I was 589-50 when I started the day on a 70 game win streak...I go to the store,get home log back in and do the update... And now I'm 589-52 but still on my streak...??The xbox was off and nobody else played so where did I get these 2 loses from?
Kind if sounds like you need to challenge yourself more...
My guess is perhaps the stats updated perhaps processed a few games that hadn't taken the first time around.
Or someone in the house is messing with you and played while you were gone :-)