Complex sentence: The highlight of Grove's 1940 season came on August 11 against Tulsa; he pitched a complete game that lasted twelve innings, winning the game 1--0 against hall of famer Dizzy Dean.
Split into simpler sentences: The highlight of Grove's 1940 season came on August 11 against Tulsa. In the game, Orval Grove pitched a complete game that lasted twelve innings, winning the game 1--0 against hall of famer Dizzy Dean.