Michael Fulmer vs Robb Nen: Career Stats Comparison

Robb Nen has the better career line of the two, leading 8 of the 12 scored categories on this page (4 further counting totals are shown but not scored). Michael Fulmer has played 2016–present as a pitcher; Robb Nen played 1993–2002 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

Michael Fulmer (2016–present) and Robb Nen (1993–2002) — breaking in during the 2010s and the 1990s respectively, so they pitched against very different hitting environments. Michael Fulmer has 37 wins and 596 strikeouts through October 12, 2026; Robb Nen finished with 45 wins and 793 strikeouts. The numbers below run them through identical career and rate-stat lenses.

Quick answer

  • Who had the better ERA? Robb Nen, with 2.98 to Michael Fulmer's 3.93.
  • Who won more games? Robb Nen, with 45 to Michael Fulmer's 37.
  • Who recorded more strikeouts? Robb Nen, with 793 to Michael Fulmer's 596.
  • Who had the better WHIP? Robb Nen, with 1.21 to Michael Fulmer's 1.27.
  • Who pitched more innings? Robb Nen, with 715.0 to Michael Fulmer's 693.1.
  • Who threw more shutouts? Michael Fulmer, with 1 to Robb Nen's 0.
  • Who has the higher career Pitcher PIV? Robb Nen, with 28,255 career Pitcher PIV to Michael Fulmer's 4,091.
Leads Robb Nen 8 of 12 scored categories
Pitcher PIV edge Robb Nen +24,163
Read the verdict ↓

Michael Fulmer

Pitcher · 2016–present
Wins
37
Losses
51
Strikeouts
596
ERA
3.93
WHIP
1.27
IP
693.1
View Michael Fulmer's full profile →

Robb Nen

Pitcher · 1993–2002
Wins
45
Losses
42
Strikeouts
793
ERA
2.98
WHIP
1.21
IP
715.0
View Robb Nen's full profile →

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, and the 2010s and the 1990s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.

Michael Fulmer is still active — his totals below are current through October 12, 2026.

Michael Fulmer vs Robb Nen: Career Stats Comparison — Career Stats Side-by-Side
Statistic Michael Fulmer Robb Nen
Wins 37 Leads: 45
Losses not scored 51 42
Games 280 Leads: 643
Games Started Leads: 90 4
Complete Games Leads: 2 0
Shutouts Leads: 1 0
Saves 19 Leads: 314
Strikeouts 596 Leads: 793
Walks not scored 226 260
Hits Allowed not scored 652 607
Home Runs Allowed not scored 77 51
Innings Pitched 693.1 Leads: 715.0
ERA 3.93 Leads: 2.98
WHIP 1.27 Leads: 1.21
K/9 7.74 Leads: 9.98
BB/9 Leads: 2.93 3.27

PIV Comparison through 2025

By PIV (Player Impact Value), Robb Nen outpaces Michael Fulmer 28,255 to 4,091 — driven by both sides of the ledger: 2,569 PIV per season to 409, across 11 seasons to 10. 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.

Michael Fulmer
4,091
Career Pitcher PIV · 409 per season (10 seasons)
Robb Nen
28,255
Career Pitcher PIV · 2,569 per season (11 seasons)

How PIV is calculated →

Peak Seasons

The best single seasons each player produced, ranked by ERA among qualified workloads (120+ innings).

Michael Fulmer — top 3 seasons by ERA (lower is better)

20163.06 ERA11-7, 132 K in 159 IP
20173.83 ERA10-12, 114 K in 164 IP
20184.69 ERA3-12, 110 K in 132 IP

Robb Nen

No seasons meet the qualifying workload, so there is no peak-season list to show.

Verdict

On the head-to-head card, Robb Nen leads in wins, strikeouts, ERA, and WHIP, while Michael Fulmer owns no headline categories. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Robb Nen. PIV agrees: Robb Nen grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.

Related Matchups

How the Michael Fulmer and Robb Nen careers compare

No season is shared: Robb Nen played 1993–2002, Michael Fulmer 2016–present. The table compares 280 games of Michael Fulmer with 643 of Robb Nen across 10 and 11 PIV seasons; totals favor the longer career by default. Where Michael Fulmer comes out ahead, it is in starts (90 to 4), complete games (2 to 0), and shutouts (1 to 0). By rate, Michael Fulmer struck out 7.74 and walked 2.93 per nine innings; Robb Nen struck out 9.98 and walked 3.27. Their roles differ: Michael Fulmer split time between starting and relief (90 starts in 280 games); Robb Nen worked mostly in relief (4 starts in 643 games, 314 saves). Michael Fulmer's numbers are live and update with each game, so the comparison is a snapshot.

Michael Fulmer vs Robb Nen: Frequently Asked Questions

Who was better, Michael Fulmer or Robb Nen?
By the career statistics compared on this page, Robb Nen leads Michael Fulmer in 8 of the 12 scored categories.
Who had the better ERA?
Robb Nen, with 2.98 to Michael Fulmer's 3.93.
Who won more games?
Robb Nen, with 45 to Michael Fulmer's 37.
Who recorded more strikeouts?
Robb Nen, with 793 to Michael Fulmer's 596.
Who had the better WHIP?
Robb Nen, with 1.21 to Michael Fulmer's 1.27.