Players · J · Pitcher · 2015
Casey Janssen
- Age
- 34
- B/T
- R/R
- Height
- 6' 4"
- Weight
- 210 lb
- Number
- #44
- Born
- September 17, 1981 in Orange, CA, United States
- MLB debut
- April 27, 2006
- dbWAR
- .2 1 season(s)
- IP
- 40.0
- ERA
- 4.95
- FIP
- 4.08
- K/9
- 6.1
- FIP−
- 103 100 = avg
Casey Janssen was a relief pitcher for the Washington Nationals. In 2015 he struck out 27 batters over 40.0 innings across 48 appearances, going 2-5. His ERA of 4.95 was 24.9% higher than the league average of 3.96 — the worst on his team, and 407th of 513 among MLB pitchers with 20+ innings. Stripping out defence, his 4.08 FIP suggests he pitched better than his ERA shows. He missed bats on 16.5% of swings (7.8% of every pitch he threw), walked 4.8% of the batters he faced and struck out 16.3%. His 0.2 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, 2015.
Pitching
Standard and advanced, by season.
| Trend | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2015 | WSH | 48 | 0 | 40.0 | 2 | 5 | 0 | 38 | 22 | 27 | 8 | 4.95 | 4.08 | 1.15 | 6.1 | 1.8 | 125 | 103 | 0.2 | — |
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 | 60 | 51 | 9 | 1 | 6 | 10 | .176 | .263 | .294 | .239 | 16.7% |
| vs RHB | 107 | 102 | 29 | 4 | 3 | 17 | .284 | .308 | .500 | .343 | 15.9% |
Pitch sequencing
What Casey Janssen throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Casey Janssen throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Four-Seam Fastball | 282 | 88.3 | 1,719 | 45.7% | 16.2% | 64 | .172 | .546 | |
| Cutter | 148 | 87.6 | 1,334 | 41.9% | 13.9% | 44 | .250 | .692 | |
| Curveball | 90 | 73.7 | 1,665 | 47.8% | 21.8% | 27 | .259 | .730 | |
| Slider | 44 | 83.8 | 755 | 43.2% | 13.3% | 14 | — | — | |
| Changeup | 16 | 81.3 | 1,273 | 25.0% | 33.3% | 3 | — | — | |
| Sinker | 14 | 88.9 | 1,632 | 42.9% | 0.0% | 2 | — | — | |
| Intentional Ball | 12 | 79.8 | 1,555 | 0.0% | — | 0 | — | — |
Head to head
Put Casey Janssen beside up to three others.
Similar players
Nearest 2015 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.