Players / Player profile
BOS · 1B

Willson Contreras

Age 34 B/T R/R 6′0″, 240 lb Venezuela MLB debut 2016
40-man
  • Boston’s roster as it stands starts at 1B · 421 PA · 2.0 WAR in the role
  • Injured list 2026: Left hamstring strain (Aug 31–Sep 13)
  • Trade read Unlikely to be traded: BOS expects to contend (76% playoff odds) and he’s a regular.
xwOBA .375 wOBA .402
2026 fWAR 4.0
Projected 2027 WAR 1.9 at 424 PA · 2.0 in his 2027 role

Hitting · 2026 percentiles

vs. MLB hitters with 300+ PA · 534 PA

xwOBA .375 xwOBA: .375, 95th percentile
Swing decisions −0.64 Swing decisions: −0.64, 21st percentile
Contact value +2.15 Contact value: +2.15, 92nd percentile
Bat speed 77.0 Bat speed: 77.0, 97th percentile
Squared-up / swing 15% Squared-up / swing: 15%, 3rd percentile
Blasts / swing 9% Blasts / swing: 9%, 71st percentile
EV90 108.6 EV90: 108.6, 95th percentile
Barrel % 13.3% Barrel %: 13.3%, 91st percentile
Chase % 34.2% Chase %: 34.2%, 24th percentile
Zone contact 82.1% Zone contact: 82.1%, 30th percentile
Strikeout % 25.3% Strikeout %: 25.3%, 26th percentile
Walk % 10.7% Walk %: 10.7%, 77th percentile

Platoon splits · swing path

By pitcher handedness

vsPAwOBAxwOBAK%BB%ChaseDecisionsContact
LHP144.436.41919%15%31%−0.03+2.85
RHP390.390.35927%9%35%−0.88+1.88
Attack angle
11.4° (50% in 5–20°)
Attack direction
−7.8°
Swing length
7.9 ft
Fast-swing rate
64%
Pull-air %
23.7%
Hard-hit %
44.4%
Slash · wRC+
.275/.386/.516 · 151

Zone map · 2026

Where he does damage, and where to pitch him

+6.8+1.2−0.1+1.9−0.4+2.1−1.3+1.0+6.0+1.1+2.0+0.6−0.7+2.1+1.1+1.6−0.3+5.4+9.7−2.3+0.6+1.3−0.4−1.0−1.6RHB

Does the most damage down and away (+9.7 vs. league per 100; 4.8 standard errors above average on 114 pitches).

Weakest up and in (−1.3), but only 0.6 standard errors from average on 77 pitches: no in-zone spot to attack yet.

Runs per 100 pitches vs. an average RHB: better · worse. Catcher’s view · 1,839 pitches · faded cells are within one standard error of average. A spot is called only when it is farther from average than the best or worst of nine average cells gets 95% of the time (set from the league’s own pitches: about 3 standard errors above, 2 below).

Most similar hitters

Swings like Contreras: bat path, contact quality and approach

SimilarityPlayerxwOBA’26 WAR’27 proj2027
64Jake Burger TEX · ’96.3161.50.6Arb
60Luis Robert Jr. BAL · ’97.3240.50.7Free agent
54Cam Smith HOU · ’03.3181.41.5Pre-arb
52Royce Lewis MIN · ’99.3060.50.9Arb
52Coby Mayo BAL · ’01.3362.01.3Pre-arb

Nearest neighbours on bat speed, swing length, attack angle, squared-up and blast rates, EV90, barrels, pull-air, chase, zone contact, K% and BB%. 2026 regulars only.

Fielding

2027 rating at every position he can play · OAA by position · range by direction · tools. Same engine as the Fielding Lab and the Winter Plan.

2027 rating by position · best fit first, on the total with the position’s worth
C −18.7 −9.2
1B +0.6 −11.9
Outs Above Average by position
SeasonPosOAARangeArm, DPRunsBatters
20261B+10+0.4+0.44,495
20251B+6+4−2.8+1.24,350

Runs = range plus his arm and double-play runs spread over his positions by outs (Fielding Run Value, from 2023): what the rating counts.

Range by direction (OAA at 1B)
2025 · 1B2026 · 1B In (charging) 0−2Back 00Toward 3B line +4−2Toward 1B line +2+4vs. RHH +1+2vs. LHH +5−1

At 1B in 2026, the biggest loss came in (charging) (−2 outs): a coaching target.

Tools (percentile; arm among 1Bs)
Arm at 1B 85.0 mph · 96th
Sprint speed 27.3 ft/s · 48th
Zone rating (Keystone expected outs)
SeasonZoneBallsOuts vs. exp.
20261B254−3.3
20251B268+5.4

The zone rating counts every ball hit to his part of the field while he played there, his club’s positioning included; Savant OAA uses his actual starting spot and is the better individual grade. They agree best in the outfield. See the model card.

Compare in the Fielding Lab →

Contract & projection

Club control (RosterResource) · Keystone projected WAR

2027 1.9 WAR Guaranteed $17.0M
2028 1.1 WAR Club option $20.0M
2029 0.3 WAR Free agent
2030 −0.4 WAR Free agent

Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevelLevelTeamAgeGPA / IPPA / IP ·Line
2026AAAAPortland Sea Dogs3427 PA 7 PA · .286/.286/.286 · 0 HR · 42.9% K · 0.0% BB

ABS challenges · 2026

Baseball Savant

As batter 42% 10/24 won · −0.1 runs
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