Mark McGwire vs Gary Sheffield: Career Stats Comparison

Gary Sheffield 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). Mark McGwire played 1986–2001 as a hitter; Gary Sheffield played 1988–2009 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

Mark McGwire (1986–2001) and Gary Sheffield (1988–2009) — both broke in during the 1980s, which makes the head-to-head feel like a contemporaries' debate. Mark McGwire finished with 1,626 hits and 583 home runs; Gary Sheffield finished with 2,689 hits and 509 home runs. Below is the full career table, PIV adjustment, peak seasons, and a verdict.

Quick answer

  • Who hit more home runs? Mark McGwire, with 583 to Gary Sheffield's 509.
  • Who had the higher OPS? Mark McGwire, with .982 to Gary Sheffield's .907.
  • Who had the higher batting average? Gary Sheffield, with .292 to Mark McGwire's .263.
  • Who had more hits? Gary Sheffield, with 2,689 to Mark McGwire's 1,626.
  • Who drove in more runs? Gary Sheffield, with 1,676 to Mark McGwire's 1,414.
  • Who has the higher career PIV? Mark McGwire, with 44,531 career PIV to Gary Sheffield's 44,001.
  • Who won more championships? Both — each won 1 World Series title.
Leads Gary Sheffield 10 of 14 scored categories
PIV edge Mark McGwire +531
Read the verdict ↓

Mark McGwire

Hitter · 1986–2001
Games
1,874
Hits
1,626
Home Runs
583
RBI
1,414
Avg
.263
OPS
.982
View Mark McGwire's full profile →

Gary Sheffield

Hitter · 1988–2009
Games
2,576
Hits
2,689
Home Runs
509
RBI
1,676
Avg
.292
OPS
.907
View Gary Sheffield's full profile →

Career Stats Side-by-Side

Every cell below is a career total or career rate for Mark McGwire and Gary Sheffield. 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.

Mark McGwire vs Gary Sheffield: Career Stats Comparison — Career Stats Side-by-Side
Statistic Mark McGwire Gary Sheffield
Games 1,874 Leads: 2,576
At-Bats 6,187 Leads: 9,217
Runs 1,167 Leads: 1,636
Hits 1,626 Leads: 2,689
Doubles 252 Leads: 467
Triples 6 Leads: 27
Home Runs Leads: 583 509
RBI 1,414 Leads: 1,676
Walks 1,317 Leads: 1,475
Strikeouts not scored 1,596 1,171
Stolen Bases 12 Leads: 253
Batting Avg .263 Leads: .292
On-Base % Leads: .394 .393
Slugging % Leads: .588 .514
OPS Leads: .982 .907

PIV Comparison through 2025

By PIV (Player Impact Value), Mark McGwire edges Gary Sheffield 44,531 to 44,001 — driven by per-season impact — 2,620 PIV per season to 1,833 — rather than by longevity, since Mark McGwire played 17 seasons to Gary Sheffield's 24. 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.

Mark McGwire
44,531
Career PIV · 2,620 per season (17 seasons)
Gary Sheffield
44,001
Career PIV · 1,833 per season (24 seasons)

How PIV is calculated →

Peak Seasons

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

Mark McGwire — top 3 seasons by OPS

19981.222 OPS70 HR, 147 RBI, .299 avg
19961.198 OPS52 HR, 113 RBI, .312 avg
19951.125 OPS39 HR, 90 RBI, .274 avg

Gary Sheffield — top 3 seasons by OPS

19961.090 OPS42 HR, 120 RBI, .314 avg
20001.081 OPS43 HR, 109 RBI, .325 avg
20031.023 OPS39 HR, 132 RBI, .330 avg

Verdict

On the head-to-head card, Gary Sheffield leads in hits, RBI, runs, and stolen bases, while Mark McGwire owns home runs, OBP, and OPS. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Gary Sheffield. Note that PIV actually grades Mark McGwire ahead, which means Gary Sheffield's edge is partly volume. Click through to each profile for the full season-by-season breakdown.

Related Matchups

How the Mark McGwire and Gary Sheffield careers compare

From 1988 through 2001, Mark McGwire and Gary Sheffield were in the majors together. The two careers are close in length, 1,874 games for Mark McGwire and 2,576 for Gary Sheffield across 17 and 24 PIV seasons, so the totals compare on fairly even terms. The green cells for Mark McGwire are home runs (583 to 509), on-base percentage (.394 to .393), and slugging percentage (.588 to .514). Plate discipline differs: Mark McGwire struck out more than walked (1,596 to 1,317), but Gary Sheffield walked more often than struck out (1,475 walks, 1,171 strikeouts). Mark McGwire is the more power-leaning hitter, with 583 of 1,626 hits leaving the park.

Mark McGwire vs Gary Sheffield: Frequently Asked Questions

Who was better, Mark McGwire or Gary Sheffield?
By the career statistics compared on this page, Gary Sheffield leads Mark McGwire in 10 of the 14 scored categories.
Did Mark McGwire or Gary Sheffield hit more home runs?
Mark McGwire, with 583 to Gary Sheffield's 509.
Who had the higher OPS?
Mark McGwire, with .982 to Gary Sheffield's .907.
Who had the higher batting average?
Gary Sheffield, with .292 to Mark McGwire's .263.
Who had more hits?
Gary Sheffield, with 2,689 to Mark McGwire's 1,626.

See These Players in Another Era