Thanos is rested after each round. Win by KO. Most powerful version of Thanos without any cubes, gems or HOTU
Round 1: Batman, Superman and Wonder Woman
Round 2: Iron Man, Thor, Captain America, Namor
Round 3;Fatality, Iroque, Saint Walker, Hal Jordan, Sinestro, Larfleeze and Atrocitus
Round 4: Aegis, Tenebrous and Mephisto in Rigellan space.