
Players · D · Pitcher · 2017 regular season
Jumbo Diaz
- Age
- 33
- B/T
- R/R
- Height
- 6' 4"
- Weight
- 315 lb
- Number
- #70
- Born
- February 27, 1984 in La Romana, Dominican Republic
- MLB debut
- June 20, 2014
- dbWAR
- .7 Regular season, 5 season(s)
- IP
- 30.0
- ERA
- 5.70
- FIP
- 4.52
- K/9
- 8.4
- FIP−
- 104 100 = avg
Jumbo Diaz was a relief pitcher for the Tampa Bay Rays. In 2017 he struck out 28 batters over 30.0 innings across 31 appearances, going 1-4. His ERA of 5.70 was 30.8% higher than the league average of 4.36 — the second worst on his team, and 443rd of 527 among MLB pitchers with 20+ innings. Stripping out defence, his 4.52 FIP suggests he pitched better than his ERA shows. He missed bats on 25.6% of swings (12.6% of every pitch he threw), walked 11.0% of the batters he faced and struck out 20.6%. 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, 2017 regular season.
WAR by season
Pitching Regular season
Standard and advanced, by season. Regular-season games only.
Batting Regular season
Standard and advanced, by season. Regular-season games only.
| Trend | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2016 | CIN | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | 0.0% | 0.0% | .000 | -0.3 | -118 | -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 | 44 | 40 | 12 | 3 | 4 | 11 | .300 | .364 | .575 | .390 | 25.0% |
| vs RHB | 92 | 78 | 20 | 1 | 11 | 17 | .256 | .341 | .397 | .320 | 18.5% |
Pitch sequencing
What Jumbo Diaz throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Jumbo Diaz throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Slider | 285 | 87.1 | 2,357 | 49.8% | 31.6% | 65 | .200 | .593 | |
| Four-Seam Fastball | 201 | 97.0 | 2,257 | 50.7% | 21.0% | 41 | .341 | 1.021 | |
| Sinker | 52 | 96.5 | 2,200 | 46.2% | 16.1% | 11 | — | — |
Compare Jumbo Diaz with…
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Similar players
Nearest 2017 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.



