Jon Lieber vs Bob Tewksbury: Career Stats Comparison
Jon Lieber (1994–2008) and Bob Tewksbury (1986–1998) — breaking in during the 1990s and the 1980s respectively, so they pitched against very different hitting environments. Jon Lieber compiled 131 wins and 1,553 strikeouts; Bob Tewksbury put up 110 wins and 812 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Jon Lieber
Bob Tewksbury
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. For pitchers, lower ERA, WHIP, and BB/9 lead; higher K/9 leads.
| Statistic | Jon Lieber | Bob Tewksbury |
|---|---|---|
| Wins | 131 | 110 |
| Losses | 124 | 102 |
| Games | 401 | 302 |
| Games Started | 327 | 277 |
| Complete Games | 25 | 31 |
| Shutouts | 5 | 7 |
| Saves | 2 | 1 |
| Strikeouts | 1,553 | 812 |
| Walks | 422 | 292 |
| Hits Allowed | 2,388 | 2,043 |
| Home Runs Allowed | 285 | 142 |
| Innings Pitched | 2,198 | 1,807 |
| ERA | 4.27 | 3.92 |
| WHIP | 1.28 | 1.29 |
| K/9 | 6.36 | 4.04 |
| BB/9 | 1.73 | 1.45 |
PIV Comparison
By PIV (Player Impact Value), Jon Lieber edges Bob Tewksbury 27,226 to 25,586 — a gap driven primarily by per-season impact (1,945 vs 1,828 per year). 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).
Jon Lieber — top 3 seasons by ERA (lower is better)
Bob Tewksbury — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Jon Lieber leads in wins, strikeouts, WHIP, and K/9, while Bob Tewksbury owns ERA. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Jon Lieber. PIV agrees: Jon Lieber grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.