There have been few better starts to a professional career than the one Boston Red Sox third-round pick (2025) Anthony Eyanson has had. After Monday's reported promotion to Double-A, Eyanson's meteoric rise continued when Baseball America released its updated Top 100 prospects list on Wednesday morning. 

After entering the season unranked, Eyanson saw a massive jump, not only into the top 100, but into the top 50, checking in at No. 48 in Baseball America's first major update of the season. 

The Red Sox assigned Eyanson to High-A Greenville at the beginning of the 2026 season to make his professional debut, where he would immediately prove he was too advanced for the level. Across five starts in Greenville, Eyanson allowed just one earned run on seven hits in 20.1 innings, while striking out 34.

His 47.9% strikeout rate ranks highest in the South Atlantic League among pitchers with at least 20 innings pitched by a wide margin, with the next-closest pitcher, Orioles prospect JT Quinn, striking out 36.7% of the batters he's seen. Eyanson has also featured pinpoint control in the first five starts of his professional career, walking only three batters, all three of which came in his most recent start. 

After allowing a solo home run in the third inning of his professional debut, Eyanson has yet to allow another run to score, riding a 18 inning scoreless streak, a streak that he will be carrying with him to Double-A. 

The Red Sox selected Eyanson with their third-round pick in the 2025 MLB Draft out of Louisiana State University (LSU), agreeing to a $1.75 million bonus, more than $800,000 over the $902,200 slot value associated with the No. 87 pick.

Eyanson currently ranks as SoxProspects.com's sixth overall prospect in the Red Sox organization, with stock rapidly rising thanks to a significant jump in velocity. According to SoxProspects, he is a "Potential mid-rotation starter with ceiling for more if his improved stuff from Spring Training 2026 carries over into the season. Was seen as more of a high-floor, lower-ceiling type coming out of college."  

After starting the season ranked as the No. 33 overall prospect, Red Sox starter Connelly Early has reached 50 innings pitched at the major league level, graduating from prospect status, making him no longer eligible for the rankings. Overall, the Red Sox have four prospects who have earned rankings from Baseball America. 

Boston's top-rated prospect is starter Payton Tolle, who, after entering the season at No. 11, jumped into the top 10 prospects in the sport, checking in at No. 8. Though Tolle will quickly join his fellow rookie starter in graduating from prospect status with just 16 more innings pitched at the big league level. 

Shortstop Franklin Arias is on a meteoric rise of his own, thanks in part to a newfound power surge. Arias was one of Baseball America's biggest risers in their latest update, jumping from No. 46 into the top 20. 

2025 first-round pick, Kyson Witherspoon, was one of two Red Sox prospects to see their ranking dropped in the most recent update, falling from No. 66 down to No. 73. Witherspoon, has made six starts for Greenville to start his professional career, allowing 21 runs (17 earned) on 23 hits in 21.2 innings, allowing opponent batters to hit .280 against him while striking out 25.

Starter Juan Valera, who entered the Top 100 in mid-April, has fallen out of the rankings thanks to an elbow injury. 

The Red Sox are 15-21 and in last place in the American League East. They will look to finish off a series sweep of the Detroit Tigers on Wednesday night. First pitch from Comerica Park set for 6:40 p.m. ET. 

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