Players / Player profile
SEA · SS

Colt Emerson

Age 21 B/T L/R 6′0″, 195 lb USA MLB debut 2026
40-man FV 55 · #1 in org
  • Seattle’s roster as it stands part-time SS · 322 PA (SS 322) · 0.6 WAR in the role
  • Injured list Ended 2026 on the 60-day IL: Left wrist tendon inflammation (since Aug 14)
  • Trade read Unlikely to be traded: Extended in Mar 2026 (8 yr, $95M (2026-33), 2034 club option): clubs rarely move a player they just committed to.
xwOBA .248 wOBA .260
2026 fWAR −0.1
Projected 2027 WAR 0.5 at 321 PA · 0.6 in his 2027 role

Hitting · 2026

242 PA: percentiles need 300+, so values only

xwOBA .248 xwOBA: .248
Swing decisions −0.95 Swing decisions: −0.95
Contact value −1.59 Contact value: −1.59
Bat speed 72.6 Bat speed: 72.6
Squared-up / swing 13% Squared-up / swing: 13%
Blasts / swing 4% Blasts / swing: 4%
EV90 102.1 EV90: 102.1
Barrel % 5.0% Barrel %: 5.0%
Chase % 38.9% Chase %: 38.9%
Zone contact 73.6% Zone contact: 73.6%
Strikeout % 34.3% Strikeout %: 34.3%
Walk % 6.2% Walk %: 6.2%

Platoon splits · swing path

By pitcher handedness

vsPAwOBAxwOBAK%BB%ChaseDecisionsContact
LHP81.276.28635%5%34%−0.28−0.28
RHP161.252.23034%7%41%−1.27−2.16
Attack angle
10.1° (55% in 5–20°)
Attack direction
+2.0°
Swing length
7.2 ft
Fast-swing rate
24%
Pull-air %
15.6%
Hard-hit %
31.2%
Slash · wRC+
.190/.246/.335 · 67

Zone map · 2026

Where he does damage, and where to pitch him

−1.1−0.4+0.3−4.5−1.9+0.3+1.7−2.1+5.6−0.6−0.6−1.6−2.5−0.7−0.4−0.3+0.5−0.7−0.3−1.1+0.1+0.10.0−2.3−1.7LHB

Does the most damage up and in (+5.6 vs. league per 100; 2.4 standard errors on 37 pitches, inside the noise for the best of nine cells).

Weakest middle-middle (−2.5), but only 1.1 standard errors from average on 61 pitches: no in-zone spot to attack yet.

Runs per 100 pitches vs. an average LHB: better · worse. Catcher’s view · 888 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 Emerson: bat path, contact quality and approach

SimilarityPlayerxwOBA’26 WAR’27 proj2027
61Josh Lowe LAA · ’98.2850.60.4Arb
52Carlos Narváez BAL · ’98.267−0.60.8Pre-arb
49Trevor Story BOS · ’92.2480.20.8Signed $25.0M
42Ezequiel Tovar COL · ’01.279−0.41.2Signed $8.2M
37Christian Koss SF · ’98.2410.00.3—

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
SS −1.5 +6.0
2B −1.0prior −1.5
3B −1.9 −2.4
Outs Above Average by position
SeasonPosOAARangeArm, DPRunsBatters
20263B−2−1+0.1−0.9520
2026SS−3−2+0.3−1.71,921

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 SS)
2026 · SS In (charging) −2Back +1Toward 3B line 0Toward 1B line −4vs. RHH −5vs. LHH 0

At SS in 2026, the biggest loss came toward 1B line (−4 outs): a coaching target.

Tools (percentile; arm among SSs)
Arm at SS 81.6 mph · 26th
Sprint speed 27.0 ft/s · 39th
Zone rating (Keystone expected outs)
SeasonZoneBallsOuts vs. exp.
2026SS178−8.9

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 0.5 WAR Guaranteed $3.0M
2028 0.8 WAR Guaranteed $10.0M
2029 1.1 WAR Guaranteed $13.0M
2030 1.3 WAR Guaranteed $15.0M

Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevelLevelTeamAgeGPA / IPPA / IP ·Line
2026AAAAAATacoma Rainiers2038169 PA 169 PA · .255/.347/.469 · 7 HR · 27.2% K · 10.1% BB
2025A+A+Everett AquaSox1990412 PA 412 PA · .281/.388/.453 · 11 HR · 16.5% K · 13.1% BB
2025AAAAArkansas Travelers1934161 PA 161 PA · .282/.360/.430 · 3 HR · 19.3% K · 8.7% BB
2025AAAAAATacoma Rainiers19627 PA 27 PA · .364/.444/.727 · 2 HR · 22.2% K · 11.1% BB

FanGraphs: FV 55 · ETA 2026 · #13 overall. Public pitch tracking exists only at Triple-A and some Florida State League parks.

ABS challenges · 2026

Baseball Savant

As batter 33% 2/6 won · 0.0 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.