Jeff Fassero vs Robb Nen: Career Stats Comparison

Jeff Fassero has the better career line of the two, leading 8 of the 12 statistical categories compared on this page. Jeff Fassero played 1991–2006 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

Jeff Fassero (1991–2006) and Robb Nen (1993–2002) — both came up during the 1990s, so the matchup is a direct one. Jeff Fassero compiled 121 wins and 1,643 strikeouts; Robb Nen put up 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 Jeff Fassero's 4.11.
  • Who won more games? Jeff Fassero, with 121 to Robb Nen's 45.
  • Who recorded more strikeouts? Jeff Fassero, with 1,643 to Robb Nen's 793.
  • Who had the better WHIP? Robb Nen, with 1.21 to Jeff Fassero's 1.38.
  • Who pitched more innings? Jeff Fassero, with 2,033 to Robb Nen's 715.
  • Who threw more shutouts? Jeff Fassero, with 2 to Robb Nen's 0.
  • Who has the higher career Pitcher PIV? Robb Nen, with 28,255 career Pitcher PIV to Jeff Fassero's 25,161.
Leads Jeff Fassero 8 of 12 awarded categories
Pitcher PIV edge Robb Nen +3,093
Read the verdict ↓

Jeff Fassero

Pitcher · 1991–2006
Wins
121
Losses
124
Strikeouts
1,643
ERA
4.11
WHIP
1.38
IP
2,033
View Jeff Fassero's full profile →

Robb Nen

Pitcher · 1993–2002
Wins
45
Losses
42
Strikeouts
793
ERA
2.98
WHIP
1.21
IP
715
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. 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: compare them with the era in mind, or use the PIV card below, which is.

Jeff Fassero vs Robb Nen: Career Stats Comparison — Career Stats Side-by-Side
Statistic Jeff Fassero Robb Nen
Wins Leads: 121 45
Losses 124 42
Games Leads: 720 643
Games Started Leads: 242 4
Complete Games Leads: 17 0
Shutouts Leads: 2 0
Saves 25 Leads: 314
Strikeouts Leads: 1,643 793
Walks 724 260
Hits Allowed 2,083 607
Home Runs Allowed 214 51
Innings Pitched Leads: 2,033 715
ERA 4.11 Leads: 2.98
WHIP 1.38 Leads: 1.21
K/9 7.27 Leads: 9.98
BB/9 Leads: 3.20 3.27

PIV Comparison

By PIV (Player Impact Value), Robb Nen leads Jeff Fassero 28,255 to 25,161 — a gap driven primarily by per-season impact (2,569 vs 1,324 per year). PIV adjusts each season to league baselines, so it's the cleanest way to compare careers across eras.

Jeff Fassero
25,161
Career Pitcher PIV · 1,324 per season (19 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).

Jeff Fassero — top 3 seasons by ERA (lower is better)

19932.29 ERA12-5, 140 K in 149 IP
19942.99 ERA8-6, 119 K in 138 IP
19963.30 ERA15-11, 222 K in 231 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 ERA, WHIP, and K/9, while Jeff Fassero owns wins, strikeouts, and innings pitched. 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

Jeff Fassero vs Robb Nen: Frequently Asked Questions

Who was better, Jeff Fassero or Robb Nen?
By the career statistics compared on this page, Jeff Fassero leads Robb Nen in 8 of 12 categories.
Who had the better ERA?
Robb Nen, with 2.98 to Jeff Fassero's 4.11.
Who won more games?
Jeff Fassero, with 121 to Robb Nen's 45.
Who recorded more strikeouts?
Jeff Fassero, with 1,643 to Robb Nen's 793.
Who had the better WHIP?
Robb Nen, with 1.21 to Jeff Fassero's 1.38.