Simul endgame stress

Today I managed to catch a free simul online at ICC against chess coach IM Vojislav Milanovic. He played ten people at 30 30 time control. Please look at the final position and figure out why it's a draw. 

White will play 1. Kg1 and Black can't really make progress. If 1. ...Ra1 + 2.Kg2 (not Kf2 because after a2 Black has the threat of Rh1, if 3. Rxa2 Rh2+ wins) and White will keep his King on the second rank.
​If the Black King attacks the White rook, he will allow the f pawn to promote.

Holding endgames against titled players can be stressful. Don't forget to study endgames, otherwise you'll be stressing like me.

See you online: you can challenge me on ICC, my handle is Sloggi