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Colin Kaepernick finishes with lowest adjusted completion percentage of morning games

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I saw some positives from Colin Kaepernick, but he’s got a lot of work to do in the coming weeks.

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Colin Kaepernick had himself a day in Week 6. And by “had himself a day,” I mean we saw a little bit of everything. We saw the arm strength, we saw the inaccuracy, we saw the running. I thought he showed a little more pocket presence than in the past, but overall, there was a mix of good and bad on Sunday.

Pro Football Focus posted their Week 6 grades, and their look at the 49ers-Bills game included some thoughts on Kaepernick. They acknowledged his running, but they had him dead last among 10 a.m. quarterbacks in adjusted completion percentage. That stat is broken down as follows:

Adjusted Completion Percentage = (Completions + Drops) / (Pass Attempts – Spikes – Throwaways – Batted Balls – Balls disrupted by a QB hit)

Completion percentage by itself has some value, but lacks a lot of context. PFF’s ACP stat tries to add some context to a player’s completion percentage. Here’s what they had to say about Kap:

It was an ugly season debut for Kaepernick, who in addition to being inaccurate for much of the day also made a few careless plays. Kaepernick’s 59.3 adjusted completion percentage was the worst among all QBs through the 1:00 pm Sunday games and he really struggled to throw the ball when Buffalo was able to apply pressure, completing just four of 11 passes for 43 yards to go with a 48.7 QB rating while under duress. Kaepernick did have success running the football, especially on scrambles where he was able to gain 53 yards on four attempts, but he’s going to need to improve both his decision-making and his accuracy as a passer if he’s going to provide the spark that this offense desperately needs.

PFF broke down Kaepernick’s numbers as follows when pressured and not pressured, and when blitzed and not blitzed. Turns out the Bills brought very few extra pass rushers.

No pressure: 9/18, 144 yards, 1 TD, 95.6 QB rating (3 runs)
Players under pressure: 4/11, 43 yards, 3 sacks, 48.7 QB rating (1 run)
Not blitzed: 13/27, 187 yards, 1 TD, 3 sacks, 83.4 QB rating (3 runs)
Blitzed: 0/2, 39.6 QB rating (1 run)

ESPN posted this tweet at halftime, with the 49ers trailing 17-13.

I don’t know what PFF’s first half numbers showed, but if these are remotely similar, it shows had badly things turned in the second half. I honestly think we saw some things Kaepernick can build on with more playing time. But if we do not see an improvement in the accuracy in the coming games, it will just be back to more of the same.

Of course, whether this goes well or not, odds are pretty good the team will be looking for multiple quarterbacks next offseason. What a time to be alive, 49ers fans!