In the finale of the three-game sweep by the Royals, Red Sox ace Curt Schilling surrenders 10 extra-base hits, tying an American League record. The nine doubles and homer equal the dubious mark set by Dale Gear (1901 Senators) and Luis Tiant (1969 Indians).

On August 10, 2006 — In the finale of the three-game sweep by the Royals, Red Sox ace Curt Schilling surrenders 10 extra-base hits, tying an American League record. The nine doubles and homer equal the dubious mark set by Dale Gear (1901 Senators) and Luis Tiant (1969 Indians).

Source:
Baseball Reference August 10
National Pastime
Retro Sheet
Hall of Fame
SABR Games Project
Replay The Game