INDIANAPOLIS (Reuters) - Quarterback Peyton Manning threw three first half touchdown passes as the Indianapolis Colts raced to a 31-3 victory over the Baltimore Ravens on Sunday.

A week after struggling to win against the then-winless Houston Texans, the Colts (3-2) had little difficulty with the Ravens (2-3), cruising to a 31-0 third-quarter lead to grab their first home win of the season.

Manning assisted Marvin Harrison for first and second quarter touchdowns and threw 22 yards to Reggie Wayne for another first quarter score.

Harrison covered 67 yards for his first touchdown reception and five for his second.

The Colts wrapped up the win with Dominic Rhodes's one-yard run in the third quarter while Baltimore registered their sole score when, with just over one minute left in the third, Matt Stover kicked a 37-yard field goal.

Colts starting running back Joseph Addai limped off in the first quarter with a leg injury, but Manning's passing kept Indianapolis in control.

(Writing by Gene Cherry in Raleigh, North Carolina; editing by Padraic Halpin)