DataBaseball
2026
Derek Fisher headshot

RF · 2021

Derek Fisher

Age
28
B/T
L/R
Height
6' 3"
Weight
215 lb
Number
#23
Born
August 21, 1993 in Lebanon, PA, USA
MLB debut
June 14, 2017
dbWAR
-.3
5 season(s)
PA
8
AVG
.250
OBP
.250
SLG
.500
wRC+
94
100 = avg

Derek Fisher is a right fielder for the Milwaukee Brewers. In 2021 he hit 0 home runs and knocked in 1 RBI, notching 2 hits across 8 plate appearances in 4 games. His batting average was .250, 2.5% higher than the league average of .244. He reached base at a .250 clip and slugged .500, for an OPS of .750, 3.0% higher than the league mark of .728. He averaged 89.4 mph off the bat, hit 14.3% of balls in play at 95 mph or better and made contact on 78.6% of his swings. Adjusted for his ballpark and league, his 94 wRC+ puts his offence 6% below average. That comes to 0.0 dbWAR — -0.0 runs with the bat, -0.0 on the bases, -0.1 for the position he plays, against replacement level. It includes no fielding: defensive runs are proprietary and are not estimated here, so the figure credits playing a demanding position but not playing it well.

League context

Percentile among qualified batters, 2021.

wRC+94
wOBA.310
ISO.250
BB%0.0%
WAR.0

How the WAR is built

Runs above replacement, 2021. These four terms sum to +0.1 runs, divided by runs-per-win to give WAR.

Batting-0.0Baserunning-0.0Position-0.1Replacement+0.3
BattingBaserunningPositionReplacement

WAR by season

0.1-0.0-0.21718192021

Batting

Standard and advanced, by season.

Trend
202148201001.250.250.500.250.2860.0%12.5%.310-0.0940.0
202016397170711.226.359.452.226.30017.9%28.2%.352+1.01190.1
2019481672771752157.185.287.370.185.24412.6%34.1%.288-4.976-0.1
20183786134112542.165.209.392.228.2575.8%48.8%.257-4.358-0.2
2017501663151731754.212.307.356.144.29910.2%32.5%.294-4.284-0.1

Platoon splits

How he hits left- and right-handed pitching.

Batting by the hand the pitcher throws with, 2021. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHP110000.000.000.000.0000.0%
vs RHP772001.286.286.571.35414.3%

Spray chart

Where every ball he put in play landed, 2021.

Loading 7 batted balls…

Contact quality

How hard and at what angle he hits it, over 7 tracked batted balls in 2021. Percentiles are against qualified batters.

Barrel rate
0.0%
0 barrels
Exit velocity
89.4
mph average
Max exit velo
100.0
mph, hardest hit
Hard hit
14.3%
95 mph or better
Sweet spot
0.0%
8–32° launch
Launch angle
13.0°
average
Barrel rate0.0%
Exit velocity89.4 mph
Hard hit rate14.3%
Contact rate78.6%

A barrel is a batted ball whose exit velocity and launch angle have historically produced at least a .500 average and 1.500 slugging — 98 mph within 26–30°, widening to 8–50° by 116 mph. Reconstructed from Statcast's published anchor points, which reproduces them exactly; the interior is within a degree. Sweet spot (8–32°) is an exact definition.

Hot and cold zones

Batting average by pitch location, 2021.

2 AB3 AB1 AB1 AB1 AB
Below averageLeague averageAbove average
Batting average by location of the pitch that ended each plate appearance, catcher's view. The bordered square is the strike zone; the outer band is chase territory. Cells with fewer than 8 at-bats are left grey rather than shown as signal. League average on the same attribution is .243.

Situational hitting

How Derek Fisher hits by base state, outs, score and late-game pressure — each read against his own season line.

Split by
By who is on base when he comes up. The season line is repeated as the baseline.
SituationPAABHHRRBIBBSOAVGOBPSLGwOBA
All situations8.250.250.500.310
Bases empty · thin5510000.200.200.600.321
Runners on · thin3310101.333.333.333.292
RISP · thin3310101.333.333.333.292

Runners on includes runners in scoring position, which is the convention every reference uses. Rows under 25 plate appearances are marked thin — at that size a rate moves several dozen points on one hit. Counted from play-by-play, 2021.

Head to head

Put Derek Fisher beside up to three others.

Compare — add up to 3 more players
Derek Fisher
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.