After Ash and Morrison finished their battles, they both raced to see Johnny's battle against Tyson. By the time they got there, Johnny's Blastoise was defeated and Tyson's Donphan was defeated, as indicated by the scoreboard. Johnny was down to his Aggron while Tyson had Sceptile.
Johnny had trouble with Sceptile as Sceptile kept on using Detect and its speed to dodge his Aggron's Metal Claw. This caused Aggron to get tired out. Johnny had Aggron use Harden which gave Sceptile a chance to go for Solar Beam. Johnny saw this as an opportunity to finish Sceptile off by having Aggron use Metal Claw but Sceptile's Solar Beam finished charging and unleashed it at Aggron, defeating it. Tyson's victory allowed him to move on to the next round while Johnny was eliminated from the tournament.
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Aggron was used in a Double Battle round against Tyson's Sceptile. Thanks to Sceptile's use of Detect, Aggron was unable to lay an attack on it. Even though Aggron had a chance to finish Sceptile while Sceptile was charging for Solar Beam, it was not enough as Sceptile's Solar Beam was fully charged and it defeated Aggron.