Zack Gelof

Zack Gelof

26-Year-Old Second Baseman2B
Sacramento Athletics
2026 Fantasy Outlook
A pair of injuries delayed Gelof's debut until early July. He was hit by a pitch in spring training and required surgery on his hamate bone; then, in April, he was pulled from his rehab assignment due to a stress reaction in his ribs. After batting just .080/.143/.080 in his first eight games back, Gelof was optioned to Triple-A Las Vegas until late August. After being recalled, he played regularly before dislocating his shoulder, missing the final eight days of the season. Gelof managed a .174/.230/.272 line during his second stint in the majors last year. He's expected to be fully healthy after shoulder surgery and will compete with Darrel Hernaiz and Max Schuemann for playing time at second base. A return to his 2023 rookie form would likely secure the job, but he has struggled with both contact frequency and quality over the past two seasons. Read Past Outlooks
RANKS
Rest of Season From Preseason
#422
ADP
Signed a one-year contract with the Athletics in March of 2026.
Deposits double in loss
2BSacramento Athletics
May 28, 2026
Gelof went 2-for-4 with one double in Wednesday's 9-1 loss to the Mariners.
Analysis
Gelof blooped an opposite-field double in the fourth inning before adding a single in the ninth frame, joining Darell Hernaiz as the only Athletics to record multiple hits in the blowout loss. Gelof logged a hit in all three contests against Seattle, totaling five knocks in the series and marking a step in the right direction after he went 6-for-40 (.150) across the previous 10 games. With Max Muncy (hand) sidelined since April 28, Gelof has emerged as the Athletics' primary option at third base.
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Batting Stats
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2026 MLB Game Log
2026
2025
2024
2023
2026 MLB Game Log
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2025 MLB Game Log
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2024 MLB Game Log
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2023 MLB Game Log
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Minor League Game Log
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Batting Order Slot Breakdown
vs Right-Handed Pitchers
vs RHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
9
3
6
4
vs Left-Handed Pitchers
vs LHP
#1
#2
#3
#4
#5
#6
#7
#8
#9
2
1
3
3
2
Left/Right Batting Splits
Since 2024
 
 
+33%
OPS vs RHP
2026
 
 
+2%
OPS vs LHP
2025
 
 
+82%
OPS vs RHP
2024
 
 
+41%
OPS vs RHP
OPS PA R HR RBI SB AVG OBP SLG
Since 2024vs Left .504 185 18 3 14 7 .163 .239 .265
Since 2024vs Right .672 600 75 22 59 25 .228 .279 .393
2026vs Left .741 34 5 1 6 1 .281 .303 .438
2026vs Right .730 103 16 5 11 5 .234 .294 .436
2025vs Left .314 26 0 0 2 1 .120 .154 .160
2025vs Right .570 75 12 2 5 0 .194 .257 .313
2024vs Left .479 125 13 2 6 5 .138 .240 .239
2024vs Right .676 422 47 15 43 20 .232 .279 .397
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Minor League Splits View Minor League Split Stats
Home/Away Batting Splits
Since 2024
 
 
+31%
OPS on Road
2026
 
 
+8%
OPS at Home
2025
 
 
+74%
OPS on Road
2024
 
 
+35%
OPS on Road
OPS PA R HR RBI SB AVG OBP SLG
Since 2024Home .550 401 42 10 30 17 .193 .250 .300
Since 2024Away .719 384 51 15 43 15 .233 .290 .429
2026Home .764 64 8 3 7 2 .271 .306 .458
2026Away .706 73 13 3 10 4 .224 .288 .418
2025Home .404 68 6 1 5 1 .145 .194 .210
2025Away .703 33 6 1 2 0 .233 .303 .400
2024Home .536 269 28 6 18 14 .186 .251 .285
2024Away .724 278 32 11 31 11 .235 .289 .435
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Stat Review
How does Zack Gelof compare to other hitters?
This section compares his stats with all batting seasons from the previous three seasons (minimum 400 plate appearances)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.

* Exit Velocity and Barrels/PA % are benchmarked against 2019 data (min 400 PA) and Hard Hit Rate is benchmarked against last season's data (min 400 PA). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
  • BB/K
    Walk to strikeout ratio
  • BB Rate
    The percentage of plate appearances resulting in a walk.
  • K Rate
    The percentage of plate appearances resulting in a strikeout.
  • BABIP
    Batting average on balls in play. Measures how many of a batter’s balls in play go for hits.
  • ISO
    Isolated Power. Slugging percentage minus batting average. A computation used to measure a batter's raw power.
  • AVG
    Batting average. Hits divided by at bats.
  • OBP
    On Base Percentage. A measure of how often a batters reaches base. Roughly equal to number of times on base divided by plate appearances.
  • SLG
    Slugging Percentage. A measure of the batting productivity of a hitter. It is calculated as total bases divided by at bats.
  • OPS
    On base plus slugging. THe sum of a batter's on-base percentage and slugging percentage.
  • wOBA
    Weighted on-base average. Measures a player's overall offensive contributions per plate appearance. wOBA combines all the different aspects of hitting into one metric, weighting each of them in proportion to their actual run value.
  • Exit Velocity
    The speed of the baseball as it comes off the bat, immediately after a batter makes contact.
  • Hard Hit Rate
    A measure of contact quality from Sports Info Solutions. This stat explains what percentage of batted balls were hit hard vs. medium or soft.
  • Barrels/PA
    The percentage of plate appearances where a batter had a batted ball classified as a Barrel. A Barrel is a batted ball with similar exit velocity and launch angle to past ones that led to a minimum .500 batting average and 1.500 slugging percentage.
  • Expected BA
    Expected Batting Average.
  • Expected SLG
    Expected Slugging Percentage.
  • Sprint Speed
    The speed of a runner from home to first, in feet per second.
  • Ground Ball %
    The percentage of balls put in play that are on the ground.
  • Line Drive %
    The percentage of balls put in play that are line drives.
  • Fly Ball %
    The percentage of balls put in play that are fly balls.
BB/K
0.24
 
BB Rate
5.8%
 
K Rate
24.8%
 
BABIP
.291
 
ISO
.190
 
AVG
.246
 
OBP
.296
 
SLG
.437
 
OPS
.733
 
wOBA
.321
 
Exit Velocity
90.6 mph
 
Hard Hit Rate
34.0%
 
Barrels/PA
5.8%
 
Expected BA
.233
 
Expected SLG
.425
 
Sprint Speed
24.8 ft/sec
 
Ground Ball %
44.0%
 
Line Drive %
17.6%
 
Fly Ball %
38.5%
 
Prospect Rankings History
Advanced Batting Stats
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Additional Stats
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Defensive Stats
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Batted Ball Stats
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Stats Vs Upcoming Pitchers
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Recent RotoWire Articles Featuring Zack Gelof See More
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Past Fantasy Outlooks
2025
2024
2023
After breaking out to the tune of 14 homers and 14 steals in just 69 games as a rookie, Gelof endured the dreaded sophomore slump last season. He struggled mightily with strikeouts, fanning an AL-worst 188 times, which resulted in a 56-point drop in batting average to .211. Gelof showed signs of recovery in June only to post OPS marks below .700 in each of the final three months. The Athletics had nothing to lose and kept Gelof on the field at second base, affording him the opportunity to rack up 17 homers and 25 steals across 547 plate appearances. Gelof and the rest of the A's will be playing their home games at Sutter Health Park in West Sacramento in 2025 -- home of the Triple-A Sacramento River Cats of the Pacific Coast League -- which would seem to bode well for the offense. The pressure will be on for Gelof to bounce back and prove he should be considered part of the organization's long-term future.
Oakland was eliminated from the postseason on the second day of the 2023 season, so it remains a mystery why they let Gelof stay in the minors as long as he did rather than try to push for a prospect promotion incentive pick. Gelof began the season with 12 homers, 20 steals, and a .304/.401/.529 line in Sacramento over 69 games before coming to Oakland and hitting 14 more homers with 14 steals and a .267/.337/.504 line in the same amount of games. All in all, Gelof finished with 26 homers, 100 runs, 76 RBI, and 34 steals in 138 games. All that from someone whose ADP was in the 700's last winter. Strikeouts have been an issue as he has rapidly ascended in the system since coming out of the University of Virginia which will limit the ceiling of his batting average, but he should volume plenty in the other categories as an everyday major leaguer in 2024. His market price year over year has improved more than any other hitter.
In many organizations, Gelof might have a hard time breaking through for MLB playing time in 2023, but that shouldn't be the case in Oakland. He spent more time at second base than third base in 2022 and projects as the everyday second baseman as early as this summer, depending on how he handles a return to Triple-A. Gelof's 68.9 Contact% and 27.5 K% in the upper levels, primarily Double-A, portend initial struggles against big-league pitching. There is a slight chance Gelof could develop an above-average hit tool with plus power, but it's probably more likely he has an average hit tool with above-average power. That would equate to a useful middle infielder in fantasy, especially since Gelof is likely to hit in the middle of the lineup, but there's not a lot of upside here, given his future home park and lineup.
More Fantasy News
Notches two more steals
2BSacramento Athletics
May 21, 2026
Gelof went 0-for-5 with a run, an RBI and two stolen bases Thursday in a 3-2, extra-inning win over the Angels.
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Big day at plate Tuesday
2BSacramento Athletics
May 19, 2026
Gelof went 3-for-5 with a home run, two total runs and three total RBI against the Angels in a 14-6 rout Tuesday.
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Goes deep in defeat
2BSacramento Athletics
May 15, 2026
Gelof went 2-for-4 with a solo home run in Thursday's 5-4 loss to St. Louis.
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Homers in Wednesday's win
2BSacramento Athletics
May 13, 2026
Gelof went 1-for-4 with a solo home run in Wednesday's 6-2 win over the Cardinals.
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Starts again, goes deep
2BSacramento Athletics
May 7, 2026
Gelof went 2-for-5 with a home run, a triple, three total RBI and two total runs against the Phillies in a 12-1 win Thursday.
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Latest Fantasy Rumors
Could get look at third base
2BSacramento Athletics
December 29, 2025
The Athletics could give Gelof a chance during spring training to win their third-base job, Jason Burke of SI.com reports.
Analysis
Gelof has played only second base at the major-league level, but that position has been filled after the Athletics swung a trade for Jeff McNeil. The 26-year-old Gelof has appeared in a total of 60 games at third base in the minors, so the position isn't totally foreign to him. The bigger question with Gelof at this point is what he could offer offensively, as he's slashed just .205/.264/.348 with a 36.1 percent strikeout rate over the last two seasons during his time in the majors. Gelof has minor-league options remaining and could begin the 2026 season at Triple-A Las Vegas.
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