Saffold was the #3 guard in the league at 87% in holding blocks for at least 2.5 seconds (the stat that was mentioned above) and Sullivan was at 5 for centers at 85%. Blythe was not listed (not in the top 10 at guard). Only five players were at 90% or higher and it is possible that Whitworth was #1 in the league. He was the top tackle at 92% and Linder was the top center at 92% so I am not sure who is better (when you take it thousands). Some of this has to do with competition after four weeks (which included playing Oakland, Arizona, SD minus Bosa, and Minnesota minus Griffen) Haverson was at 96% (#1 OT) and Whitworth at 93% (#2 OT).