Players / Player profile
STL · 2B

JJ Wetherholt

Age 24 B/T L/R 5′9″, 190 lb USA MLB debut 2026
40-man FV 55 · #1 in org
  • St. Louis’ roster as it stands starts at 2B · 502 PA · 3.8 WAR in the role
  • Injured list 2026: Right wrist tendinitis (Aug 30–Sep 16)
  • Trade read Unlikely to be traded: Extended in Jul 2026 (8 yr, $112.5M (2027-34)): clubs rarely move a player they just committed to.
xwOBA .351 wOBA .326
2026 fWAR 4.6
Projected 2027 WAR 3.5 at 510 PA · 3.8 in his 2027 role

Hitting · 2026 percentiles

vs. MLB hitters with 300+ PA · 617 PA

xwOBA .351 xwOBA: .351, 86th percentile
Swing decisions +0.84 Swing decisions: +0.84, 83rd percentile
Contact value +0.87 Contact value: +0.87, 73rd percentile
Bat speed 71.9 Bat speed: 71.9, 49th percentile
Squared-up / swing 26% Squared-up / swing: 26%, 82nd percentile
Blasts / swing 8% Blasts / swing: 8%, 44th percentile
EV90 102.4 EV90: 102.4, 26th percentile
Barrel % 7.4% Barrel %: 7.4%, 47th percentile
Chase % 21.2% Chase %: 21.2%, 94th percentile
Zone contact 85.4% Zone contact: 85.4%, 55th percentile
Strikeout % 16.9% Strikeout %: 16.9%, 76th percentile
Walk % 10.1% Walk %: 10.1%, 68th percentile

Platoon splits · swing path

By pitcher handedness

vsPAwOBAxwOBAK%BB%ChaseDecisionsContact
LHP219.308.35116%10%22%+1.10+1.85
RHP398.337.35117%10%21%+0.71+0.34
Attack angle
11.8° (64% in 5–20°)
Attack direction
+6.0°
Swing length
7.5 ft
Fast-swing rate
18%
Pull-air %
13.6%
Hard-hit %
45.2%
Slash · wRC+
.242/.339/.365 · 101

Zone map · 2026

Where he does damage, and where to pitch him

+0.1+1.5+1.30.0+2.1+1.2+0.1−0.3+1.2+1.1−0.9−1.6+0.6−4.4−1.3+1.2−1.5−4.9−0.3+2.1+1.8+0.4+1.2+0.5+1.4LHB

Does the most damage up and in (+1.2 vs. league per 100; 0.6 standard errors on 83 pitches, inside the noise for the best of nine cells).

Weakest down over the middle (−4.9; 2.7 standard errors below average on 160 pitches). Pitchers should attack here.

Runs per 100 pitches vs. an average LHB: better · worse. Catcher’s view · 2,257 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 Wetherholt: bat path, contact quality and approach

SimilarityPlayerxwOBA’26 WAR’27 proj2027
63Xander Bogaerts SD · ’92.3252.61.6Signed $25.5M
57Mike Yastrzemski ATL · ’90.3090.60.4Signed $10.0M
57Andrew Vaughn MIL · ’98.3291.30.6Arb
56Kyle Tucker LAD · ’97.3330.92.6Signed $87.0M
56J.P. Crawford SEA · ’95.3201.21.2Free agent

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
2B +14.5 +17.0
3B +12.5prior +12.0
SS +7.3 +11.8
Outs Above Average by position
SeasonPosOAARangeArm, DPRunsBatters
2026SS00+0.4+0.4431
20262B+25+19+4.1+23.14,723

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 2B)
2026 · 2B In (charging) +8Back +3Toward 3B line +12Toward 1B line +2vs. RHH +10vs. LHH +15
Tools (percentile; arm among 2Bs)
Arm at 2B 78.2 mph · 65th
Sprint speed 27.6 ft/s · 55th
Zone rating (Keystone expected outs)
SeasonZoneBallsOuts vs. exp.
2026SS42−0.8
20262B514+6.0

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 3.5 WAR Guaranteed $2.8M
2028 3.7 WAR Guaranteed $4.3M
2029 3.8 WAR Guaranteed $7.8M
2030 3.8 WAR Guaranteed $12.8M

Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevelLevelTeamAgeGPA / IPPA / IP ·Line
2025AAAASpringfield Cardinals2262275 PA 275 PA · .300/.425/.466 · 7 HR · 14.5% K · 16.0% BB
2025AAAAAAMemphis Redbirds2247221 PA 221 PA · .314/.416/.562 · 10 HR · 14.9% K · 12.7% BB

FanGraphs: FV 55 · ETA 2026 · #14 overall. Public pitch tracking exists only at Triple-A and some Florida State League parks.

ABS challenges · 2026

Baseball Savant

As batter 56% 5/9 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.