I have actually posted this bug way back, there was a fix, and I recall thinking it was fixed. But apparently it's not.
The rivalry history summary (top of the page, counting totals and wins) is not always consistent. It seems it can get messed up if there are many different types of matches between the two teams. The totals are correct, but one column (the tournament column at least in my example below) is not correct.
For example, in
(/community/rivalry.aspx?team1=58839&team2=58988) the tournament total and wins for my team shows a zero. There is however a Cup match between the two teams on February 5, 2009. This game in fact is one of my most cherished wins ever, as it was a Cup final away (back when there was HCA in later rounds of the tournament) as a slight underdog. I want to celebrate it with a '1' on my row and the totals, please. :-)