Aroldis Chapman vs David Robertson: Career Stats Comparison
Aroldis Chapman has the better career line of the two, leading 5 of the 6 scored categories on this page (10 further counting totals are shown but not scored). Aroldis Chapman has played 2010–present as a pitcher; David Robertson played 2008–2025 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
Aroldis Chapman (2010–present) and David Robertson (2008–2025) — they debuted in the 2010s and the 2000s respectively and share 16 seasons. Aroldis Chapman has 63 wins and 1,402 strikeouts through the 2026 season; David Robertson finished with 68 wins and 1,176 strikeouts. The table below sets out their careers line by line.
Quick answer
- Who leads the career comparison? Aroldis Chapman, in 5 of the 6 scored categories.
- Who had more saves? Aroldis Chapman, with 402 to David Robertson's 179.
- Who had the better ERA? Aroldis Chapman, with 2.48 to David Robertson's 2.93.
- Who recorded more strikeouts? Aroldis Chapman, with 1,402 to David Robertson's 1,176.
- Who had the better WHIP? Aroldis Chapman, with 1.08 to David Robertson's 1.16.
- Who struck out more batters per nine innings? Aroldis Chapman, with 14.45 to David Robertson's 11.83.
- Who has the higher career Pitcher PIV? Aroldis Chapman, with 38,498 career Pitcher PIV to David Robertson's 25,283.
Aroldis Chapman
David Robertson
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. 6 of the 16 lines below are scored; the other 10 are shown but not scored. Both worked mainly in relief, so saves and strikeouts are scored and wins, complete games and shutouts are not. Games, starts and innings measure playing time, and losses, walks and hits allowed track how long someone pitched, so they are left unmarked, as is any line where both players are at zero. 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 | Aroldis Chapman | David Robertson |
|---|---|---|
| Wins not scored | 63 | 68 |
| Losses not scored | 52 | 46 |
| Games not scored | 916 | 881 |
| Games Started not scored | 0 | 1 |
| Complete Games not scored | 0 | 0 |
| Shutouts not scored | 0 | 0 |
| Saves | Leads: 402 | 179 |
| Strikeouts | Leads: 1,402 | 1,176 |
| Walks not scored | 431 | 365 |
| Hits Allowed not scored | 510 | 674 |
| Home Runs Allowed not scored | 57 | 81 |
| Innings Pitched not scored | 873.0 | 894.1 |
| ERA | Leads: 2.48 | 2.93 |
| WHIP | Leads: 1.08 | 1.16 |
| K/9 | Leads: 14.45 | 11.83 |
| BB/9 | 4.44 | Leads: 3.67 |
PIV Comparison
By PIV (Player Impact Value), Aroldis Chapman outpaces David Robertson 38,498 to 25,283 — driven by per-season impact — 2,265 PIV per season to 1,487 — rather than by longevity, since Aroldis Chapman played 17 seasons to David Robertson's 17. 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 (40+ innings).
Aroldis Chapman — top 3 seasons by ERA (lower is better)
David Robertson — top 3 seasons by ERA (lower is better)
Verdict
Aroldis Chapman leads 5 of the 6 scored categories on the head-to-head card: saves, strikeouts, ERA, WHIP, and others. David Robertson leads 1: walks per nine. Both are scored as relievers. On the raw scoreboard the edge goes to Aroldis Chapman. PIV agrees: Aroldis Chapman grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Aroldis Chapman and David Robertson careers compare
From 2010 through 2025, Aroldis Chapman and David Robertson were in the majors together. The two careers are close in length, 916 games for Aroldis Chapman and 881 for David Robertson across 17 and 17 PIV seasons, so the totals compare on fairly even terms. David Robertson's edges on the table are walks per nine (3.67 to 4.44). The per-nine rows read 14.45 strikeouts and 4.44 walks for Aroldis Chapman, 11.83 and 3.67 for David Robertson. Aroldis Chapman worked mostly in relief (0 starts in 916 games, 402 saves), and David Robertson worked mostly in relief (1 starts in 881 games, 179 saves). In WHIP, Aroldis Chapman's 1.08 beats David Robertson's 1.16. Aroldis Chapman's totals run through the 2026 season.
Aroldis Chapman vs David Robertson: Frequently Asked Questions
- Who was better, Aroldis Chapman or David Robertson?
- By the career statistics compared on this page, Aroldis Chapman leads David Robertson in 5 of the 6 scored categories.
- Who had more saves?
- Aroldis Chapman, with 402 to David Robertson's 179.
- Who had the better ERA?
- Aroldis Chapman, with 2.48 to David Robertson's 2.93.
- Who recorded more strikeouts?
- Aroldis Chapman, with 1,402 to David Robertson's 1,176.
- Who had the better WHIP?
- Aroldis Chapman, with 1.08 to David Robertson's 1.16.