Players · L · Pitcher · 2013 regular season
Chia-Jen Lo
- Age
- 27
- B/T
- R/R
- Height
- 5' 11"
- Weight
- 205 lb
- Number
- #63
- Born
- April 7, 1986 in Pingtung County, Taiwan
- MLB debut
- July 31, 2013
- dbWAR
- -.1 Regular season, 1 season(s)
- IP
- 19.1
- ERA
- 4.19
- FIP
- 4.75
- K/9
- 7.4
- FIP−
- 123 100 = avg
Chia-Jen Lo was a relief pitcher for the Houston Astros. In 2013 he struck out 16 batters over 19.1 innings across 19 appearances, going 0-3. His ERA of 4.19 was 8.4% higher than the league average of 3.87. Stripping out defence, his 4.75 FIP suggests that his ERA had some help behind him. He missed bats on 17.7% of swings (8.4% of every pitch he threw), walked 15.5% of the batters he faced and struck out 19.0%. 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, 2013 regular season.
Pitching Regular season
Standard and advanced, by season. Regular-season games only.
| Trend | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2013 | HOU | 19 | 0 | 19.1 | 0 | 3 | 2 | 14 | 9 | 16 | 13 | 4.19 | 4.75 | 1.40 | 7.4 | 6.1 | 108 | 123 | -0.1 | — |
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 | 47 | 39 | 5 | 1 | 8 | 7 | .128 | .277 | .205 | .241 | 14.9% |
| vs RHB | 37 | 30 | 9 | 1 | 5 | 9 | .300 | .389 | .400 | .355 | 24.3% |
Pitch sequencing
What Chia-Jen Lo throws in each count, and what he follows each pitch with. Select any cell for the breakdown.
Select a count to see exactly what Chia-Jen Lo throws in it.
Pitch arsenal
What he throws, how hard, how often it misses, and what hitters do with it.
| Four-Seam Fastball | 248 | 94.1 | 1,990 | 52.4% | 19.5% | 46 | .152 | .593 | |
| Curveball | 78 | 80.0 | 1,780 | 29.5% | 11.1% | 22 | .318 | .693 | |
| Changeup | 12 | 85.7 | 1,590 | 33.3% | 25.0% | 2 | — | — |
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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.