Regular-season careers from the StatVault encyclopedia — the same tables as each player's profile.
| Roger Clemens | Stat | Tom Seaver |
|---|---|---|
| 24 | Seasons | 20 |
| 212.9 | Career VAL | 155.9 |
| 17.6 (1997) | Peak-season VAL | 14.3 (1973) |
| — | Hall of Fame | Inducted 1992 |
| 1× | MVP Awards | — |
| 7× | Cy Young Awards | 3× |
| 11× | All-Star Selections | 12× |
| — | Rookie of the Year | 1× |
| 3 | Black ink (league-leading seasons) | 1 |
VAL is Value Above League — regular-season production measured against the league at the same position group (MLB VAL board). Black and gray ink count seasons from 1950 on.
| Roger Clemens | Stat | Tom Seaver |
|---|---|---|
| Career | ||
| 709 | Games | 677 |
| Batting | ||
| 31 | Hits | 202 |
| 0 | Home runs | 12 |
| 12 | RBI | 86 |
| 5 | Runs | 99 |
| 0 | Stolen bases | 4 |
| 13 | ||
| 24 |
| Gray ink (top-10 finishes) |
|---|
| 15 |
| Walks |
|---|
| 108 |
| .173 | Batting avg | .154 |
|---|
| .236 | On-base % | .219 |
|---|
| .207 | Slugging % | .210 |
|---|
| 17 | OPS+ | 25 |
|---|
| Pitching | ||
|---|---|---|
| 354 | Wins | 311 |
| 184 | Losses | 205 |
| 0 | Saves | 1 |
| 4916.2 | Innings pitched | 4782.2 |
| 4,672 | Strikeouts (pitching) | 3,640 |
| 3.12 | ERA | 2.86 |
| 1.17 | WHIP | 1.12 |
| 140 | ERA+ | 127 |
| Age | Roger Clemens | Tom Seaver |
|---|---|---|
| 21 | 2.2 | — |
| 22 | 3.4 | 3.8 |
| 23 | 13.3 | 9.2 |
| 24 | 14.6 | 10.3 |
| 25 | 10 | 12.6 |
| 26 | 6.8 | 13.8 |
| 27 | 13.7 | 3.7 |
| 28 | 13.6 | 14.3 |
| 29 | 11.5 | 5.8 |
| 30 | 4 | 13.3 |
| 31 | 8 | 9.7 |
| 32 | 2.7 | 13.8 |
| 33 | 9 | 6.1 |
| 34 | 17.6 | 8.4 |
| 35 | 13.7 | 2.6 |
| 36 | 4.4 | 5.5 |
| 37 | 7.5 | 0 |
| 38 | 9.3 | 6.1 |
| 39 | 4.4 | 5.2 |
| 40 | 7.1 | 7.7 |
| 41 | 11 | 4 |
| 42 | 13.7 | — |
| 43 | 7.8 | — |
| 44 | 3.6 | — |