2025 MLB Draft Profile: Aiva Arquette

Oregon State's Aiva Arquette is arguably the top collegiate bat in this draft class. If he's still on the board when the Miami Marlins are on the clock, should they take him?

Overview

Position: SS

Height: 6’5″

Weight: 220 pounds

School: Oregon State 

FOF Big Board Rank: 4th

Aiva Arquette is a 6’5”, 220-pound infielder who plays for the Oregon State University Beavers. Arquette is a tall, athletic infielder who could play up the middle at the next level and has easy power with more to come.

Arquette was a blue-chip prospect coming out of high school at the Saint Louis School in Honolulu, Hawaii. Drafted by the Arizona Diamondbacks in the 18th round of the 2022 MLB Draft, he decided to honor his commitment to the University of Washington Huskies.

After playing sparingly in his freshman season, Arquette had a breakout season for the Huskies in 2024. He slashed .325/.384/.574 as a sophomore with 68 hits, fourteen doubles, twelve home runs, 36 RBIs, and a .959 OPS. Arquette was named to the All-Pac-12 and All-Pac-12 Defensive Team. He would enter the transfer portal and sign with Oregon State.

In his first season at Oregon State, Arquette has been one of the best hitters in college baseball. On the season, Arquette is slashing .342/.475/.684 with 64 hits, eleven doubles, seventeen home runs, 59 RBIs, and a 1.159 OPS. He has also posted a 161 wRC+, a .353 BABIP, and improved his walk rate from 7.4% to 15.4% this season.

At the plate, Arquette has good swing mechanics and can tap into his power without getting pull-happy or over-swinging. He consistently makes loud contact and has made adjustments to put the ball in the air more often instead of hitting hard grounders. Arquette has improved his fly ball percentage from 38.6% to 45.9%. His ground ball percentage has gone down from 44.6% to 38.4%. He has become a dangerous home run threat and can hit for power to all fields.

On defense, Arquette has mostly played second base or shortstop in his collegiate career. However, most scouts project that he'll be a future third baseman if he can add more strength to his large frame. He has plus arm strength and soft hands to be a quality defender there in the pros.

The native Hawaiian is arguably the top collegiate bat in the 2025 MLB Draft class. Baseball America has him ranked #4 in the Top 400 2025 MLB Draft Prospects list and the #1 collegiate hitter in the draft class. Fish on Fish also has him ranked fourth, and MLB Pipeline has Arquette ranked fifth in their top draft prospects list.

Strengths

• Plus power tool
• Clean swinging mechanics
• Can drive the ball to all fields with authority
• Improved BB% and K%
• Adjusted his swing to lift the ball more consistently
• Plus arm strength
• Defensive versatility

Weaknesses

• Slightly below-average hit tool
• Might outgrow the shortstop position

Pro Comparison: Sebastian Walcott

Projection: Top 10 pick

Bottom Line

Aiva Arquette is arguably the best hitter in college baseball this season. The west coast infielder could be a huge addition for the Marlins if he’s available with the seventh pick in the 2025 MLB Draft. However, if Arquette does fall that far, signing him would likely require an overslot deal.

More 2025 Draft Profiles

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• LHP Liam Doyle
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• OF Brendan Summerhill