I only started watching it sporadically today, and about half an hour ago they were at Blue's last Pokémon (Blastoise) and I had to go away to dinner. I came back now and was faced with "THE END". Looks like they managed to do it! :D
...it's a shame I missed them actually winning, but it was awesome to watch most of their final attempt and to see them cut through Bruno's, Agatha's, Lance's and almost all of Blue's team without too much trouble. Especially after seeing some of the more laughable attempts earlier. Yeah the level 81 Zapdos did most of that work easily, but it was watching them make it do the work that was great.