Players / Player profile
BOS · RF

Wilyer Abreu

Age 27 B/T L/L 5′10″, 215 lb Venezuela MLB debut 2023
40-man
  • Boston’s roster as it stands starts at RF · 571 PA · 3.0 WAR in the role
  • Trade read Unlikely to be traded: BOS expects to contend (76% playoff odds) and he’s a regular.
xwOBA .348 wOBA .340
2026 fWAR 3.3
Projected 2027 WAR 2.9 at 582 PA · 3.0 in his 2027 role

Hitting · 2026 percentiles

vs. MLB hitters with 300+ PA · 680 PA

xwOBA .348 xwOBA: .348, 83rd percentile
Swing decisions +0.30 Swing decisions: +0.30, 59th percentile
Contact value +1.37 Contact value: +1.37, 83rd percentile
Bat speed 73.8 Bat speed: 73.8, 74th percentile
Squared-up / swing 21% Squared-up / swing: 21%, 35th percentile
Blasts / swing 9% Blasts / swing: 9%, 64th percentile
EV90 105.3 EV90: 105.3, 66th percentile
Barrel % 12.5% Barrel %: 12.5%, 84th percentile
Chase % 29.9% Chase %: 29.9%, 50th percentile
Zone contact 82.5% Zone contact: 82.5%, 33rd percentile
Strikeout % 20.7% Strikeout %: 20.7%, 55th percentile
Walk % 10.0% Walk %: 10.0%, 67th percentile

Platoon splits · swing path

By pitcher handedness

vsPAwOBAxwOBAK%BB%ChaseDecisionsContact
LHP218.378.35017%11%27%+0.83+1.54
RHP462.322.34723%10%31%+0.04+1.29
Attack angle
8.1° (51% in 5–20°)
Attack direction
+0.6°
Swing length
7.2 ft
Fast-swing rate
33%
Pull-air %
18.1%
Hard-hit %
43.6%
Slash · wRC+
.248/.327/.446 · 112

Zone map · 2026

Where he does damage, and where to pitch him

−0.6+0.2−0.4−0.1−2.40.0−0.1+2.2+2.4−0.7−0.70.0−2.6+1.9+3.0−2.2−1.6+0.9+1.2+3.60.0+0.90.0+3.4+1.3LHB

Does the most damage up and in (+2.4 vs. league per 100; 1.1 standard errors on 82 pitches, inside the noise for the best of nine cells).

Weakest middle-middle (−2.6), but only 1.5 standard errors from average on 179 pitches: no in-zone spot to attack yet.

Runs per 100 pitches vs. an average LHB: better · worse. Catcher’s view · 2,468 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 Abreu: bat path, contact quality and approach

SimilarityPlayerxwOBA’26 WAR’27 proj2027
67Christian Walker HOU · ’91.3041.60.5Signed $20.0M
64Tim Tawa AZ · ’99.3230.20.2Pre-arb
64Joc Pederson TEX · ’92.3441.40.4Free agent
62Brandon Nimmo TEX · ’93.3401.71.1Signed $20.5M
62Corbin Carroll AZ · ’00.3424.24.4Signed $12.6M

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
RF +6.8 −0.7
LF +4.8prior −5.7
1B +7.3prior −8.2
Outs Above Average by position
SeasonPosOAARangeArm, DPRunsBatters
2026RF+2+2+3.6+5.65,703
2025RF+8+7+1.4+8.43,625
2024CF000.00.08
2024LF00+0.1+0.1152
2024RF+6+6+3.0+9.03,884
2023RF000.00.032
2023LF+10+0.4+0.4310
2023CF−1−1+0.4−0.6377

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 RF)
2025 · RF2026 · RF In (charging) +3+1Back +20Toward 3B line +60Toward 1B line −3+1vs. RHH +8+3vs. LHH 00
Tools (percentile; arm among RFs)
Arm at RF 95.3 mph · 96th
Sprint speed 28.0 ft/s · 67th
Reaction +0.8 ft · 74th
Burst +1.4 ft · 88th
Route +0.3 ft · 66th
Catch difficulty (latest season)
PlayMadeChancesRate
★★★★★32015%
★★★★3475%
★★★71258%
★★172181%
★2121100%
Zone rating (Keystone expected outs)
SeasonZoneBallsOuts vs. exp.
2026RF516+6.2
2025RF365+14.3
2024RF359+13.6

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 2.9 WAR Arbitration $4.7M*
2028 2.7 WAR Arbitration $9.3M*
2029 2.3 WAR Arbitration $15.6M*
2030 1.9 WAR Free agent

* projected arbitration or minimum salary. Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevelLevelTeamAgeGPA / IPPA / IP ·Line
2025AAAAAAWorcester Red Sox2627 PA 7 PA · .167/.286/.167 · 0 HR · 28.6% K · 14.3% BB

ABS challenges · 2026

Baseball Savant

As batter 64% 7/11 won · −0.1 runs
Keystone is an independent portfolio project. It is not affiliated with Major League Baseball or any club. Data: MLB Stats API, Baseball Savant, FanGraphs. Used under their terms for individual, non-commercial use.