Troy Percival vs Billy Wagner: Career Stats Comparison
Billy Wagner has the better career line of the two, leading 9 of the 12 scored categories on this page (4 further counting totals are shown but not scored). Troy Percival played 1995–2009 as a pitcher; Billy Wagner played 1995–2010 as a pitcher.
- ERA (Earned Run Average):
- Earned runs allowed per nine innings pitched: (ER × 9) ÷ IP. The primary measure of pitching effectiveness.
- W (Wins):
- Games credited to a pitcher whose team took a lead it never surrendered while he was the pitcher of record.
- SO (Strikeouts):
- For a batter, times retired on a third strike; for a pitcher, batters retired on a third strike.
- WHIP (Walks and Hits per Inning Pitched):
- Baserunners allowed per inning: (BB + H) ÷ IP. Under 1.00 is elite.
Data updated
Troy Percival (1995–2009) and Billy Wagner (1995–2010) — both came up during the 1990s, so the matchup is a direct one. Troy Percival finished with 35 wins and 781 strikeouts; Billy Wagner finished with 47 wins and 1,196 strikeouts. The numbers below run them through identical career and rate-stat lenses.
Quick answer
- Who had the better ERA? Billy Wagner, with 2.31 to Troy Percival's 3.17.
- Who won more games? Billy Wagner, with 47 to Troy Percival's 35.
- Who recorded more strikeouts? Billy Wagner, with 1,196 to Troy Percival's 781.
- Who had the better WHIP? Billy Wagner, with 1.00 to Troy Percival's 1.11.
- Who pitched more innings? Billy Wagner, with 903.0 to Troy Percival's 708.2.
- Who threw more shutouts? Neither — both are at 0.
- Who has the higher career Pitcher PIV? Billy Wagner, with 38,470 career Pitcher PIV to Troy Percival's 10,919.
Troy Percival
Billy Wagner
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. Lower ERA, WHIP and BB/9 lead; higher K/9 leads. 12 of the 16 lines below are scored; the other 4 are counting totals on which fewer is not an achievement, so no one is awarded them. Totals where fewer is not an achievement -- losses, walks and hits allowed -- are left unmarked, because they track how long someone pitched rather than how well. Rate stats are not era-adjusted, so read them against the run environment each player worked in, or use the PIV card below, which is adjusted.
| Statistic | Troy Percival | Billy Wagner |
|---|---|---|
| Wins | 35 | Leads: 47 |
| Losses not scored | 43 | 40 |
| Games | 703 | Leads: 853 |
| Games Started | Leads: 1 | 0 |
| Complete Games | 0 | 0 |
| Shutouts | 0 | 0 |
| Saves | 358 | Leads: 422 |
| Strikeouts | 781 | Leads: 1,196 |
| Walks not scored | 306 | 300 |
| Hits Allowed not scored | 479 | 601 |
| Home Runs Allowed not scored | 85 | 82 |
| Innings Pitched | 708.2 | Leads: 903.0 |
| ERA | 3.17 | Leads: 2.31 |
| WHIP | 1.11 | Leads: 1.00 |
| K/9 | 9.92 | Leads: 11.92 |
| BB/9 | 3.89 | Leads: 2.99 |
PIV Comparison through 2025
By PIV (Player Impact Value), Billy Wagner outpaces Troy Percival 38,470 to 10,919 — driven by both sides of the ledger: 2,263 PIV per season to 780, across 17 seasons to 14. PIV adjusts each season to league baselines, so it's the cleanest way to compare careers across eras.
PIV is computed through the 2025 season. The career totals on this page include 2026 to date, so PIV does not yet reflect the 2026 season.
Peak Seasons
The best single seasons each player produced, ranked by ERA among qualified workloads (120+ innings).
Troy Percival
No seasons meet the qualifying workload, so there is no peak-season list to show.
Billy Wagner
No seasons meet the qualifying workload, so there is no peak-season list to show.
Verdict
On the head-to-head card, Billy Wagner leads in wins, strikeouts, ERA, and WHIP, while Troy Percival owns no headline categories. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Billy Wagner. PIV agrees: Billy Wagner grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Troy Percival and Billy Wagner careers compare
Troy Percival and Billy Wagner were active at the same time between 1995 and 2009. The two careers are close in length, 703 games for Troy Percival and 853 for Billy Wagner across 14 and 17 PIV seasons, so the totals compare on fairly even terms. Where Troy Percival comes out ahead, it is in starts (1 to 0). The per-nine rows read 9.92 strikeouts and 3.89 walks for Troy Percival, 11.92 and 2.99 for Billy Wagner. Troy Percival worked mostly in relief (1 starts in 703 games, 358 saves), and Billy Wagner worked mostly in relief (0 starts in 853 games, 422 saves).
Troy Percival vs Billy Wagner: Frequently Asked Questions
- Who was better, Troy Percival or Billy Wagner?
- By the career statistics compared on this page, Billy Wagner leads Troy Percival in 9 of the 12 scored categories.
- Who had the better ERA?
- Billy Wagner, with 2.31 to Troy Percival's 3.17.
- Who won more games?
- Billy Wagner, with 47 to Troy Percival's 35.
- Who recorded more strikeouts?
- Billy Wagner, with 1,196 to Troy Percival's 781.
- Who had the better WHIP?
- Billy Wagner, with 1.00 to Troy Percival's 1.11.