49ers vs. Chiefs: Full Week 1 preseason grades & analysis

The San Francisco 49ers visited the Kansas City Chiefs in their first action of preseason football, with the 49ers coming from behind to win the game 24-17. Here are the postgame grades and analysis from the matchup.

In the inaugural game of the Kyle Shanahan-John Lynch era, the San Francisco 49ers walked away victorious after trailing for a majority of the game. Led mostly by reserve units, an 18-point fourth quarter propelled the 49ers to the win.

While the win is certainly something positive to draw from, it came after some rugged play on both sides of the ball with the first and second-team units. There were 17 penalties in total and the San Francisco offense failed to score a touchdown until the 13:31 mark in the fourth quarter.

As anticipated, the 49ers group of rookies all got lengthy stints on the field yesterday. And a number of them performed quite well too, an encouraging sign for the team.

For each position group on both sides of the ball, we’ll have a grade and a breakdown.