Ronald Acuña vs Buster Posey: Career Stats Comparison
Ronald Acuña and Buster Posey are close to even, splitting the 14 scored categories on this page 7–7 (1 further counting total is shown but not scored). Ronald Acuña has played 2018–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
Ronald Acuña (2018–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. Ronald Acuña has 1,017 hits and 206 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? Ronald Acuña, with 206 to Buster Posey's 158.
- Who had the higher OPS? Ronald Acuña, with .895 to Buster Posey's .831.
- Who had the higher batting average? Buster Posey, with .302 to Ronald Acuña's .285.
- Who had more hits? Buster Posey, with 1,500 to Ronald Acuña's 1,017.
- Who drove in more runs? Buster Posey, with 729 to Ronald Acuña's 514.
- Who has the higher career PIV? Ronald Acuña, with 16,199 career PIV to Buster Posey's 15,615.
- Who won more championships? Buster Posey, with 3 World Series titles to Ronald Acuña's 1.
Ronald Acuña
Buster Posey
Career Stats Side-by-Side
Every cell below is a career total or career rate for Ronald Acuña 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.
Ronald Acuña is still active — his totals below are current through October 12, 2026.
| Statistic | Ronald Acuña | Buster Posey |
|---|---|---|
| Games | 923 | Leads: 1,371 |
| At-Bats | 3,564 | Leads: 4,970 |
| Runs | Leads: 716 | 663 |
| Hits | 1,017 | Leads: 1,500 |
| Doubles | 175 | Leads: 293 |
| Triples | Leads: 14 | 9 |
| Home Runs | Leads: 206 | 158 |
| RBI | 514 | Leads: 729 |
| Walks | 492 | Leads: 540 |
| Strikeouts not scored | 924 | 721 |
| Stolen Bases | Leads: 226 | 23 |
| Batting Avg | .285 | Leads: .302 |
| On-Base % | Leads: .379 | .372 |
| Slugging % | Leads: .516 | .460 |
| OPS | Leads: .895 | .831 |
PIV Comparison through 2025
By PIV (Player Impact Value), Ronald Acuña edges Buster Posey 16,199 to 15,615 — driven by per-season impact — 2,025 PIV per season to 1,301 — rather than by longevity, since Ronald Acuña played 8 seasons to Buster Posey's 12. 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).
Ronald Acuña — top 3 seasons by OPS
Buster Posey — top 3 seasons by OPS
Verdict
On the head-to-head card, Ronald Acuña leads in home runs, runs, stolen bases, and OBP, while Buster Posey owns hits, RBI, and batting average. That doesn't settle the era debate, but on the raw scoreboard the edge goes to Ronald Acuña. PIV agrees: Ronald Acuña grades out higher across their careers. Click through to each profile for the full season-by-season breakdown.
Related Matchups
How the Ronald Acuña and Buster Posey careers compare
From 2018 through 2021, Ronald Acuña and Buster Posey were in the majors together. With 923 games against 1,371 across 8 and 12 PIV seasons, neither player's totals owe much to extra seasons. At the plate, Ronald Acuña struck out more than walked (924 to 492), and Buster Posey struck out more than walked (721 to 540). Home runs make up a larger share of Ronald Acuña's hits: 206 of 1,017 for Ronald Acuña, 158 of 1,500 for Buster Posey. Ronald Acuña was the more frequent base stealer relative to games played. Ronald Acuña's slugging percentage of .516 tops Buster Posey's .460. Because Ronald Acuña is still playing, the totals above will keep moving through the season.
Ronald Acuña vs Buster Posey: Frequently Asked Questions
- Did Ronald Acuña or Buster Posey hit more home runs?
- Ronald Acuña, with 206 to Buster Posey's 158.
- Who had the higher OPS?
- Ronald Acuña, with .895 to Buster Posey's .831.
- Who had the higher batting average?
- Buster Posey, with .302 to Ronald Acuña's .285.
- Who had more hits?
- Buster Posey, with 1,500 to Ronald Acuña's 1,017.