Longtime big-league left-hander Rich Hill, who most recently pitched for the Kansas City Royals on July 28, will be appearing in the Oldtime Baseball Game Thursday night at 7 at St. Peter’s Field in Cambridge. The game was originally planned for Wednesday night, with Brock Holt appearing, but the change from Wednesday to Thursday made it impossible for him to attend.

Hill, who has pitched for a 14 teams in an MLB career that began in 2005, will become the first player in the 31-year history of the Oldtime Baseball Game to appear in the game and in the big leagues in the same season. Hill plans to go to bat and play in the field, but most likely will not pitch.

As an added twist, it was Red Sox vice president of scouting development Gus Quattlebaum, who is being honored at the Oldtime Baseball Game, who enlisted Hill to appear in the game. The Oldtime Baseball Game is played as a fundraiser for The Boston Home, a non-profit residence and national resource for adults with advanced neurological disorders, primarily multiple sclerosis. Quattlebaum was diagnosed with primary progressive MS in 2021.

Quattlebaum will throw out the first pitch at the Oldtime Baseball Game, with longtime Red Sox scout Steve Langone as his catcher. Langone played in the game from 1995 to 1999 during his days at Reading High School and Boston College.

The Oldtime Baseball Game has again partnered with The Boston Home, a non-profit residence and national resource for adults with advanced neurological disorders, primarily multiple sclerosis. In that spirit, this year’s special Oldtime Baseball Game honoree is longtime Red Sox vice president of scouting, development and integration Gus Quattlebaum, who was diagnosed with primary progressive MS in 2021.

The Oldtime Baseball Game features college and high school players from throughout Greater Boston and beyond, all of them decked out in colorful throwback uniforms that represent virtually every era in baseball history, from the 1890 Boston Beaneaters to the 1969 Seattle Pilots. Holt, who played for the Red Sox from 2013 to 2019, will be wearing the uniform of the 1920’s Chicago American Giants of the old Negro Leagues. The late Red Sox knuckleballer Tim Wakefield wore this same uniform when he pitched in the Oldtime Baseball Game in 2018.

The Oldtime Baseball Game was founded in 1994. Throwback uniforms were added in 1998. Used just once a year, they include such long-ago teams as the St. Louis Browns, Brooklyn Dodgers and Philadelphia Athletics. Negro Leagues uniforms include the Kansas City Monarchs, Detroit Stars and Cleveland Buckeyes. Teams from the 20th century minor leagues include the Hollywood Stars, Wichita Falls Spudders and Roswell Rockets.

The game includes two Red Sox uniforms that were worn in the big leagues by the late Jim Corsi, who played in the Oldtime Baseball Game in 2002 and ’03. For the fourth straight year Corsi’s son, Joey, will play in the Oldtime Baseball Game wearing one of his father’s uniforms.

Admission to the Oldtime Baseball Game is free. Fans are asked to bring a beach blanket or chair and camp out along the foul lines, as it is the crowd that makes the game so electric. Fans can look forward to enjoying a Wahlburger at the game as Dorchester native Paul Wahlberg and his team of A&E TV series fame provide concessions.

In the event of rain, the game will be played on Thursday, August 21 at 7 p.m.