sentences:  Ryan Tannehill holds the record for completion rate in a perfect game, throwing 18 of 19 for 94.7% in his 2015 perfect game.Chris Chandler has the best rate for a game with at least 20 pass attempts (23 of 26) for 88% completed in his 1995 perfect game.Seven quarterbacks have accomplished a perfect passer rating with more than 400 passing yards.