Kevin Appier vs Jon Lieber: Career Stats Comparison
Kevin Appier (1989–2004) and Jon Lieber (1994–2008) — breaking in during the 1980s and the 1990s respectively, so they pitched against very different hitting environments. Kevin Appier compiled 169 wins and 1,994 strikeouts; Jon Lieber put up 131 wins and 1,553 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Kevin Appier
Jon Lieber
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 | Kevin Appier | Jon Lieber |
|---|---|---|
| Wins | 169 | 131 |
| Losses | 137 | 124 |
| Games | 414 | 401 |
| Games Started | 402 | 327 |
| Complete Games | 34 | 25 |
| Shutouts | 12 | 5 |
| Saves | 0 | 2 |
| Strikeouts | 1,994 | 1,553 |
| Walks | 933 | 422 |
| Hits Allowed | 2,425 | 2,388 |
| Home Runs Allowed | 232 | 285 |
| Innings Pitched | 2,595 | 2,198 |
| ERA | 3.74 | 4.27 |
| WHIP | 1.29 | 1.28 |
| K/9 | 6.91 | 6.36 |
| BB/9 | 3.24 | 1.73 |
PIV Comparison
By PIV (Player Impact Value), Kevin Appier leads Jon Lieber 34,391 to 27,226 — a gap driven primarily by per-season impact (1,911 vs 1,945 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).
Kevin Appier — top 3 seasons by ERA (lower is better)
Jon Lieber — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Kevin Appier leads in wins, strikeouts, ERA, and K/9, while Jon Lieber owns WHIP. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Kevin Appier. PIV agrees: Kevin Appier grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.