Leo Rosales ERA in 2010
7.162010 Regular Season
Leo Rosales posted a 7.16 ERA in the 2010 regular season.
- Leo Rosales' highest ERA of the 3 seasons on file; the best is 4.20 in 2008.
- Up 2.40 from 4.76 in 2009.
Best of 3 regular seasons, 2008 through 2010. 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 2008 |  ARI | 27 | 1 | 1 | 4.20 | 30.0 | 18 | 15 | 1.57 | 0 |
| 2009 | ARI | 33 | 2 | 1 | 4.76 | 45.1 | 31 | 12 | 1.15 | 0 |
| 2010 | ARI | 16 | 2 | 0 | 7.16 | 16.1 | 12 | 9 | 2.08 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV