DataBaseball
2026
Jason Martin headshot

LF · 2021

Jason Martin

Age
26
B/T
L/R
Height
5' 8"
Weight
185 lb
Born
September 5, 1995 in Corona, CA, USA
MLB debut
April 6, 2019
dbWAR
-.5
3 season(s)
PA
154
AVG
.208
OBP
.248
SLG
.354
wRC+
61
100 = avg

Jason Martin is a left fielder for the Texas Rangers. In 2021 he hit 6 home runs and knocked in 17 RBIs, notching 30 hits across 154 plate appearances in 55 games. His batting average was .208, 14.6% lower than the league average of .244. He reached base at a .248 clip and slugged .354, for an OPS of .603, 17.2% lower than the league mark of .728 — 12th of 18 on his team, and 408th of 463 among MLB batters with 100+ plate appearances. He averaged 85.5 mph off the bat, hit 33.7% of balls in play at 95 mph or better, barrelled 5.8% of them and made contact on 70.9% of his swings. Adjusted for his ballpark and league, his 61 wRC+ puts his offence 39% below average. That comes to -0.4 dbWAR — -7.3 runs with the bat, +0.1 on the bases, -1.9 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+61
wOBA.261
ISO.146
BB%5.2%
WAR-.4

How the WAR is built

Runs above replacement, 2021. These four terms sum to -4.0 runs, divided by runs-per-win to give WAR.

Batting-7.3Baserunning+0.1Position-1.9Replacement+5.1
BattingBaserunningPositionReplacement

WAR by season

0.0-0.2-0.4192021

Batting

Standard and advanced, by season.

Trend
202155154306173841.208.248.354.146.2455.2%26.6%.261-7.361-0.4
2020611000024.000.182.000.000.00018.2%36.4%.131-1.8-30-0.1
201917409022410.250.325.306.056.34610.0%25.0%.285-1.3740.0

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 LHP373740010.108.108.108.09527.0%
vs RHP117107266831.243.293.439.31426.5%

Spray chart

Where every ball he put in play landed, 2021.

Loading 105 batted balls…

Contact quality

How hard and at what angle he hits it, over 104 tracked batted balls in 2021. Percentiles are against qualified batters.

Barrel rate
5.8%
6 barrels
Exit velocity
85.5
mph average
Max exit velo
108.1
mph, hardest hit
Hard hit
33.7%
95 mph or better
Sweet spot
33.7%
8–32° launch
Launch angle
11.6°
average
Barrel rate5.8%
Exit velocity85.5 mph
Hard hit rate33.7%
Contact rate70.9%

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.

.059.30010 AB.33312 AB.2229 AB.06715 AB.10020 AB.28614 AB.33315 AB.40015 AB4 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 Jason Martin 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 situations154.208.248.354.261
Bases empty88831622524.193.239.277.230
Runner on first383682419.222.243.444.289
Runners on666114415317.230.262.459.302
RISP2825621128.240.286.480.319

Runners on includes runners in scoring position, which is the convention every reference uses. Counted from play-by-play, 2021.

Head to head

Put Jason Martin beside up to three others.

Compare — add up to 3 more players
Jason Martin

Similar players

Nearest 2021 seasons by discipline, contact, power and speed, 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.