Triple-A · International League · Worcester, Massachusetts, US · Polar Park
Worcester Red Sox
The Boston Red Sox's Triple-A affiliate since relocating from Pawtucket in 2021, the Worcester Red Sox — known as the WooSox — play at Polar Park in the Canal District, led by fifth-year manager Chad Tracy, who surpassed 300 career Worcester wins in 2025.
1970–2020
The Pawtucket Red Sox
50 years at McCoy Stadium
The franchise operated as the Pawtucket Red Sox from 1970 to 2020, playing at McCoy Stadium in Pawtucket, Rhode Island. The PawSox, as they were affectionately known, became one of minor league baseball's most beloved and successful organizations, serving as the Boston Red Sox's Triple-A affiliate for half a century.
McCoy Stadium was the site of the longest game in professional baseball history — a 33-inning marathon between Pawtucket and Rochester on April 18-19, 1981, that lasted 8 hours and 25 minutes. That game, featuring future Hall of Famers Cal Ripken Jr. and Wade Boggs, became a legendary piece of baseball lore and cemented the PawSox's place in the sport's collective memory.
The PawSox produced an extraordinary list of future Red Sox stars: Roger Clemens, Nomar Garciaparra, Manny Ramirez, Dustin Pedroia, Mookie Betts, and many more all passed through Pawtucket on their way to Fenway Park. The franchise was a consistent attendance leader and a cherished part of Rhode Island's sports landscape. The decision to relocate to Worcester after the 2020 season was driven by the need for a modern ballpark that McCoy Stadium's aging infrastructure could no longer provide.
Key Facts
- Pawtucket Red Sox operated from 1970-2020
- Site of the longest game in professional baseball (33 innings, 1981)
- Roger Clemens, Mookie Betts among countless PawSox alumni
- Relocated to Worcester after 2020 season
2021–Present
The Worcester Red Sox
A new home in the Canal District
The franchise relocated to Worcester, Massachusetts, in 2021, adopting the Worcester Red Sox identity and the WooSox nickname chosen by fan vote. Polar Park, a $160 million, 9,508-seat ballpark in Worcester's Canal District, opened on May 11, 2021 and immediately earned praise as one of the best new stadiums in minor league baseball.
The move was spearheaded by Larry Lucchino, the former Boston Red Sox president and CEO who had previously helped develop Camden Yards in Baltimore and Petco Park in San Diego. Polar Park was designed to serve as the anchor of a broader redevelopment effort in the Canal District, and the surrounding area has seen significant residential and commercial development since the ballpark's opening.
The WooSox have continued the franchise's tradition of developing top Red Sox talent. Triston Casas, Jarren Duran, Bobby Dalbec, and other key contributors to the major league club all played meaningful stretches at Polar Park. Manager Chad Tracy, who took over in 2022, has posted a 309-285 record through 2025 and provides steady leadership. The franchise was sold to Diamond Baseball Holdings in 2023 while retaining local investors, ensuring the WooSox remain connected to the Worcester community.
Key Facts
- Polar Park opened in 2021 ($160 million, 9,508 seats)
- WooSox nickname chosen by fan vote
- Triston Casas, Jarren Duran among early WooSox alumni
- Sold to Diamond Baseball Holdings in 2023