Roberto Alomar vs Jason Giambi: Career Stats Comparison

Roberto Alomar has the better career line of the two, leading 8 of the 14 scored categories on this page (1 further counting total is shown but not scored). Roberto Alomar played 1988–2004 as a hitter; Jason Giambi played 1995–2014 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

Roberto Alomar (1988–2004) and Jason Giambi (1995–2014) — they broke in during the 1980s and the 1990s respectively, which makes the side-by-side worth doing carefully. Roberto Alomar finished with 2,724 hits and 210 home runs; Jason Giambi finished with 2,010 hits and 440 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 Roberto Alomar's 210.
  • Who had the higher OPS? Jason Giambi, with .916 to Roberto Alomar's .814.
  • Who had the higher batting average? Roberto Alomar, with .300 to Jason Giambi's .277.
  • Who had more hits? Roberto Alomar, with 2,724 to Jason Giambi's 2,010.
  • Who drove in more runs? Jason Giambi, with 1,441 to Roberto Alomar's 1,134.
  • Who has the higher career PIV? Jason Giambi, with 37,008 career PIV to Roberto Alomar's 20,285.
  • Who won more championships? Roberto Alomar, with 2 World Series titles to Jason Giambi's 0.
Leads Roberto Alomar 8 of 14 scored categories
PIV edge Jason Giambi +16,723
Read the verdict ↓

Roberto Alomar

Hitter · 1988–2004
Games
2,379
Hits
2,724
Home Runs
210
RBI
1,134
Avg
.300
OPS
.814
View Roberto Alomar's full profile →

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 →

Career Stats Side-by-Side

Every cell below is a career total or career rate for Roberto Alomar and Jason Giambi. 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, and the 1980s and the 1990s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.

Roberto Alomar vs Jason Giambi: Career Stats Comparison — Career Stats Side-by-Side
Statistic Roberto Alomar Jason Giambi
Games Leads: 2,379 2,260
At-Bats Leads: 9,073 7,267
Runs Leads: 1,508 1,227
Hits Leads: 2,724 2,010
Doubles Leads: 504 405
Triples Leads: 80 9
Home Runs 210 Leads: 440
RBI 1,134 Leads: 1,441
Walks 1,032 Leads: 1,366
Strikeouts not scored 1,140 1,572
Stolen Bases Leads: 474 20
Batting Avg Leads: .300 .277
On-Base % .371 Leads: .399
Slugging % .443 Leads: .516
OPS .814 Leads: .916

PIV Comparison through 2025

By PIV (Player Impact Value), Jason Giambi outpaces Roberto Alomar 37,008 to 20,285 — driven by both sides of the ledger: 1,762 PIV per season to 1,068, across 21 seasons to 19. 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.

Roberto Alomar
20,285
Career PIV · 1,068 per season (19 seasons)
Jason Giambi
37,008
Career PIV · 1,762 per season (21 seasons)

How PIV is calculated →

Peak Seasons

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

Roberto Alomar — top 3 seasons by OPS

2001.956 OPS20 HR, 100 RBI, .336 avg
1999.955 OPS24 HR, 120 RBI, .323 avg
1996.938 OPS22 HR, 94 RBI, .328 avg

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

Verdict

On the head-to-head card, Jason Giambi leads in home runs, RBI, OBP, and OPS, while Roberto Alomar owns hits, runs, and stolen bases. 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 Roberto Alomar and Jason Giambi careers compare

The careers of Roberto Alomar (1988–2004) and Jason Giambi (1995–2014) overlapped from 1995 to 2004, so for those seasons they faced the same league conditions. The two careers are close in length, 2,379 games for Roberto Alomar and 2,260 for Jason Giambi across 19 and 21 PIV seasons, so the totals compare on fairly even terms. Roberto Alomar struck out more than walked (1,140 to 1,032); Jason Giambi struck out more than walked (1,572 to 1,366). Home runs make up a larger share of Jason Giambi's hits: 210 of 2,724 for Roberto Alomar, 440 of 2,010 for Jason Giambi.

Roberto Alomar vs Jason Giambi: Frequently Asked Questions

Who was better, Roberto Alomar or Jason Giambi?
By the career statistics compared on this page, Roberto Alomar leads Jason Giambi in 8 of the 14 scored categories.
Did Roberto Alomar or Jason Giambi hit more home runs?
Jason Giambi, with 440 to Roberto Alomar's 210.
Who had the higher OPS?
Jason Giambi, with .916 to Roberto Alomar's .814.
Who had the higher batting average?
Roberto Alomar, with .300 to Jason Giambi's .277.
Who had more hits?
Roberto Alomar, with 2,724 to Jason Giambi's 2,010.