Frank Castillo career WHIP
1.36Career Regular Season
Frank Castillo has a career WHIP of 1.36 over 13 regular seasons.
- Best season on file: 1.18 in 1992.
- Most recent: 2.08 in 2005.
Average of 13 regular seasons, 1991 through 2005. 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. | ||
|---|---|---|---|---|---|---|---|---|---|---|
| 1991 |  CHC | 18 | 6 | 7 | 4.35 | 111.2 | 73 | 33 | 1.25 | 0 |
| 1992 | CHC | 33 | 10 | 11 | 3.46 | 205.1 | 135 | 63 | 1.18 | 0 |
| 1993 | CHC | 29 | 5 | 8 | 4.84 | 141.1 | 84 | 39 | 1.42 | 0 |
| 1994 | CHC | 4 | 2 | 1 | 4.30 | 23.0 | 19 | 5 | 1.30 | 0 |
| 1995 | CHC | 29 | 11 | 10 | 3.21 | 188.0 | 135 | 52 | 1.23 | 0 |
| 1996 | CHC | 33 | 7 | 16 | 5.28 | 182.1 | 139 | 46 | 1.40 | 0 |
| 1997 |  CHC/COL | 34 | 12 | 12 | 5.42 | 184.1 | 126 | 69 | 1.57 | 0 |
| 1998 |  DET | 27 | 3 | 9 | 6.83 | 116.0 | 81 | 44 | 1.67 | 1 |
| 2000 |  TOR | 25 | 10 | 5 | 3.59 | 138.0 | 104 | 56 | 1.22 | 0 |
| 2001 |  BOS | 26 | 10 | 9 | 4.21 | 136.2 | 89 | 35 | 1.27 | 0 |
| 2002 | BOS | 36 | 6 | 15 | 5.07 | 163.1 | 112 | 58 | 1.42 | 1 |
| 2004 | BOS | 2 | 0 | 0 | 0.00 | 1.0 | 0 | 1 | 2.00 | 0 |
| 2005 |  MIA | 1 | 0 | 1 | 10.38 | 4.1 | 4 | 5 | 2.08 | 0 |
What the columns mean: W · L · ERA · IP · K · BB · WHIP · SV