Players / Player profile
BOS · C

Connor Wong

Age 30 B/T R/R 5′10″, 190 lb USA MLB debut 2021
40-man
  • Trade read Available at a price: BOS 76% playoff odds; control through 2028.
xwOBA .284 wOBA .301
2026 fWAR −0.2
Projected 2027 WAR 0.0 Keystone Marcel+ at 338 PA

Hitting · 2026

239 PA: percentiles need 300+, so values only

xwOBA .284 xwOBA: .284
Swing decisions −0.54 Swing decisions: −0.54
Contact value −1.09 Contact value: −1.09
Bat speed 72.9 Bat speed: 72.9
Squared-up / swing 18% Squared-up / swing: 18%
Blasts / swing 7% Blasts / swing: 7%
EV90 105.3 EV90: 105.3
Barrel % 4.4% Barrel %: 4.4%
Chase % 32.0% Chase %: 32.0%
Zone contact 86.9% Zone contact: 86.9%
Strikeout % 23.8% Strikeout %: 23.8%
Walk % 7.1% Walk %: 7.1%

Platoon splits · swing path

By pitcher handedness

vsPAwOBAxwOBAK%BB%ChaseDecisionsContact
LHP71.318.33115%6%28%−0.44+0.20
RHP168.294.26427%8%33%−0.58−1.58
Attack angle
13.0° (49% in 5–20°)
Attack direction
−7.3°
Swing length
7.4 ft
Fast-swing rate
27%
Pull-air %
17.7%
Hard-hit %
34.8%
Slash · wRC+
.233/.308/.348 · 84

Zone map · 2026

Where he does damage, and where to pitch him

+1.2+2.1−0.40.0−0.3+0.5−2.4+0.1+2.8−1.8+0.8−1.8−1.4−2.0−1.0+0.80.0+3.1+0.9−0.2−0.5−2.5−1.8−0.5−0.8RHB

Does the most damage down over the middle (+3.1 vs. league per 100; 1.4 standard errors on 49 pitches, inside the noise for the best of nine cells).

Weakest up and in (−2.4), but only 1.0 standard errors from average on 36 pitches: no in-zone spot to attack yet.

Runs per 100 pitches vs. an average RHB: better · worse. Catcher’s view · 822 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 Wong: bat path, contact quality and approach

SimilarityPlayerxwOBA’26 WAR’27 proj2027
62J.T. Realmuto PHI · ’91.3160.70.5Signed $15.0M
62Pedro Pagés STL · ’98.2770.50.9Arb
61Cole Carrigg COL · ’02.3161.71.6Pre-arb
61Logan O'Hoppe TEX · ’00.268−0.90.2Arb
59Leody Taveras BAL · ’98.2800.40.2Arb

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 −10.0 +2.5
1B −3.8prior −19.3
Outs Above Average by position
SeasonPosOAARangeArm, DPRunsBatters
20242B00−0.1−0.172
20241B−4−3+0.4−2.6290
20232B−1−10.0−1.027

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)
2024 · 1B In (charging) −1Back 0Toward 3B line −2Toward 1B line −1vs. RHH −1vs. LHH −3

At 1B in 2024, the biggest loss came toward 3B line (−2 outs): a coaching target.

Tools (percentile among MLB fielders)
Arm strength —
Sprint speed 27.6 ft/s · 55th
Zone rating (Keystone expected outs)
SeasonZoneBallsOuts vs. exp.
Too few balls in his zone.

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 0.0 WAR Arbitration $1.4M*
2028 −0.3 WAR Arbitration $1.4M*
2029 −0.7 WAR Free agent
2030 −1.1 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 Sox29314 PA 14 PA · .364/.429/.727 · 1 HR · 14.3% K · 14.3% BB

ABS challenges · 2026

Baseball Savant

As batter 60% 3/5 won · −0.2 runs
As catcher 66% 33/50 won · −0.3 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.