Roberto Hernandez vs B. J. Ryan: Career Stats Comparison
Roberto Hernandez (1991–2007) and B. J. Ryan (1999–2009) — both came up during the 1990s, so the matchup is a direct one. Roberto Hernandez compiled 67 wins and 945 strikeouts; B. J. Ryan put up 21 wins and 625 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Roberto Hernandez
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 | Roberto Hernandez | B. J. Ryan |
|---|---|---|
| Wins | 67 | 21 |
| Losses | 71 | 28 |
| Games | 1,010 | 560 |
| Games Started | 3 | 0 |
| Complete Games | 0 | 0 |
| Shutouts | 0 | 0 |
| Saves | 326 | 117 |
| Strikeouts | 945 | 625 |
| Walks | 462 | 264 |
| Hits Allowed | 1,002 | 424 |
| Home Runs Allowed | 96 | 42 |
| Innings Pitched | 1,071 | 536 |
| ERA | 3.45 | 3.37 |
| WHIP | 1.37 | 1.28 |
| K/9 | 7.94 | 10.48 |
| BB/9 | 3.88 | 4.43 |
PIV Comparison
By PIV (Player Impact Value), B. J. Ryan edges Roberto Hernandez 15,346 to 14,908 — a gap driven primarily by per-season impact (1,279 vs 745 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).
Roberto Hernandez — top 0 seasons by ERA (lower is better)
B. J. Ryan — top 0 seasons by ERA (lower is better)
Verdict
On the head-to-head card, B. J. Ryan leads in ERA, WHIP, and K/9, while Roberto Hernandez owns wins, strikeouts, and innings pitched. That doesn't settle the era debate, but on the raw scoreboard the edge goes to B. J. Ryan. PIV agrees: B. J. Ryan grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.