Zack Gelof is the Athletics‘ starting third baseman — a right-handed hitter from Rehoboth Beach, Delaware, who made his MLB debut on July 14, 2023, at just 23 years old. After two difficult seasons at the plate, his 2026 campaign (.280 AVG, 13 HR, .833 OPS) is the kind of bounce-back that turns prospects into fixtures.
Quick Facts
- Full name: Zack Gelof
- Position: Third Base
- Team: Athletics
- Number: 20
- Bats / Throws: Right / Right
- Height / Weight: 6’2″ / 205 lbs
- Born: October 19, 1999 (age 26) — Rehoboth Beach, Delaware, USA 🇺🇸
- MLB Debut: July 14, 2023
Background
Rehoboth Beach is better known for summer tourists and boardwalk food than for producing big leaguers. Growing up there, Gelof developed his game without the weight of a local baseball tradition behind him — no hotbed pressure, no regional spotlight. He moved through the minors quietly and steadily, building a reputation as a disciplined defender at third base rather than a flashy prospect chasing headlines.
He reached Oakland in 2023 and immediately began the adjustment curve that most young players face at the highest level.
Professional Career
Gelof’s first full season in 2024 showed real power — 17 home runs, 49 RBI, and 25 stolen bases — but a .211 average signaled he hadn’t yet solved big-league pitching consistently. Then 2025 hit hard: a .174 average, just 2 home runs, and 7 RBI in limited action. For a lot of young players, that kind of dip raises questions. For Gelof, it became the setup for something better.
In 2026, he answered. A .280 average, 13 home runs, 32 RBI, 46 runs scored, 8 stolen bases, and an OPS of .833 — those are the numbers of a player who figured something out. The power was always there; now the contact and consistency caught up.
Defensively, Gelof has earned respect in Oakland’s infield. Third base demands both offensive production and reliable glove work, and he’s shown he can handle both sides of the position.
Career Stats
- 2026 — Athletics: .280 AVG | 13 HR | 32 RBI | 46 R | .833 OPS | 8 SB
- 2025 — Athletics: .174 AVG | 2 HR | 7 RBI | 12 R | .502 OPS | 1 SB
- 2024 — Athletics: .211 AVG | 17 HR | 49 RBI | 60 R | .632 OPS | 25 SB
Awards and Recognition
Gelof hasn’t collected major MLB hardware yet — no Silver Slugger, no All-Star nod. His career is still in the building phase. But if the 2026 numbers hold as a new baseline, individual recognition becomes a realistic conversation rather than a distant one.
One More Thing
There’s something fitting about a kid from a beach town — a place with zero baseball tradition — grinding his way to the big leagues through consistency rather than hype. Gelof’s calm under pressure, including the ability to rebound from two rough seasons without losing confidence, may trace right back to growing up somewhere nobody expected him to make it this far.
