HERE are the stamina upgrades beyond level 40, if anyone else here is curious, since this site FAILS to give the FULL results. The game's only been out for 3 years guys.... Embarrassing. Update this crap. ALSO, while you do have 161 stamina at level 50, THAT IS MISLEADING. Okay... You get one point of stamina at these levels of endurance... Lvl 46, Lvl 52, Lvl 58, Lvl 64, Lvl 70, Lvl 76, Lvl 82, Lvl 88, Lvl 94 and Lvl 99. All are in increments of 6 levels except for the last which is in 5. Who runs this site???