DataBaseball
2026
Wyatt Mathisen headshot

1B · 2021

Wyatt Mathisen

Age
28
B/T
R/R
Height
6' 0"
Weight
217 lb
Number
#27
Born
December 30, 1993 in Corpus Christi, TX, USA
MLB debut
September 7, 2020
dbWAR
-.1
3 season(s)
PA
51
AVG
.119
OBP
.255
SLG
.190
wRC+
34
100 = avg

Wyatt Mathisen is a first baseman for the Arizona Diamondbacks. In 2021 he hit 1 home run and knocked in 8 RBIs, notching 5 hits across 51 plate appearances in 22 games. His batting average was .119, 51.2% lower than the league average of .244. He reached base at a .255 clip and slugged .190, for an OPS of .445, 38.8% lower than the league mark of .728. He averaged 86.8 mph off the bat, hit 40.9% of balls in play at 95 mph or better, barrelled 4.5% of them and made contact on 56.5% of his swings. Adjusted for his ballpark and league, his 34 wRC+ puts his offence 66% below average. That comes to -0.3 dbWAR — -4.0 runs with the bat, -0.0 on the bases, -1.0 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+34
wOBA.223
ISO.071
BB%9.8%
WAR-.3

How the WAR is built

Runs above replacement, 2021. These four terms sum to -3.4 runs, divided by runs-per-win to give WAR.

Batting-4.0Baserunning-0.0Position-1.0Replacement+1.7
BattingBaserunningPositionReplacement

WAR by season

0.2-0.1-0.32021

Batting

Standard and advanced, by season.

Trend
202122515180521.119.255.190.071.1909.8%41.2%.223-4.034-0.3
20209336250512.222.364.444.222.30815.2%36.4%.358+1.01230.2

Pitching

Standard and advanced, by season.

Trend
2021101.000010000.003.171.000.00.00740.0

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 LHP21192018.105.190.105.15438.1%
vs RHP302331413.130.300.261.27143.3%
Opponent batting by the side the hitter bats from, 2021. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB220000.000.000.000.0000.0%
vs RHB221000.500.500.500.4380.0%

Spray chart

Where every ball he put in play landed, 2021.

Loading 22 batted balls…

Contact quality

How hard and at what angle he hits it, over 22 tracked batted balls in 2021. Percentiles are against qualified batters.

Barrel rate
4.5%
1 barrels
Exit velocity
86.8
mph average
Max exit velo
108.1
mph, hardest hit
Hard hit
40.9%
95 mph or better
Sweet spot
36.4%
8–32° launch
Launch angle
23.8°
average
Barrel rate4.5%
Exit velocity86.8 mph
Hard hit rate40.9%
Contact rate56.5%

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 AB2 AB4 AB4 AB7 AB3 AB3 AB3 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 Wyatt Mathisen 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 situations51.119.255.190.223
Bases empty2522211213.091.200.227.203
Runner on first · thin7600013.000.143.000.104
Runners on262030738.150.308.150.243
RISP · thin191430725.214.368.214.294

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.

Pitch sequencing

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

ShowBatter
Fastball

Select a count to see exactly what Wyatt Mathisen throws in it.

Pitch arsenal

What he throws, how hard, and how often it misses in 2021.

Head to head

Put Wyatt Mathisen beside up to three others.

Compare — add up to 3 more players
Wyatt Mathisen
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.