Andrew Luck became the first Colts quarterback to run for two touchdowns in a game since 1988, leading Indianapolis past Cleveland 17-13 on Sunday.
Indy (3-3) has already won one more game than it did in 2011.
Brandon Weeden threw for 247 yards and two touchdowns, but Trent Richardson, who tried to play through a rib cartilage injury, sat out the second half after running eight times for 8 yards in the first half. The Browns (1-6) have lost 11 straight road games.
Luck scored on runs of 3 and 5 yards in the first half.
Weeden threw a 14-yard TD pass to Greg Little in the second quarter, and a 33-yard TD pass to Josh Gordon in the third quarter.
Adam Vinatieri added a 38-yard field goal for Indy.