Jason Giambi vs Mo Vaughn: Career Stats Comparison

Jason Giambi has the better career line of the two, leading 10 of the 14 scored categories on this page (1 further counting total is shown but not scored). Jason Giambi played 1995–2014 as a hitter; Mo Vaughn played 1991–2003 as a hitter.

AVG (Batting Average):
Hits divided by at bats. .300 is the traditional mark of an excellent hitter.
HR (Home Runs):
Hits on which the batter circled the bases and scored, almost always by clearing the outfield fence.
RBI (Runs Batted In):
Runs that scored as a direct result of a batter's plate appearance.
OPS (On-Base Plus Slugging):
On-base percentage plus slugging percentage, the quickest single summary of offensive value. .900 or better is star-level.

Data updated

Jason Giambi (1995–2014) and Mo Vaughn (1991–2003) — both broke in during the 1990s, which makes the head-to-head feel like a contemporaries' debate. Jason Giambi finished with 2,010 hits and 440 home runs; Mo Vaughn finished with 1,620 hits and 328 home runs. Below is the full career table, PIV adjustment, peak seasons, and a verdict.

Quick answer

  • Who hit more home runs? Jason Giambi, with 440 to Mo Vaughn's 328.
  • Who had the higher OPS? Jason Giambi, with .916 to Mo Vaughn's .906.
  • Who had the higher batting average? Mo Vaughn, with .293 to Jason Giambi's .277.
  • Who had more hits? Jason Giambi, with 2,010 to Mo Vaughn's 1,620.
  • Who drove in more runs? Jason Giambi, with 1,441 to Mo Vaughn's 1,064.
  • Who has the higher career PIV? Jason Giambi, with 37,008 career PIV to Mo Vaughn's 24,784.
Leads Jason Giambi 10 of 14 scored categories
PIV edge Jason Giambi +12,224
Read the verdict ↓

Jason Giambi

Hitter · 1995–2014
Games
2,260
Hits
2,010
Home Runs
440
RBI
1,441
Avg
.277
OPS
.916
View Jason Giambi's full profile →

Mo Vaughn

Hitter · 1991–2003
Games
1,512
Hits
1,620
Home Runs
328
RBI
1,064
Avg
.293
OPS
.906
View Mo Vaughn's full profile →

Career Stats Side-by-Side

Every cell below is a career total or career rate for Jason Giambi and Mo Vaughn. Cells highlighted in green mark the category leader. 14 of the 15 lines below are scored; the other one is a counting total on which fewer is not an achievement, so no one is awarded it. Counting stats reward longevity, and strikeouts are left unmarked because a longer career accumulates more of them. 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.

Jason Giambi vs Mo Vaughn: Career Stats Comparison — Career Stats Side-by-Side
Statistic Jason Giambi Mo Vaughn
Games Leads: 2,260 1,512
At-Bats Leads: 7,267 5,532
Runs Leads: 1,227 861
Hits Leads: 2,010 1,620
Doubles Leads: 405 270
Triples 9 Leads: 10
Home Runs Leads: 440 328
RBI Leads: 1,441 1,064
Walks Leads: 1,366 725
Strikeouts not scored 1,572 1,429
Stolen Bases 20 Leads: 30
Batting Avg .277 Leads: .293
On-Base % Leads: .399 .383
Slugging % .516 Leads: .523
OPS Leads: .916 .906

PIV Comparison through 2025

By PIV (Player Impact Value), Jason Giambi outpaces Mo Vaughn 37,008 to 24,784 — a longevity gap rather than a per-season one: Jason Giambi played 21 seasons to Mo Vaughn's 12, while Mo Vaughn carries the higher per-season figure (2,065 to 1,762). 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.

Jason Giambi
37,008
Career PIV · 1,762 per season (21 seasons)
Mo Vaughn
24,784
Career PIV · 2,065 per season (12 seasons)

How PIV is calculated →

Peak Seasons

The best single seasons each player produced, ranked by OPS among qualified workloads (300+ at-bats).

Jason Giambi — top 3 seasons by OPS

20011.137 OPS38 HR, 120 RBI, .342 avg
20001.123 OPS43 HR, 137 RBI, .333 avg
20021.034 OPS41 HR, 122 RBI, .314 avg

Mo Vaughn — top 3 seasons by OPS

19961.003 OPS44 HR, 143 RBI, .326 avg
1998.993 OPS40 HR, 115 RBI, .337 avg
1994.984 OPS26 HR, 82 RBI, .310 avg

Verdict

On the head-to-head card, Jason Giambi leads in hits, home runs, RBI, and runs, while Mo Vaughn owns stolen bases and batting average. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Jason Giambi. PIV agrees: Jason Giambi grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.

Related Matchups

How the Jason Giambi and Mo Vaughn careers compare

From 1995 through 2003, Jason Giambi and Mo Vaughn were in the majors together. With 2,260 games against 1,512 across 21 and 12 PIV seasons, neither player's totals owe much to extra seasons. Mo Vaughn's edges on the table are triples (10 to 9), stolen bases (30 to 20), and batting average (.293 to .277). At the plate, Jason Giambi struck out more than walked (1,572 to 1,366), and Mo Vaughn struck out more than walked (1,429 to 725). In slugging percentage, Mo Vaughn holds the edge, .523 to .516.

Jason Giambi vs Mo Vaughn: Frequently Asked Questions

Who was better, Jason Giambi or Mo Vaughn?
By the career statistics compared on this page, Jason Giambi leads Mo Vaughn in 10 of the 14 scored categories.
Did Jason Giambi or Mo Vaughn hit more home runs?
Jason Giambi, with 440 to Mo Vaughn's 328.
Who had the higher OPS?
Jason Giambi, with .916 to Mo Vaughn's .906.
Who had the higher batting average?
Mo Vaughn, with .293 to Jason Giambi's .277.
Who had more hits?
Jason Giambi, with 2,010 to Mo Vaughn's 1,620.