In Orc Campaign Easy run by @MaraKaneC IGT time is 40:54. (In leaderboard it is 39:54).
In Rexxar Campaign Easy by @KodoHunter timer was launched and stopped incorrectly.
It must be launched when he select first mission in campaign menu screen, he launched it when lvl was loaded. It is about +14 sec.
It must be stopped after last cutscene, when screen turns black. He stopped it before the cutscene. It is about +14 sec too.
So, correct RTA time will be 51-40 +0-14 +0-14 = 52-08.
For Rexxar, the rules don't actually state when the RTA timer starts. When I started running, I copied the start time Lidernik, which was the only run on the boards at the time. All 4 current runners on the boards are using the same start time; when the first level has loaded.
For the end time, well, that one is inconsistent. Lidernik stops when Admiral is dead, Me & Jphpue stop at first black frame and Ilares stops at first black frame after the cutscene.
I don't really care if the RTA timings are changed, IGT is what matters anyways. But if they are, maybe fix the rules to be clearer while at it? And maybe clarify on how to calculate Rexxar's IGT, since you can't just check it from the post mission stats.
