Officially speaking: Inside the numbers

Posted by ESPN.com's Mike Sando

joe_cool585 sized up the referee breakdowns from Week 5 and said, "The real question is, how many of each referee's challenged calls have been overturned?"

Easy enough.

Rookie referee Don Carey still holds the league lead for reversals, but the field is gaining on him. Carey suffered two reversals in Week 1, three in Week 2, one in Week 3 and none in Weeks 4 or 5. He is one of eight referees -- there are 17 -- to work each week this season.

Carey, second-year ref Al Riveron and veteran Ron Winter have faced a combined 35 coach- and booth-initiated challenges this season. Veteran Walt Anderson has faced none. Winter's stat line stands out for its unusually low reversal rate. Winter has reversed only one of the league-high 14 challenges he has faced while working only four games. Weird.

I've asked officiating director Mike Pereira about these sorts of disparities in past seasons. He has basically said he doesn't care about the numbers as long as officials are making the correct calls. I like replay stats because reversals document those errors referees acknowledge.

Pereira covered a few controversial plays from Week 5 in his weekly Official Review segment. I thought his explanation for the weird taunting call in the Patriots-Broncos game held up better than expected. It sure looked "fishy" (Pereria's words).

I've been tracking replay stats for years. ESPN Stats & Information also tracks penalty stats by crew. Terry McAulay's crew has flagged offensive linemen only six times this season. The crews of Jerome Boger, Anderson, Winter, Walt Coleman, Ed Hochuli and Scott Green have each called at least 23 penalties against offensive lines. That's an aspect of officiating I'll explore in the coming weeks.

The crews of Coleman and Hochuli have each called 10 penalties for offensive holding against offensive linemen. The crews of McAulay (3), Don Carey (3), Riveron (3) and Peter Morelli (2) have combined to call just 11.