Players · A · Pitcher · 2015
Jeremy Affeldt
- Age
- 36
- B/T
- L/L
- Height
- 6' 4"
- Weight
- 225 lb
- Number
- #41
- Born
- June 6, 1979 in Phoenix, AZ, United States
- MLB debut
- April 6, 2002
- dbWAR
- -.5 2 season(s)
- IP
- 35.1
- ERA
- 5.86
- FIP
- 5.51
- K/9
- 5.3
- FIP−
- 139 100 = avg
Jeremy Affeldt was a relief pitcher for the San Francisco Giants. In 2015 he struck out 21 batters over 35.1 innings across 52 appearances, going 2-2. His ERA of 5.86 was 47.9% higher than the league average of 3.96 — the worst on his team, and 463rd of 513 among MLB pitchers with 20+ innings. Stripping out defence, his 5.51 FIP suggests he pitched better than his ERA shows. He missed bats on 15.0% of swings (6.4% of every pitch he threw), walked 8.6% of the batters he faced and struck out 12.9%. His -0.5 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 | SF | 52 | 0 | 35.1 | 2 | 2 | 0 | 43 | 23 | 21 | 14 | 5.86 | 5.51 | 1.61 | 5.3 | 3.6 | 148 | 139 | -0.5 | — |
Batting
Standard and advanced, by season.
| Trend | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2015 | SF | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 2 | .000 | .000 | .000 | .000 | — | 0.0% | 100.0% | .000 | -0.5 | -129 | -0.0 | — |
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 | 73 | 67 | 19 | 2 | 5 | 12 | .284 | .342 | .418 | .337 | 16.4% |
| vs RHB | 90 | 80 | 24 | 4 | 9 | 9 | .300 | .378 | .487 | .373 | 10.0% |
Hot and cold zones
Batting average by pitch location, 2015.
Pitch sequencing
What Jeremy Affeldt throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Jeremy Affeldt throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Sinker | 375 | 90.4 | 2,345 | 40.8% | 6.5% | 104 | .356 | .975 | |
| Curveball | 132 | 74.5 | 1,694 | 37.1% | 35.4% | 31 | .129 | .414 | |
| Changeup | 48 | 86.1 | 1,799 | 35.4% | 36.4% | 12 | — | — |
Head to head
Put Jeremy Affeldt 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.