14.5	280	206	-0.2

Platoon splits

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

Season

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.
Split	PA	AB	H	HR	BB	SO	AVG	OBP	SLG	wOBA	K%
vs LHB	20	16	4	0	2	1	.250	.400	.250	.321	5.0%
vs RHB	32	27	6	2	2	5	.222	.281	.519	.328	15.6%

Pitch sequencing

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

ShowBatter

SinkerChangeupSlider

Select a count to see exactly what Aaron Fletcher throws in it.

Pitch arsenal

What he throws, how hard, how often it misses, and what hitters do with it.

Season


Sinker	49.1%	85	90.8	2,281	38.8%	21.1%	23	.261	.915
Changeup	27.7%	48	74.9	1,884	52.1%	35.7%	13	—	—
Slider	23.1%	40	79.6	1,808	30.0%	38.5%	7	—	—

Aaron Fletcher'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. BAA and OPS are what hitters did against each pitch, credited to the one that ended the plate appearance, and are left blank under 15 at-bats.

Head to head

Put Aaron Fletcher beside up to three others.

Compare — add up to 3 more players

Aaron Fletcher

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.