Phillips' triple off Guillermo Mota (0-2) tied it at 6. Joey Votto's single up the middle gave the Reds their 12th win in their final at-bat, the most in the majors.
The Reds opened a 1 1/2-game lead over idle St. Louis in the NL Central, the latest in a season that Cincinnati has been in first place since June 17, 2002, their final year at Cinergy Field. They finished 78-84 that year under manager Bob Boone.
Cincinnati has a streak of nine straight losing seasons, its longest in more than a half-century.