
Players · G · Pitcher · 2021
Junior Guerra
- Age
- 36
- B/T
- R/R
- Height
- 6' 0"
- Weight
- 235 lb
- Number
- #41
- Born
- January 16, 1985 in San Felix, Venezuela
- MLB debut
- June 12, 2015
- dbWAR
- 3.3 12 season(s)
- IP
- 65.1
- ERA
- 6.06
- FIP
- 4.75
- K/9
- 8.4
- FIP−
- 111 100 = avg
Junior Guerra was a relief pitcher for the Los Angeles Angels. In 2021 he struck out 61 batters over 65.1 innings across 41 appearances, going 5-2. His ERA of 6.06 was 42.1% higher than the league average of 4.27 — 19th of 23 on his team, and 489th of 567 among MLB pitchers with 20+ innings. Stripping out defence, his 4.75 FIP suggests he pitched better than his ERA shows. He missed bats on 27.2% of swings (11.8% of every pitch he threw), walked 15.0% of the batters he faced and struck out 19.9%. His 0.1 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.
League context
Percentile among qualified pitchers, 2021.
WAR by season
Pitching
Standard and advanced, by season.
| Trend | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | LAA | 41 | 1 | 65.1 | 5 | 2 | 0 | 67 | 44 | 61 | 46 | 6.06 | 4.75 | 1.73 | 8.4 | 6.3 | 142 | 111 | 0.1 | |
| 2020 | AZ | 25 | 0 | 23.2 | 1 | 2 | 0 | 17 | 8 | 21 | 15 | 3.04 | 4.12 | 1.35 | 8.0 | 5.7 | 68 | 93 | 0.2 | |
| 2019 | MIL | 72 | 0 | 83.2 | 9 | 5 | 3 | 58 | 33 | 77 | 36 | 3.55 | 4.52 | 1.12 | 8.3 | 3.9 | 79 | 100 | 0.5 | |
| 2018 | MIL | 31 | 26 | 141.0 | 6 | 9 | 0 | 143 | 64 | 136 | 55 | 4.09 | 4.24 | 1.40 | 8.7 | 3.5 | 98 | 102 | 1.4 | |
| 2017 | MIL | 21 | 14 | 70.1 | 1 | 4 | 0 | 61 | 40 | 67 | 43 | 5.12 | 6.58 | 1.48 | 8.6 | 5.5 | 117 | 151 | -1.0 | |
| 2016 | MIL | 20 | 20 | 121.2 | 9 | 3 | 0 | 94 | 38 | 100 | 43 | 2.81 | 3.71 | 1.13 | 7.4 | 3.2 | 67 | 88 | 2.1 | |
| 2015 | CWS | 3 | 0 | 4.0 | 0 | 0 | 0 | 7 | 3 | 3 | 1 | 6.75 | 5.63 | 2.00 | 6.8 | 2.3 | 170 | 142 | -0.1 |
Batting
Standard and advanced, by season.
| Trend | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | LAA | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 1 | .000 | .000 | .000 | .000 | .000 | 0.0% | 50.0% | .000 | -0.5 | -119 | -0.0 | |
| 2019 | MIL | 3 | 3 | 1 | 0 | 0 | 0 | 0 | 2 | .333 | .333 | .333 | .000 | 1.000 | 0.0% | 66.7% | .291 | -0.1 | 79 | 0.0 | |
| 2018 | MIL | 24 | 37 | 4 | 0 | 0 | 0 | 0 | 13 | .114 | .114 | .200 | .086 | .182 | 0.0% | 35.1% | .135 | -5.5 | -27 | 0.0 | |
| 2017 | MIL | 12 | 21 | 0 | 0 | 0 | 0 | 0 | 4 | .000 | .000 | .000 | .000 | .000 | 0.0% | 19.0% | .000 | -5.7 | -120 | -0.3 | |
| 2016 | MIL | 19 | 43 | 8 | 0 | 0 | 0 | 0 | 13 | .229 | .229 | .286 | .057 | .364 | 0.0% | 30.2% | .223 | -3.4 | 33 | 0.3 |
Platoon splits
How left- and right-handed hitters fare against him.
| Split | PA | AB | H | HR | BB | SO | AVG | OBP | SLG | wOBA | K% |
|---|---|---|---|---|---|---|---|---|---|---|---|
| vs LHB | 122 | 92 | 28 | 3 | 28 | 19 | .304 | .467 | .457 | .414 | 15.6% |
| vs RHB | 185 | 164 | 39 | 3 | 18 | 42 | .238 | .319 | .335 | .296 | 22.7% |
Spray chart
Where every ball he put in play landed, 2021.
Loading 1 batted balls…
Hot and cold zones
Batting average by pitch location, 2021.
Pitch sequencing
What Junior Guerra throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Junior Guerra throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Sinker | 471 | 93.0 | 2,139 | 45.0% | 15.6% | 118 | .347 | .918 | |
| Four-Seam Fastball | 215 | 92.2 | 2,328 | 44.2% | 24.2% | 38 | .316 | .964 | |
| Splitter | 194 | 84.1 | 1,006 | 41.8% | 45.7% | 47 | .106 | .385 | |
| Curveball | 194 | 80.8 | 2,565 | 37.1% | 33.3% | 26 | .192 | .575 | |
| Slider | 151 | 84.2 | 2,395 | 42.4% | 41.2% | 27 | .148 | .562 |
Head to head
Put Junior Guerra beside up to three others.
Similar players
Nearest 2021 seasons by command, run prevention and role, on rate statistics rather than totals.
wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.



