LONDON -- This is one of the reasons Total QBR was created.Colin Kaepernick has been dominating from the quarterback position. However, his statistics are not overwhelming. But the Total QBR rates a quarterback's overall impact on the game. Kaepernick's impact in the past two games for the San Francisco 49ers has been undeniable.In Week 7, Kaepernick had a Total QBR of 99.0 (out of 100) in a San Francisco win at Tennessee. It was the highest Total QBR of the season.