Jake Mangum
- Winter Plan fourth outfielder · 476 PA (RF 256, CF 220) · 1.1 WAR in the role
- Injured list 2026: Left hamstring strain (May 8–May 17)
- PNC Park Pittsburgh’s home park: +1.4 runs per 600 PA against an average park (+0.11 wins over 476 PA; his WAR leaves this out); home runs ×0.91 (×0.92 for right-handed hitters as a group). Park Fit →
Development · trends & plan
Tracked levels only. Monthly values; gaps mark the offseason. The number beside each line is its last month, with that month’s sample (faded under 50 PA or 150 pitches), not the season.
Plan for 2027
- 1 Approach medium ask Swing less at pitches out of the zone
Chases 45% of pitches out of the zone in 2026 (99th percentile for chasing). The Hitting Lab’s regressed swing-decision value is −1.42 per 100 pitches (2025–26 pooled; about −0.70 runs), past its −0.55 line, and chasing is the weak part (worse than 98% of MLB regulars, 2025–26). With no plan a chase rate like his drifts toward the median on its own (about 44% next year); the target beats that, and his earlier seasons count on 2026’s league basis (the 2026 zone raised chase rates league-wide).
Chase rate: 45% target 41% no plan ≈ 44% ≈12.9 runs/season (what his swing decisions cost a season vs. an average hitter at his 2027 plate appearances, on the Hitting Lab’s regressed value) Check at the end of the 2027 season · noise then ±2% Hitting Lab · decisions
Each goal is checked when his sample can tell the target from noise: the 2027 All-Star break if it can by then, else season’s end or the sample it needs; if no single season can, it’s a lean. Coach card
Trends · MLB
Hitting · 2026 percentiles
vs. MLB hitters with 300+ PA · 478 PA
Platoon splits · swing path
By pitcher handedness
| vs | PA | wOBA | xwOBA | K% | BB% | Chase | Decisions | Contact |
|---|---|---|---|---|---|---|---|---|
| LHP | 134 | .313 | .289 | 20% | 4% | 46% | −1.92 | −0.88 |
| RHP | 344 | .332 | .297 | 19% | 5% | 45% | −1.64 | −0.68 |
- Attack angle
- 4.3° (35% in 5–20°)
- Attack direction
- +10.1°
- Swing length
- 6.7 ft
- Fast-swing rate
- 4%
- Pull-air %
- 10.3%
- Hard-hit %
- 28.2%
- Slash · wRC+
- .276/.331/.363 · 91
Zone map · 2026
Where he does damage, and where to pitch him
Does the most damage middle-away (+2.9 vs. league per 100; 1.3 standard errors on 51 pitches, inside the noise for the best of nine cells).
Weakest down over the middle (−3.1), but only 1.4 standard errors from average on 67 pitches: no in-zone spot to attack yet.
Runs per 100 pitches vs. an average LHB: better · worse. Catcher’s view · 1,147 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 Mangum: bat path, contact quality and approach
| Similarity | Player | xwOBA | ’26 WAR | ’27 proj | 2027 |
|---|---|---|---|---|---|
| 58 | Nathan Church STL · ’00 | .284 | 0.4 | 0.6 | Pre-arb |
| 56 | Andrés Giménez TOR · ’98 | .276 | 2.8 | 1.9 | Signed $23.6M |
| 51 | Ceddanne Rafaela BOS · ’00 | .288 | 4.1 | 3.0 | Signed $3.8M |
| 50 | Justin Crawford PHI · ’04 | .289 | 0.2 | 0.7 | Pre-arb |
| 45 | Alika Williams ATH · ’99 | .250 | 1.1 | 0.8 | Pre-arb |
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.
| Season | Pos | OAA | Range | Arm, DP | Runs | Batters |
|---|---|---|---|---|---|---|
| 2026 | RF | −1 | −1 | 0.0 | −1.0 | 690 |
| 2026 | LF | −1 | −1 | −0.1 | −1.1 | 1,394 |
| 2026 | CF | +1 | +1 | −0.1 | +0.9 | 2,164 |
| 2025 | RF | +1 | +1 | −0.2 | +0.8 | 945 |
| 2025 | CF | +6 | +5 | −0.3 | +4.7 | 1,146 |
| 2025 | LF | −1 | −1 | −0.4 | −1.4 | 1,834 |
Runs = range plus his arm and double-play runs spread over his positions by outs (Fielding Run Value, from 2023): what the rating counts.
At CF in 2026, the biggest loss came in (charging) (−2 outs): a coaching target.
Tools (percentile; arm among CFs)| Play | Made | Chances | Rate |
|---|---|---|---|
| ★★★★★ | 1 | 22 | 5% |
| ★★★★ | 1 | 5 | 20% |
| ★★★ | 6 | 8 | 75% |
| ★★ | 22 | 27 | 81% |
| ★ | 24 | 25 | 96% |
| Season | Zone | Balls | Outs vs. exp. |
|---|---|---|---|
| 2026 | RF | 57 | +1.5 |
| 2026 | LF | 134 | +0.2 |
| 2026 | CF | 247 | +2.0 |
| 2025 | RF | 94 | −1.5 |
| 2025 | LF | 169 | +1.7 |
| 2025 | CF | 129 | +8.7 |
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.
Contract & projection
Club control (RosterResource) · Keystone projected WAR
* projected arbitration or minimum salary. Contract Studio →
Minor leagues
MLB Stats API · public box-score data
| SeasonLevel | Level | Team | Age | G | PA / IP | PA / IP ·Line |
|---|---|---|---|---|---|---|
| 2025AAA | AAA | Durham Bulls | 29 | 5 | 22 PA | 22 PA · .444/.545/.500 · 0 HR · 13.6% K · 18.2% BB |
| 2025ROK | ROK | FCL Rays | 29 | 1 | 3 PA | 3 PA · .333/.333/.333 · 0 HR · 0.0% K · 0.0% BB |
ABS challenges · 2026
Baseball Savant