Players / Player profile
MIA · LF

Heriberto Hernández

Age 26 B/T R/R 5′11″, 195 lb Dominican Republic MLB debut 2025
40-man
  • Miami’s roster as it stands starts at 1B · 475 PA · 1.2 WAR in the role
  • Trade read Available at a price: MIA 38% playoff odds; control through 2031.
  • PNC Park Pittsburgh’s home park: −2.9 runs per 600 PA against an average park (−0.24 wins over 482 PA; his WAR leaves this out); home runs ×0.80 (×0.77 for right-handed hitters as a group). Pulls 22% of his batted balls in the air, top quarter of right-handed hitters. Park Fit →
xwOBA .348 wOBA .342
2026 fWAR 1.7
Projected 2027 WAR 1.6 at 482 PA · 1.2 in his 2027 role

Hitting · 2026 percentiles

vs. MLB hitters with 300+ PA · 502 PA

xwOBA .348 xwOBA: .348, 82nd percentile
Swing decisions +1.20 Swing decisions: +1.20, 91st percentile
Contact value +1.03 Contact value: +1.03, 78th percentile
Bat speed 74.4 Bat speed: 74.4, 80th percentile
Squared-up / swing 23% Squared-up / swing: 23%, 53rd percentile
Blasts / swing 10% Blasts / swing: 10%, 77th percentile
EV90 105.7 EV90: 105.7, 71st percentile
Barrel % 12.7% Barrel %: 12.7%, 86th percentile
Chase % 23.8% Chase %: 23.8%, 85th percentile
Zone contact 78.0% Zone contact: 78.0%, 10th percentile
Strikeout % 26.5% Strikeout %: 26.5%, 20th percentile
Walk % 10.2% Walk %: 10.2%, 69th percentile

Platoon splits · swing path

By pitcher handedness

vsPAwOBAxwOBAK%BB%ChaseDecisionsContact
LHP163.351.40021%9%25%+1.05+2.91
RHP339.337.32329%11%23%+1.28+0.15
Attack angle
13.6° (64% in 5–20°)
Attack direction
−3.5°
Swing length
7.7 ft
Fast-swing rate
43%
Pull-air %
22.3%
Hard-hit %
48.4%
Slash · wRC+
.228/.313/.442 · 106

Zone map · 2026

Where he does damage, and where to pitch him

+1.3−1.4+0.2+0.5+2.4+0.4+3.2−4.0+2.8−1.0+1.0−4.1+0.7+3.9+0.7+0.3+0.5−0.1−0.80.0+1.0+0.2−1.50.0−0.1RHB

Does the most damage middle-away (+3.9 vs. league per 100; 1.9 standard errors on 117 pitches, inside the noise for the best of nine cells).

Weakest middle-in (−4.1), but only 1.9 standard errors from average on 78 pitches: no in-zone spot to attack yet.

Runs per 100 pitches vs. an average RHB: better · worse. Catcher’s view · 1,821 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 Hernández: bat path, contact quality and approach

SimilarityPlayerxwOBA’26 WAR’27 proj2027
65Kazuma Okamoto TOR · ’96.3283.01.7Signed $17.3M
61Corbin Carroll AZ · ’00.3424.24.4Signed $12.6M
60Ben Rice NYY · ’99.3784.22.8Pre-arb
57Bryce Eldridge SF · ’04.3591.81.8Pre-arb
55Joc Pederson TEX · ’92.3441.40.4Free 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
LF +0.6 −6.9
RF +0.1 −10.4
1B +1.1prior −14.4
Outs Above Average by position
SeasonPosOAARangeArm, DPRunsBatters
2026RF00−0.1−0.1122
2026LF+3+2−1.6+0.33,973
2025RF+2+2−0.4+1.6360
2025LF+2+2−1.3+0.71,122

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 LF)
2025 · LF2026 · LF In (charging) +1+2Back +20Toward 3B line 0+2Toward 1B line +2−1vs. RHH +10vs. LHH +4+2
Tools (percentile; arm among LFs)
Arm at LF 91.0 mph · 93rd
Sprint speed 28.3 ft/s · 77th
Reaction +0.5 ft · 67th
Burst +1.1 ft · 80th
Route −0.1 ft · 39th
Catch difficulty (latest season)
PlayMadeChancesRate
★★★★★0200%
★★★★030%
★★★91090%
★★101283%
★242596%
Zone rating (Keystone expected outs)
SeasonZoneBallsOuts vs. exp.
2026LF376+6.5
2025RF46+0.2
2025LF113+2.5

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 1.6 WAR Pre-arb $780K*
2028 1.5 WAR Pre-arb $803K*
2029 1.3 WAR Arbitration $3.1M*
2030 1.0 WAR Arbitration $5.8M*

* projected arbitration or minimum salary. Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevelLevelTeamAgeGPA / IPPA / IP ·Line
2026AAAAAAJacksonville Jumbo Shrimp26525 PA 25 PA · .273/.360/.364 · 0 HR · 4.0% K · 12.0% BB
2025AAAAAAJacksonville Jumbo Shrimp2541163 PA 163 PA · .220/.319/.454 · 9 HR · 35.0% K · 11.7% BB

ABS challenges · 2026

Baseball Savant

As batter 29% 4/14 won · −0.5 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.