Luis
Guerrero
PAge : 26Throws : R
#31
Luis Guerrero
#31P
Height : 6' 0" · Weight : 98 kg · Bats : R · Throws : R · MLB debut : 2024-09-08
Born in : Bani, Dominican Republic
MLB record
| Year | Team | PJ | V | D | MPM | MJ | RB | WHIP |
|---|---|---|---|---|---|---|---|---|
| 2025 | Boston Red Sox | 13 | 0 | 1 | 4.15 | 17.1 | 10 | 1.33 |
| 2024 | Boston Red Sox | 9 | 0 | 0 | 0.00 | 10.0 | 9 | 0.80 |
| Career totals | 22 | 0 | 1 | 2.63 | 27.1 | 19 | 1.13 | |
Advanced stats, 2025Relief pitcherMLB stats →
ERA
4.15
FIP
4.40
xFIP
5.92
ERA-
99
WHIP
1.33
K%
13.9 %
BB%
19.4 %
Strikeouts
10
Innings
17.3
Wins
0
Stats: MLB (statsapi) and Baseball Savant.
2026 projectionMLB trends →
Projected WAR
0.0
Strikeouts
8
2025 WAR
0.0
This season's pace, over the average of the last two workloads, adjusted for next year's age.
Trend
→ Stable (0)
- 20250.0 WAR · 0.0 per full season
Outlook, age included
+25 · 24 y.o. · usually still improving
It is only a projection. It knows nothing about injuries, trades or role changes.
Player ratings, 2025All ratings →
Ratings from 0 to 100, computed from Statcast and MLB stats over four seasons, never by hand. 75 = established regular, 87 = 90th percentile, 95+ = elite.
OV · Overall
59
Replacement or prospect
- VEL
- Velocity
- 80
- STF
- Stuff
- 53
- CTL
- Control
- 45
- CNT
- Contact allowed
- 74
- STA
- Stamina
- —
- DUR
- Durability
- 45
- EX
- Experience
- 37
Why these ratings?Hide details
- VEL — Velocity : Fastball velocity
- STF — Stuff : Strikeouts, K − BB
- CTL — Control : Walks avoided
- CNT — Contact allowed : xwOBA, barrels and hard-hit balls allowed
- STA — Stamina : Innings per start and innings pitched
- DUR — Durability : Games played over several seasons
- EX — Experience : Seasons in the majors
WAR and PAL Rating, 2025How we rate →
WAR is fWAR (FanGraphs' version, distributed through MLB's API): wins added above a replacement player. PAL Rating scores performance from 0 to 100 against regulars in the same role (50 = median).
PAL: dimensions
A pitcher's WAR
Computed by MLB from FIP (strikeouts, walks, home runs). FIP: 4.40 · RA9-WAR: 0.1
StatcastStatcast leaderboards →
MLB's tracking of every ball, 2025 season. The percentile ranks the player among regulars in the role: 90th means better than 90% of them.
Fastball
96.5 mi/h
76th percentile
K%
13.9 %
3th percentile
BB%
19.4 %
0th percentile
xERA
6.31
3th percentile
xwOBA allowed
.379
3th percentile
Barrels allowed
6.3 %
73th percentile
Game log, 2025
| Date | Opponent | IP | H | ER | BB | SO | ERA |
|---|---|---|---|---|---|---|---|
| Jun 27 | vs TOR | 0.1 | 2 | 2 | 1 | 0 | 4.15 |
| Jun 25 | @ LAA | 0.2 | 2 | 2 | 2 | 1 | 3.18 |
| Jun 23 | @ LAA | 2.0 | 0 | 0 | 1 | 3 | 2.20 |
| Jun 21 | @ SF | 1.0 | 0 | 0 | 0 | 1 | 2.51 |
| Jun 17 | @ SEA | 1.0 | 0 | 0 | 1 | 0 | 2.70 |
| Jun 14 | vs NYY | 0.1 | 1 | 2 | 2 | 0 | 2.92 |
| Jun 9 | vs TB | 2.1 | 1 | 1 | 2 | 0 | 1.50 |
| Jun 4 | vs LAA | 2.1 | 0 | 0 | 2 | 1 | 0.93 |
| Jun 2 | vs LAA | 2.0 | 0 | 0 | 0 | 0 | 1.23 |
| May 24 | vs BAL | 1.1 | 2 | 1 | 3 | 1 | 1.69 |