Apr 18, 2025; Milwaukee, Wisconsin, USA; Athletics first baseman Tyler Soderstrom (21) singles during the first inning against the Milwaukee Brewers at American Family Field. Mandatory Credit: Jeff Hanisch-Imagn Images
The first four weeks of the 2025 season are behind us, and numerous players are off to hot starts. As the weather starts heating up across the country, there will be players finally breaking out of early-season slumps and the start of teams calling up their top prospects. Below is a breakdown of the top 10 first basemen in MLB heading into Week 5.
1. Pete Alonso, New York Mets
Apr 2, 2025; Miami, Florida, USA; New York Mets first baseman Pete Alonso (20) hits a three-run home run against the Miami Marlins during the eighth inning at loanDepot Park. Mandatory Credit: Sam Navarro-Imagn Images
“Polar Bear” leads MLB first basemen with 22 RBI and posts a .352/.466/.718 slash line with five home runs.
2. Tyler Soderstrom, Athletics
Mar 27, 2025; Seattle, Washington, USA; Athletics first baseman Tyler Soderstrom (21) celebrates while running the bases after hitting a solo-home run against the Seattle Mariners during the eighth inning at T-Mobile Park. Mandatory Credit: Joe Nicholson-Imagn Images
Soderstrom leads MLB with nine home runs and is third among MLB first basemen with 19 RBI.
3. Spencer Torkelson, Detroit Tigers
Mar 27, 2025; Los Angeles, California, USA; Detroit Tigers first base Spencer Torkelson (20) reacts after hitting a solo home run against the Los Angeles Dodgers during the seventh inning at Dodger Stadium. Mandatory Credit: Jayne Kamin-Oncea-Imagn Images
Everything is clicking for the Tigers’ first baseman as he’s slashing .289/.391/.658 with seven home runs and 21 RBI.
4. Michael Busch, Chicago Cubs
PHOENIX, ARIZONA – APRIL 17: Michael Busch #29 of the Chicago Cubs bats during the game against the Arizona Diamondbacks at Chase Field on April 17, 2024 in Phoenix, Arizona. The Cubs defeated the Diamondbacks 5-3. (Photo by Chris Coduto/Getty Images)
A sophomore slump is nowhere in sight as he’s slashing .316/.381/.618 with five home runs, 15 RBI, and one triple.
5. Nathaniel Lowe, Washington Nationals
Mar 7, 2025; West Palm Beach, Florida, USA; Washington Nationals first baseman Nathaniel Lowe (33) hits a single against the New York Mets during the third inning at CACTI Park of the Palm Beaches. Mandatory Credit: Sam Navarro-Imagn Images
Lowe continues to anchor Washington’s offense and currently stands at three home runs and 16 RBI.
6. Jonathan Aranda, Tampa Bay Rays
Apr 5, 2025; Arlington, Texas, USA; Tampa Bay Rays first baseman Jonathan Aranda (62) hits a two-run home run during the sixth inning against the Texas Rangers at Globe Life Field. Mandatory Credit: Kevin Jairaj-Imagn Images
Aranda was on a tear last week, slashing .353/.421/.647 and bringing his season total to three home runs and 11 RBI.
7. Bryce Harper, Philadelphia Phillies
Mar 27, 2025; Washington, District of Columbia, USA; Philadelphia Phillies first base Bryce Harper (3) reacts after scoring a run during the tenth inning against the Washington Nationals at Nationals Park. Mandatory Credit: Reggie Hildred-Imagn Images
Harper leads MLB first basemen with five stolen bases while sitting at five home runs and 12 RBI.
8. Matt Mervis, Miami Marlins
Apr 13, 2025; Miami, Florida, USA; Miami Marlins pinch hitter Matt Mervis (36) hits a three-run home run against the Washington Nationals during the seventh inning at loanDepot Park. Mandatory Credit: Sam Navarro-Imagn Images
Miami’s offseason acquisition has paid dividends as he is third in home runs (6) among MLB first basemen.
9. Josh Naylor, Arizona Diamondbacks
Mar 30, 2025; Phoenix, Arizona, USA; Arizona Diamondbacks infielder Josh Naylor (22) at bat in the second inning against the Chicago Cubs at Chase Field. Mandatory Credit: Allan Henry-Imagn Images
Naylor’s hot start sees him slashing .316/.396/.544 with four home runs and 13 RBI.
10. Luis Arraez, San Diego Padres
SAN DIEGO, CALIFORNIA – MAY 28: Luis Arraez #4 of the San Diego Padres is congratulated in the dugout after scoring a run on a single by Jurickson Profar #10 during the fifth inning against the Miami Marlins at Petco Park on May 28, 2024 in San Diego, California. (Photo by Orlando Ramirez/Getty Images)
The three-time batting champion has produced a .294/.385/.647 slash line with three home runs and seven RBI. He leads MLB first basemen with 25 hits.
