Kevin Gausman vs Dan Haren: Career Stats Comparison
Kevin Gausman (2013–present) and Dan Haren (2003–2015) — breaking in during the 2010s and the 2000s respectively, so they pitched against very different hitting environments. Kevin Gausman compiled 112 wins and 1,954 strikeouts; Dan Haren put up 153 wins and 2,013 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Kevin Gausman
Dan Haren
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 Gausman | Dan Haren |
|---|---|---|
| Wins | 112 | 153 |
| Losses | 113 | 131 |
| Games | 361 | 391 |
| Games Started | 322 | 380 |
| Complete Games | 4 | 16 |
| Shutouts | 2 | 6 |
| Saves | 0 | 1 |
| Strikeouts | 1,954 | 2,013 |
| Walks | 535 | 500 |
| Hits Allowed | 1,835 | 2,357 |
| Home Runs Allowed | 233 | 305 |
| Innings Pitched | 1,911 | 2,419 |
| ERA | 3.81 | 3.75 |
| WHIP | 1.24 | 1.18 |
| K/9 | 9.20 | 7.49 |
| BB/9 | 2.52 | 1.86 |
PIV Comparison
By PIV (Player Impact Value), Kevin Gausman leads Dan Haren 28,075 to 24,951 — a gap driven primarily by per-season impact (1,872 vs 1,663 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 Gausman — top 3 seasons by ERA (lower is better)
Dan Haren — top 3 seasons by ERA (lower is better)
Verdict
On the head-to-head card, Dan Haren leads in wins, strikeouts, ERA, and WHIP, while Kevin Gausman owns K/9. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Dan Haren. Note that PIV actually grades Kevin Gausman ahead, which means Dan Haren's edge is partly volume. Click through to each profile for the full season-by-season breakdown.