Pete Alonso vs Buster Posey: Career Stats Comparison
Buster Posey 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). Pete Alonso has played 2019–present as a hitter; Buster Posey played 2009–2021 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
Pete Alonso (2019–present) and Buster Posey (2009–2021) — they broke in during the 2010s and the 2000s respectively, which makes the side-by-side worth doing carefully. Pete Alonso has 1,112 hits and 307 home runs through October 12, 2026; Buster Posey finished with 1,500 hits and 158 home runs. Below is the full career table, PIV adjustment, peak seasons, and a verdict.
Quick answer
- Who hit more home runs? Pete Alonso, with 307 to Buster Posey's 158.
- Who had the higher OPS? Pete Alonso, with .861 to Buster Posey's .831.
- Who had the higher batting average? Buster Posey, with .302 to Pete Alonso's .255.
- Who had more hits? Buster Posey, with 1,500 to Pete Alonso's 1,112.
- Who drove in more runs? Pete Alonso, with 825 to Buster Posey's 729.
- Who has the higher career PIV? Buster Posey, with 15,615 career PIV to Pete Alonso's 13,899.
- Who won more championships? Buster Posey, with 3 World Series titles to Pete Alonso's 0.
Pete Alonso
Buster Posey
Career Stats Side-by-Side
Every cell below is a career total or career rate for Pete Alonso and Buster Posey. 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 2010s and the 2000s were different run environments, so read them against their eras, or use the PIV card below, which is adjusted.
Pete Alonso is still active — his totals below are current through October 12, 2026.
| Statistic | Pete Alonso | Buster Posey |
|---|---|---|
| Games | 1,168 | Leads: 1,371 |
| At-Bats | 4,365 | Leads: 4,970 |
| Runs | Leads: 680 | 663 |
| Hits | 1,112 | Leads: 1,500 |
| Doubles | 207 | Leads: 293 |
| Triples | 8 | Leads: 9 |
| Home Runs | Leads: 307 | 158 |
| RBI | Leads: 825 | 729 |
| Walks | 500 | Leads: 540 |
| Strikeouts not scored | 1,153 | 721 |
| Stolen Bases | 23 | 23 |
| Batting Avg | .255 | Leads: .302 |
| On-Base % | .344 | Leads: .372 |
| Slugging % | Leads: .517 | .460 |
| OPS | Leads: .861 | .831 |
PIV Comparison through 2025
By PIV (Player Impact Value), Buster Posey leads Pete Alonso 15,615 to 13,899 — a longevity gap rather than a per-season one: Buster Posey played 12 seasons to Pete Alonso's 7, while Pete Alonso carries the higher per-season figure (1,986 to 1,301). 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.
Peak Seasons
The best single seasons each player produced, ranked by OPS among qualified workloads (300+ at-bats).
Pete Alonso — top 3 seasons by OPS
Buster Posey — top 3 seasons by OPS
Verdict
On the head-to-head card, Pete Alonso leads in home runs, RBI, runs, and OPS, while Buster Posey owns hits, batting average, and OBP. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Pete Alonso. Note that PIV actually grades Buster Posey ahead, which means Pete Alonso's edge is partly volume. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Pete Alonso and Buster Posey careers compare
The careers of Pete Alonso (2019–present) and Buster Posey (2009–2021) overlapped from 2019 to 2021, so for those seasons they faced the same league conditions. The two careers are close in length, 1,168 games for Pete Alonso and 1,371 for Buster Posey across 7 and 12 PIV seasons, so the totals compare on fairly even terms. At the plate, Pete Alonso struck out more than walked (1,153 to 500), and Buster Posey struck out more than walked (721 to 540). Home runs make up a larger share of Pete Alonso's hits: 307 of 1,112 for Pete Alonso, 158 of 1,500 for Buster Posey. In slugging percentage, Pete Alonso holds the edge, .517 to .460. Because Pete Alonso is still playing, the totals above will keep moving through the season.
Pete Alonso vs Buster Posey: Frequently Asked Questions
- Who was better, Pete Alonso or Buster Posey?
- By the career statistics compared on this page, Buster Posey leads Pete Alonso in 8 of the 14 scored categories.
- Did Pete Alonso or Buster Posey hit more home runs?
- Pete Alonso, with 307 to Buster Posey's 158.
- Who had the higher OPS?
- Pete Alonso, with .861 to Buster Posey's .831.
- Who had the higher batting average?
- Buster Posey, with .302 to Pete Alonso's .255.
- Who had more hits?
- Buster Posey, with 1,500 to Pete Alonso's 1,112.