Mike Mason career ERA
4.53Career Regular Season
Mike Mason has a career ERA of 4.53 over 7 regular seasons.
- Best season on file: 3.61 in 1984.
- Most recent: 10.80 in 1988.
Figures come from ESPN's box scores and were last read on September 22, 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1982 |  TEX | 4 | 1 | 2 | 5.09 | 23.0 | 8 | 9 | 1.30 | 0 |
| 1983 | TEX | 5 | 0 | 2 | 5.91 | 10.2 | 9 | 6 | 1.50 | 0 |
| 1984 | TEX | 36 | 9 | 13 | 3.61 | 184.1 | 113 | 51 | 1.14 | 0 |
| 1985 | TEX | 38 | 8 | 15 | 4.83 | 179.0 | 92 | 73 | 1.59 | 0 |
| 1986 | TEX | 27 | 7 | 3 | 4.33 | 135.0 | 85 | 56 | 1.41 | 0 |
| 1987 |  TEX/CHC | 25 | 4 | 3 | 5.64 | 67.0 | 49 | 45 | 1.87 | 0 |
| 1988 |  MIN | 5 | 0 | 1 | 10.80 | 6.2 | 7 | 9 | 2.55 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV