About the tie...
I have done some forced battles to tie. First with perish song, the singer and the slower pokemon won. Then, with life orb damage, the attacker won although it die too by the damage. Finally, I achieved a draw, both trainers pressed "run".
PD: my english level is low. Sorry.
60-53940-33112 Perish Song.
52-66455-51927 LO Attacker.
69-36126-53320 Run both trainers.