Complex sentence: During Ramsey's 1999 season, he set 20 Tulane passing records, including the record for yards, attempts, and completions in a single season, and scored 25 touchdowns, the second-most ever for a Tulane player.
Split into simpler sentences: During Ramsey's 1999 season, he set 20 Tulane passing records, including single season records for passing yards, attempts, and completions. In that season he threw for 25 touchdowns, the second-most ever for a Tulane player.