Wei-Yin Chen career ERA
4.18Career Regular Season
Wei-Yin Chen has a career ERA of 4.18 over 8 regular seasons.
- Best season on file: 3.34 in 2015.
- Most recent: 6.59 in 2019.
Average of 8 regular seasons, 2012 through 2019. Figures come from ESPN's box scores and were last read on September 21, 2026.
| GP: Games the player appeared in, however briefly. | W: Games in which this pitcher was credited with the win. | L: Games in which this pitcher was charged with the loss. | ERA: Earned runs allowed per nine innings pitched — lower is better. Under 3.00 is excellent. | IP: Innings pitched. The decimal counts outs, so 6.2 is six innings and two more outs. | K: Batters this pitcher struck out. | BB: Times the batter reached first base on four balls. | WHIP: Walks and hits allowed per inning pitched — lower is better. Around 1.00 is elite. | SV: Games finished by protecting a narrow lead to the last out. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 2012 |  BAL | 32 | 12 | 11 | 4.02 | 192.2 | 154 | 57 | 1.26 | 0 |
| 2013 | BAL | 23 | 7 | 7 | 4.07 | 137.0 | 104 | 39 | 1.32 | 0 |
| 2014 | BAL | 31 | 16 | 6 | 3.54 | 185.2 | 136 | 35 | 1.23 | 0 |
| 2015 | BAL | 31 | 11 | 8 | 3.34 | 191.1 | 153 | 41 | 1.22 | 0 |
| 2016 |  MIA | 22 | 5 | 5 | 4.96 | 123.1 | 100 | 24 | 1.28 | 0 |
| 2017 | MIA | 9 | 2 | 1 | 3.82 | 33.0 | 25 | 9 | 1.03 | 0 |
| 2018 | MIA | 26 | 6 | 12 | 4.79 | 133.1 | 111 | 47 | 1.34 | 0 |
| 2019 | MIA | 45 | 0 | 1 | 6.59 | 68.1 | 63 | 18 | 1.54 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV