DataBaseball
2026
Mason Williams headshot

CF · 2021

Mason Williams

Age
30
B/T
L/R
Height
6' 1"
Weight
195 lb
Born
August 21, 1991 in Pawtucket, RI, USA
MLB debut
June 12, 2015
dbWAR
.1
7 season(s)
PA
37
AVG
.212
OBP
.297
SLG
.333
wRC+
73
100 = avg

Mason Williams was a center fielder for the New York Mets. In 2021 he hit 1 home run and knocked in 1 RBI, notching 7 hits across 37 plate appearances in 14 games. His batting average was .212, 13.0% lower than the league average of .244. He reached base at a .297 clip and slugged .333, for an OPS of .631, 13.4% lower than the league mark of .728. He averaged 85.9 mph off the bat, hit 25.0% of balls in play at 95 mph or better, barrelled 4.2% of them and made contact on 73.5% of his swings. Adjusted for his ballpark and league, his 73 wRC+ puts his offence 27% below average. That comes to -0.1 dbWAR — -1.4 runs with the bat, -0.4 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+73
wOBA.272
ISO.121
BB%10.8%
WAR-.1

How the WAR is built

Runs above replacement, 2021. These four terms sum to -0.5 runs, divided by runs-per-win to give WAR.

Batting-1.4Baserunning-0.4Position+0.1Replacement+1.2
BattingBaserunningPositionReplacement

WAR by season

0.2-0.0-0.315161718192021

Batting

Standard and advanced, by season.

Trend
20211437711049.212.297.333.121.26110.8%24.3%.272-1.473-0.1
2020618200009.111.111.222.111.2220.0%50.0%.138-2.8-25-0.3
20191134802136.267.324.300.033.3208.8%17.6%.278-1.368-0.0
20184913236261729.293.331.398.106.3705.3%22.0%.318-0.0960.2
2017517401212.250.294.250.000.2865.9%11.8%.248-1.147-0.0
20169298020112.296.321.333.037.5333.4%41.4%.289-0.777-0.0
2015822613013.286.318.571.286.2944.5%13.6%.381+1.11440.2

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 LHP971023.143.333.286.30033.3%
vs RHP28266126.231.286.346.26321.4%

Spray chart

Where every ball he put in play landed, 2021.

Loading 24 batted balls…

Contact quality

How hard and at what angle he hits it, over 24 tracked batted balls in 2021. Percentiles are against qualified batters.

Barrel rate
4.2%
1 barrels
Exit velocity
85.9
mph average
Max exit velo
102.2
mph, hardest hit
Hard hit
25.0%
95 mph or better
Sweet spot
33.3%
8–32° launch
Launch angle
10.3°
average
Barrel rate4.2%
Exit velocity85.9 mph
Hard hit rate25.0%
Contact rate73.5%

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.

1 AB2 AB3 AB3 AB5 AB5 AB4 AB2 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 Mason Williams 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 situations37.212.297.333.272
Bases empty252261136.273.360.455.357
Runner on first · thin8810003.125.125.125.110
Runners on · thin121110013.091.167.091.080
RISP · thin4300010.000.250.000.000

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 Mason Williams beside up to three others.

Compare — add up to 3 more players
Mason Williams
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.