Robb Nen vs John Wetteland: Career Stats Comparison
Robb Nen (1993–2002) and John Wetteland (1989–2000) — breaking in during the 1990s and the 1980s respectively, so they pitched against very different hitting environments. Robb Nen compiled 45 wins and 793 strikeouts; John Wetteland put up 48 wins and 804 strikeouts. The numbers below run them through identical career and rate-stat lenses.
John Wetteland
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 | Robb Nen | John Wetteland |
|---|---|---|
| Wins | 45 | 48 |
| Losses | 42 | 45 |
| Games | 643 | 618 |
| Games Started | 4 | 17 |
| Complete Games | 0 | 0 |
| Shutouts | 0 | 0 |
| Saves | 314 | 330 |
| Strikeouts | 793 | 804 |
| Walks | 260 | 252 |
| Hits Allowed | 607 | 616 |
| Home Runs Allowed | 51 | 73 |
| Innings Pitched | 715 | 765 |
| ERA | 2.98 | 2.93 |
| WHIP | 1.21 | 1.13 |
| K/9 | 9.98 | 9.46 |
| BB/9 | 3.27 | 2.96 |
PIV Comparison
By PIV (Player Impact Value), Robb Nen outpaces John Wetteland 28,255 to 20,366 — a gap driven primarily by per-season impact (2,569 vs 1,697 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).
Robb Nen — top 0 seasons by ERA (lower is better)
John Wetteland — top 0 seasons by ERA (lower is better)
Verdict
On the head-to-head card, John Wetteland leads in wins, strikeouts, ERA, and WHIP, while Robb Nen owns K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to John Wetteland. Note that PIV actually grades Robb Nen ahead, which means John Wetteland's edge is partly volume. Click through to each profile for the full season-by-season breakdown.