Pitcher · 2017
Dayan Díaz
- Age
- 28
- B/T
- R/R
- Height
- 5' 10"
- Weight
- 195 lb
- Born
- February 10, 1989 in Cartagena, Colombia
- MLB debut
- May 22, 2016
- dbWAR
- -.2 2 season(s)
- IP
- 13.0
- ERA
- 9.00
- FIP
- 4.00
- K/9
- 13.8
- FIP−
- 92 100 = avg
Dayan Díaz was a relief pitcher for the Houston Astros. In 2017 he struck out 20 batters over 13.0 innings across 10 appearances, going 1-1. His ERA of 9.00 was 106.5% higher than the league average of 4.36. Stripping out defence, his 4.00 FIP suggests he pitched better than his ERA shows. He missed bats on 31.2% of swings (14.6% of every pitch he threw), walked 6.9% of the batters he faced and struck out 34.5%. 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.
Pitching
Standard and advanced, by season.
| Trend | |||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2017 | 10 | 1 | 13.0 | 1 | 1 | 0 | 17 | 13 | 20 | 4 | 9.00 | 4.00 | 1.62 | 13.8 | 2.8 | 207 | 92 | 0.1 | |
| 2016 | 6 | 0 | 6.2 | 0 | 0 | 0 | 10 | 7 | 3 | 7 | 9.45 | 9.30 | 2.55 | 4.0 | 9.4 | 226 | 222 | -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 | 21 | 18 | 5 | 1 | 3 | 9 | .278 | .381 | .500 | .382 | 42.9% |
| vs RHB | 37 | 36 | 12 | 2 | 1 | 11 | .333 | .351 | .639 | .417 | 29.7% |
Pitch sequencing
What Dayan Díaz throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Dayan Díaz throws in it.
Pitch arsenal
What he throws, how hard, and how often it misses in 2017.
| Four-Seam Fastball | 149 | 94.4 | 2,400 | 58.4% | 30.4% | |
| Slider | 64 | 87.3 | 2,564 | 46.9% | 33.3% | |
| Changeup | 43 | 85.8 | 1,475 | 34.9% | 38.9% | |
| Sinker | 11 | 93.7 | 2,347 | 54.5% | 0.0% |
Head to head
Put Dayan Díaz beside up to three others.
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.