| year | team name | league | level | mlb | # | age | w | l | era | g | gs | cg | sho | gr | gf | sv | ip | h | r | er | hr | bb | so | wp | bk | hb | whip | h9 | hr9 | bb9 | so9 | ra9 | so/bb |
| 1970 | UCLA | Pac8 | NCAA-1 | Sr | 21 | 4 | 5 | 0.00 | 18 | 0 | 0 | 0 | 0 | 0 | 0 | 82.2 | 0 | 0 | 0 | 0 | 0 | 100 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 10.89 | 0.00 | 0.00 | |
| 1971 | Chicago Cubs | NL | MLB | CHN | 33 | 22 | 2 | 1 | 4.65 | 33 | 2 | 0 | 0 | 31 | 4 | 0 | 60.0 | 63 | 38 | 31 | 6 | 36 | 41 | 5 | 1 | 5 | 1.65 | 9.45 | 0.90 | 5.40 | 6.15 | 5.70 | 1.14 |
| 1972 | Chicago Cubs | NL | MLB | CHN | 33 | 23 | 1 | 1 | 3.12 | 19 | 4 | 0 | 0 | 15 | 8 | 4 | 57.2 | 56 | 22 | 20 | 4 | 25 | 49 | 2 | 0 | 1 | 1.40 | 8.74 | 0.62 | 3.90 | 7.65 | 3.43 | 1.96 |
| 1973 | Chicago Cubs | NL | MLB | CHN | 33 | 24 | 7 | 5 | 3.02 | 44 | 15 | 3 | 0 | 29 | 14 | 6 | 152.0 | 126 | 55 | 51 | 10 | 64 | 121 | 9 | 1 | 4 | 1.25 | 7.46 | 0.59 | 3.79 | 7.16 | 3.26 | 1.89 |
| 1974 | Chicago Cubs | NL | MLB | CHN | 33 | 25 | 11 | 22 | 3.86 | 44 | 36 | 10 | 2 | 8 | 6 | 1 | 242.2 | 246 | 133 | 104 | 13 | 109 | 191 | 13 | 8 | 6 | 1.46 | 9.12 | 0.48 | 4.04 | 7.08 | 4.93 | 1.75 |
| 1975 | Chicago Cubs | NL | MLB | CHN | 33 | 26 | 13 | 15 | 4.71 | 38 | 36 | 7 | 2 | 2 | 1 | 0 | 229.1 | 254 | 133 | 120 | 15 | 109 | 165 | 12 | 0 | 5 | 1.58 | 9.97 | 0.59 | 4.28 | 6.48 | 5.22 | 1.51 |
| 1976 | Chicago Cubs | NL | MLB | CHN | 33 | 27 | 9 | 13 | 4.27 | 32 | 31 | 3 | 0 | 1 | 0 | 0 | 196.0 | 215 | 102 | 93 | 11 | 96 | 110 | 10 | 2 | 2 | 1.59 | 9.87 | 0.51 | 4.41 | 5.05 | 4.68 | 1.15 |
| 1977 | Chicago Cubs | NL | MLB | CHN | 33 | 28 | 10 | 13 | 4.36 | 34 | 34 | 1 | 0 | 0 | 0 | 0 | 214.2 | 207 | 111 | 104 | 15 | 82 | 134 | 3 | 2 | 3 | 1.35 | 8.68 | 0.63 | 3.44 | 5.62 | 4.65 | 1.63 |
| 1978 | Cincinnati Reds | NL | MLB | CIN | 42 | 29 | 11 | 5 | 3.53 | 23 | 23 | 1 | 0 | 0 | 0 | 0 | 140.1 | 151 | 59 | 55 | 9 | 50 | 83 | 8 | 2 | 1 | 1.43 | 9.68 | 0.58 | 3.21 | 5.32 | 3.78 | 1.66 |
| 1979 | Cincinnati Reds | NL | MLB | CIN | 42 | 30 | 9 | 7 | 3.79 | 29 | 29 | 2 | 0 | 0 | 0 | 0 | 175.2 | 173 | 80 | 74 | 14 | 60 | 78 | 6 | 3 | 8 | 1.33 | 8.86 | 0.72 | 3.07 | 4.00 | 4.10 | 1.30 |
| 1980 | Tampa Tarpons | FSL | A+ | CIN | - | 31 | 1 | 0 | 0.56 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 16.0 | 7 | 3 | 1 | 0 | 5 | 14 | 0 | 0 | 1 | 0.75 | 3.94 | 0.00 | 2.81 | 7.88 | 1.69 | 2.80 |
| 1980 | Cincinnati Reds | NL | MLB | CIN | 42 | 31 | 2 | 1 | 4.74 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 19.0 | 21 | 10 | 10 | 1 | 5 | 13 | 0 | 0 | 0 | 1.37 | 9.95 | 0.47 | 2.37 | 6.16 | 4.74 | 2.60 |
| 1981 | Indianapolis Indians | Amer | AAA | CIN | - | 32 | 1 | 1 | 4.29 | 4 | 4 | 0 | 0 | 0 | 0 | 0 | 21.0 | 16 | 10 | 10 | 2 | 13 | 13 | 2 | 0 | 0 | 1.38 | 6.86 | 0.86 | 5.57 | 5.57 | 4.29 | 1.00 |
| 1982 | Indianapolis Indians | Amer | AAA | CIN | - | 33 | 0 | 0 | 4.50 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 4.0 | 2 | 2 | 2 | 0 | 3 | 3 | 0 | 0 | 0 | 1.25 | 4.50 | 0.00 | 6.75 | 6.75 | 4.50 | 1.00 |
| Tot: | MLB (10 yrs) | MLB | 75 | 83 | 4.01 | 300 | 214 | 27 | 4 | 33 | 86 | 11 | 1487.1 | 1512 | 743 | 662 | 98 | 636 | 985 | 68 | 19 | 35 | 1.44 | 9.15 | 0.59 | 3.85 | 5.96 | 4.50 | 1.55 | ||||
| Tot: | NL (10 yrs) | NL | 75 | 83 | 4.01 | 300 | 214 | 27 | 4 | 33 | 86 | 11 | 1487.1 | 1512 | 743 | 662 | 98 | 636 | 985 | 68 | 19 | 35 | 1.44 | 9.15 | 0.59 | 3.85 | 5.96 | 4.50 | 1.55 | ||||
| Tot: | Minors (3 yrs) | Minors | 2 | 1 | 2.85 | 8 | 8 | 0 | 0 | 0 | 0 | 0 | 41.0 | 25 | 15 | 13 | 2 | 21 | 30 | 2 | 0 | 1 | 1.12 | 5.49 | 0.44 | 4.61 | 6.59 | 3.29 | 1.43 | ||||
| Tot: | A+ (1 yrs) | A+ | 1 | 0 | 0.56 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 16.0 | 7 | 3 | 1 | 0 | 5 | 14 | 0 | 0 | 1 | 0.75 | 3.94 | 0.00 | 2.81 | 7.88 | 1.69 | 2.80 | ||||
| Tot: | AAA (2 yrs) | AAA | 1 | 1 | 4.32 | 5 | 5 | 0 | 0 | 0 | 0 | 0 | 25.0 | 18 | 12 | 12 | 2 | 16 | 16 | 2 | 0 | 0 | 1.36 | 6.48 | 0.72 | 5.76 | 5.76 | 4.32 | 1.00 | ||||
| Tot: | College (1 yrs) | College | 4 | 5 | 0.00 | 18 | 0 | 0 | 0 | 0 | 18 | 0 | 82.2 | 0 | 0 | 0 | 0 | 0 | 100 | 0 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 10.89 | 0.00 | |||||
| Avg: | MLB - 162 Inning avg | MLB | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| Avg: | Minors - 162 Inning avg | College | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||
| Avg: | College - 162 Inning avg | College | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| year | team name | league | level | mlb | # | age | pos | tbc+ | g | ab | r | h | 2b | 3b | hr | rbi | sb | cs | bb | so | hbp | sh | sf | ibb | gdp | tb | pa | xbh | 1b | avg | obp | slg | ops | seca | iso | babip | bb% | so% | so/bb | ab/hr |
| 1971 | Chicago Cubs | NL | MLB | CHN | 33 | 22 | P | 33 | 12 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 0 | 0 | 2 | 12 | 0 | 2 | .167 | .167 | .167 | .334 | .000 | .000 | .250 | 0.00 | 33.33 | 0.00 | 0.00 | |
| 1972 | Chicago Cubs | NL | MLB | CHN | 33 | 23 | P | 19 | 14 | 3 | 4 | 0 | 0 | 0 | 1 | 0 | 0 | 2 | 3 | 0 | 3 | 0 | 0 | 0 | 4 | 19 | 0 | 4 | .286 | .375 | .286 | .661 | .143 | .000 | .364 | 10.53 | 15.79 | 1.50 | 0.00 | |
| 1973 | Chicago Cubs | NL | MLB | CHN | 33 | 24 | P | 44 | 43 | 1 | 4 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 17 | 0 | 6 | 0 | 0 | 1 | 4 | 49 | 0 | 4 | .093 | .093 | .093 | .186 | .000 | .000 | .154 | 0.00 | 34.69 | 0.00 | 0.00 | |
| 1974 | Chicago Cubs | NL | MLB | CHN | 33 | 25 | P | 48 | 84 | 8 | 12 | 2 | 0 | 0 | 4 | 0 | 0 | 2 | 25 | 0 | 5 | 0 | 0 | 4 | 14 | 91 | 2 | 10 | .143 | .163 | .167 | .330 | .048 | .024 | .203 | 2.20 | 27.47 | 12.50 | 0.00 | |
| 1975 | Chicago Cubs | NL | MLB | CHN | 33 | 26 | P | 40 | 82 | 8 | 15 | 1 | 1 | 0 | 6 | 0 | 0 | 1 | 19 | 0 | 8 | 1 | 0 | 1 | 18 | 92 | 2 | 13 | .183 | .190 | .220 | .410 | .049 | .037 | .234 | 1.09 | 20.65 | 19.00 | 0.00 | |
| 1976 | Chicago Cubs | NL | MLB | CHN | 33 | 27 | P | 32 | 65 | 6 | 13 | 4 | 0 | 0 | 2 | 0 | 0 | 2 | 15 | 0 | 7 | 0 | 0 | 1 | 17 | 74 | 4 | 9 | .200 | .224 | .262 | .486 | .092 | .062 | .260 | 2.70 | 20.27 | 7.50 | 0.00 | |
| 1977 | Chicago Cubs | NL | MLB | CHN | 33 | 28 | P | 35 | 65 | 3 | 15 | 3 | 0 | 0 | 3 | 0 | 0 | 1 | 14 | 0 | 11 | 0 | 0 | 1 | 18 | 77 | 3 | 12 | .231 | .242 | .277 | .519 | .062 | .046 | .294 | 1.30 | 18.18 | 14.00 | 0.00 | |
| 1978 | Cincinnati Reds | NL | MLB | CIN | 42 | 29 | P | 23 | 43 | 2 | 8 | 3 | 0 | 0 | 5 | 0 | 0 | 4 | 9 | 1 | 8 | 0 | 0 | 0 | 11 | 56 | 3 | 5 | .186 | .271 | .256 | .527 | .163 | .070 | .235 | 7.14 | 16.07 | 2.25 | 0.00 | |
| 1979 | Cincinnati Reds | NL | MLB | CIN | 42 | 30 | P | 29 | 57 | 3 | 8 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 18 | 0 | 6 | 0 | 0 | 1 | 10 | 63 | 2 | 6 | .140 | .140 | .175 | .315 | .035 | .035 | .205 | 0.00 | 28.57 | 0.00 | 0.00 | |
| 1980 | Tampa Tarpons | FSL | A+ | CIN | - | 31 | P | 3 | 4 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 0 | 1 | .250 | .400 | .250 | .650 | .250 | .000 | .250 | 20.00 | 0.00 | 0.00 | 0.00 | |
| 1980 | Cincinnati Reds | NL | MLB | CIN | 42 | 31 | P | 4 | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 0 | .000 | .143 | .000 | .143 | .167 | .000 | .000 | 14.29 | 14.29 | 1.00 | 0.00 | |
| 1981 | Indianapolis Indians | Amer | AAA | CIN | - | 32 | P | 4 | 7 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 3 | 0 | 2 | 0 | 0 | 0 | 1 | 9 | 0 | 1 | .143 | .143 | .143 | .286 | .000 | .000 | .250 | 0.00 | 33.33 | 0.00 | 0.00 | |
| 1982 | Indianapolis Indians | Amer | AAA | CIN | - | 33 | P | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | .000 | .000 | .000 | .000 | .000 | .000 | .000 | 0.00 | 100.00 | 0.00 | 0.00 | |
| Tot: | MLB (10 yrs) | MLB | 307 | 471 | 37 | 81 | 15 | 1 | 0 | 24 | 0 | 0 | 13 | 125 | 1 | 54 | 1 | 0 | 9 | 98 | 540 | 16 | 65 | .172 | .195 | .208 | .404 | .064 | .036 | .233 | 2.41 | 23.15 | 9.62 | |||||||
| Tot: | NL (10 yrs) | NL | 307 | 471 | 37 | 81 | 15 | 1 | 0 | 24 | 0 | 0 | 13 | 125 | 1 | 54 | 1 | 0 | 9 | 98 | 540 | 16 | 65 | .172 | .195 | .208 | .404 | .064 | .036 | .233 | 2.41 | 23.15 | 9.62 | |||||||
| Tot: | Minors (3 yrs) | Minors | 8 | 12 | 0 | 2 | 0 | 0 | 0 | 3 | 0 | 0 | 1 | 4 | 0 | 2 | 0 | 0 | 0 | 2 | 15 | 0 | 2 | .167 | .231 | .167 | .397 | .083 | .000 | .250 | 6.67 | 26.67 | 4.00 | |||||||
| Tot: | A+ (1 yrs) | A+ | 3 | 4 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 5 | 0 | 1 | .250 | .400 | .250 | .650 | .250 | .000 | .250 | 20.00 | 0.00 | 0.00 | |||||||
| Tot: | AAA (2 yrs) | AAA | 5 | 8 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 4 | 0 | 2 | 0 | 0 | 0 | 1 | 10 | 0 | 1 | .125 | .125 | .125 | .250 | .000 | .000 | .250 | 0.00 | 40.00 | ||||||||
| Avg: | MLB - 162 game avg | MLB | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | ||||||
| Avg: | Minors - 162 game avg | College | 162 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 | 🔒 |
| Strikeouts | Walks | Hittable | SO/BB | vs Power | Durability | Team Success |
| 74 | 47 | 53 | 57 | 53 | 63 | .506 |