Points: Above and Below

Was just looking at my achievements page, and I noticed for both Halo 3 and ODST my points total was above average for the site, but the number of individual achievements I had in both games was below average. It's quite strange: out of 55 games, they're the only two games I've played that this is the case for. 
 
Anyone else have any games where this is the case? Where your points total is light orange, but your # of achievements is in the red.

I have it in Madden 08, my achievements are light orange but my points are a sliver in the red. It is odd but it also makes sense because most games have achievements that are worth different amounts of points.