Dave Brain‚ who hit three triples in a game in Pittsburgh for St. Louis on May 29th‚ repeats the performance for Pittsburgh against visiting Boston. The Pirates win in 10 innings‚ 5 – 4‚ with Brain’s triples coming in the first 9 innings. He is the only major league player to perform the feat twice in one season. The two performances also ties the career major league record: no one else in the 20th century will have two three-triple games in his career.

On August 8, 1905 — Dave Brain‚ who hit three triples in a game in Pittsburgh for St. Louis on May 29th‚ repeats the performance for Pittsburgh against visiting Boston. The Pirates win in 10 innings‚ 5 – 4‚ with Brain’s triples coming in the first 9 innings. He is the only major league player to perform the feat twice in one season. The two performances also ties the career major league record: no one else in the 20th century will have two three-triple games in his career.

Source:
Baseball Reference August 8
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game