HaloWaypoint Stats not matching up with in game?

For some reason in game it shows I have a 2.0 K/D Ratio with 28,840 kills and 12,418 deaths, but when I log into Halo waypoint it shows I have a 1.98 k/d with only 24,615 kills and the same amount of deaths… As if some kills werent counted for… Curious to see if there is an issue with Waypoints Stat tracking or in game has an issue… If someone knows anything about it let me know below

Waypoint stat tracking has always been way off. I just never trust it anymore.

Yeah, I think Waypoint calculates the ratios slightly differently.
I think the K/D might be completely overall, covering everything you play, Warzone and Customs included.