Changes to Personal Stats

If I’ve been playing Halo 4 and only sticking to BTB and Inf Slayer and then some asinine noob (likely being a brother of mine) goes and plays CTF and King of the Hill, in the process going 132-131 for k/d and 4-8 for win losses, is there any way that I can get the stats for these two gametypes eliminated from my record? I only noticed this anomaly when I checked my stats on this site. It’s ticking me off to no end that my k/d ratio is being wrecked by someone else’s gameplay.