SANTA CLARA — Colin Kaepernick statistically, at least, turned in the worst game of his brief NFL career against the Seattle Seahawks, yet coach Jim Harbaugh praised his starting quarterback Monday.

"He played the best and was the most productive person we had on offense," Harbaugh said of Kaepernick during his weekly news conference.

Kaepernick completed only 13 of 28 passes for 127 yards and no touchdowns. The Seahawks intercepted three of Kaepernick's passes, including one in the end zone, and sacked Kaepernick three times. Kaepernick finished with a passer rating of 20.1.

"I'm not disappointed in the way Colin played at all," Harbaugh said. "He did what he could."

Harbaugh pointed out that both quarterbacks struggled as a result of playing against two of the league's best defenses.

Sure enough, Seattle's Russell Wilson misfired on all six passes before the game was delayed an hour because of lightning, and he had one of his 19 passes intercepted and got sacked four times.

Kaepernick also rushed for a team-high 87 yards on only nine carries. Running backs Frank Gore, Kendall Hunter and Anthony Dixon amassed 13 yards on 11 carries combined.