Quarterback Mark Herrmann threw for 320 yards and two touchdowns as the San Diego Chargers ended an 0-11 drought against division opponents in the AFC West with a 31-20 victory over the Kansas City Chiefs today.

It was the first time San Diego defeated a division rival since beating Kansas City on Dec. 11, 1983. Both teams are 3-3.

Herrmann's 10-yard touchdown pass to Eric Sievers in the fourth quarter capped a nine-play, 80-yard drive that gave the Chargers their first lead, at 24-20.

Herrmann was six for six for 71 yards during the drive and finished 26 for 36 for 320 yards.

San Diego's final score came with 6:17 remaining on Tim Spencer's one-yard touchdown run.

Herrmann, shaking off two first-half fumbles, helped the Chargers gain a 17-17 halftime tie as they rallied for three second-quarter scores. The five-year veteran, who assumed the starting role two weeks ago after a knee injury to Dan Fouts, threw a 39-yard touchdown pass to Charlie Joiner midway through the quarter for the Chargers' first score. Kansas City 3 14 3 0 20 San Diego 0 17 0