Jerry Koosman vs Steve Rogers: Career Stats Comparison
Jerry Koosman and Steve Rogers are close to even, splitting the 8 scored categories on this page 4–4 (8 further counting totals are shown but not scored). Jerry Koosman played 1967–1985 as a pitcher; Steve Rogers played 1973–1985 as a pitcher.
- ERA (Earned Run Average):
- Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
- W (Wins):
- Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
- SO (Strikeouts):
- For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
- WHIP (Walks and Hits per Inning Pitched):
- Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.
Data updated
Jerry Koosman (1967–1985) and Steve Rogers (1973–1985) — they debuted in the 1960s and the 1970s respectively and share 13 seasons. Jerry Koosman finished with 222 wins and 2,556 strikeouts; Steve Rogers finished with 158 wins and 1,621 strikeouts. The table below sets out their careers line by line.
Quick answer
- Who leads the career comparison? Neither — they split the 8 scored categories 4–4.
- Who had the better ERA? Steve Rogers, with 3.17 to Jerry Koosman's 3.36.
- Who won more games? Jerry Koosman, with 222 to Steve Rogers's 158.
- Who recorded more strikeouts? Jerry Koosman, with 2,556 to Steve Rogers's 1,621.
- Who had the better WHIP? Steve Rogers, with 1.23 to Jerry Koosman's 1.26.
- How many innings did each pitch? Jerry Koosman 3,839.1, Steve Rogers 2,837.2.
- Who threw more shutouts? Steve Rogers, with 37 to Jerry Koosman's 33.
Jerry Koosman
Steve Rogers
Career Stats Side-by-Side
Every cell below is a career total or career rate. Cells highlighted in green mark the player who leads that line. Lower ERA, WHIP and BB/9 lead; higher K/9 leads. 8 of the 16 lines below are scored; the other 8 are shown but not scored. Games, starts and innings measure playing time, and losses, walks and hits allowed track how long someone pitched, so they are left unmarked, as is any line where both players are at zero. Rate stats are not era-adjusted, so read them against the run environment each player worked in, or use the PIV card below, which is adjusted.
| Statistic | Jerry Koosman | Steve Rogers |
|---|---|---|
| Wins | Leads: 222 | 158 |
| Losses not scored | 209 | 152 |
| Games not scored | 612 | 399 |
| Games Started not scored | 527 | 393 |
| Complete Games | Leads: 140 | 129 |
| Shutouts | 33 | Leads: 37 |
| Saves not scored | 17 | 2 |
| Strikeouts | Leads: 2,556 | 1,621 |
| Walks not scored | 1,198 | 876 |
| Hits Allowed not scored | 3,635 | 2,619 |
| Home Runs Allowed not scored | 290 | 151 |
| Innings Pitched not scored | 3,839.1 | 2,837.2 |
| ERA | 3.36 | Leads: 3.17 |
| WHIP | 1.26 | Leads: 1.23 |
| K/9 | Leads: 5.99 | 5.14 |
| BB/9 | 2.81 | Leads: 2.78 |
PIV Comparison
By PIV (Player Impact Value), Steve Rogers edges Jerry Koosman 44,265 to 42,939 — driven by per-season impact — 3,405 PIV per season to 2,260 — rather than by longevity, since Steve Rogers played 13 seasons to Jerry Koosman's 19. PIV adjusts each season to league baselines, so it's the cleanest way to compare careers across eras.
Peak Seasons
The best single seasons each player produced, ranked by ERA among qualified workloads (120+ innings).
Jerry Koosman — top 3 seasons by ERA (lower is better)
Steve Rogers — top 3 seasons by ERA (lower is better)
Verdict
Jerry Koosman and Steve Rogers split the 8 scored categories on the head-to-head card 4-4. On the raw scoreboard neither has the edge. PIV, which is era-adjusted, grades Steve Rogers higher. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Jerry Koosman and Steve Rogers careers compare
Jerry Koosman and Steve Rogers were active at the same time between 1973 and 1985. Playing time explains much of the gap in the counting rows: Jerry Koosman appeared in 612 games to Steve Rogers's 399. Where Steve Rogers comes out ahead, it is in shutouts (37 to 33), ERA (3.17 to 3.36), and WHIP (1.23 to 1.26). By rate, Jerry Koosman struck out 5.99 and walked 2.81 per nine innings; Steve Rogers struck out 5.14 and walked 2.78. Both had the same role: Jerry Koosman was mainly a starter (527 starts in 612 games); Steve Rogers was mainly a starter (393 starts in 399 games).
Jerry Koosman vs Steve Rogers: Frequently Asked Questions
- Who was better, Jerry Koosman or Steve Rogers?
- By the career statistics compared on this page, neither leads: they split the 8 scored categories 4–4.
- Who had the better ERA?
- Steve Rogers, with 3.17 to Jerry Koosman's 3.36.
- Who won more games?
- Jerry Koosman, with 222 to Steve Rogers's 158.
- Who recorded more strikeouts?
- Jerry Koosman, with 2,556 to Steve Rogers's 1,621.
- Who had the better WHIP?
- Steve Rogers, with 1.23 to Jerry Koosman's 1.26.