A Grand Fight for Winning! (Japanese: 決着ライバル対決！ヒカリＶＳノゾミ！！Decisive Rival Showdown! Hikari VS Nozomi!!) is the 177th episode of the Diamond & Pearl series, and the 643rd episode of the Pokémon anime. It first aired in Japan on May 20, 2010 and in the United States on October 9, 2010.
The grand finale is under way at the Pokémon Contest Grand Festival, and it's sure to be an unforgettable battle! Just as they hoped, longtime friends and rivals Dawn and Zoey are facing off against each other for the title of Top Coordinator. And since each of them is using a Pokémon that the other has never battled against, the round promises to be full of surprises!
Zoey's Gallade and Glameow start off strongly, displaying Zoey's brilliant strategic mind. But the team of Dawn, Piplup, and Togekiss is formidable indeed, and as we near the end of the battle, both sides appear to be evenly matched.
Time is called while the battle is still in full swing, and the two are still neck-and-neck. When points are tabulated, Zoey's total barely edges out Dawn's, and so Zoey is declared Top Coordinator!
Dawn has learned a lot on her journey already and she takes losing in her stride, bidding farewell to Zoey. Then Ash learns that Volkner, Leader of the Sunyshore Gym, has invited Ash back for their Gym Battle. So our heroes set off for their next adventure, with a cheerful Dawn as part of the gang!
Dawn starts out with having Piplup jump on Togekiss's back and Togekiss flying up and using Aura Sphere. Piplup surrounds the Aura Sphere with Bubble Beam. Zoey has Glameow use Shadow Claw to cut the Aura Sphere in half and Gallade uses Psycho Cut to pop the Bubble Beam into a circling sparkling show causing Dawn to loses points as she stares at the sparkles in a daze while Fantina admires it greatly. Togekiss flies towards Gallade and Glameow then flies up. While distracted, Piplup starts to use Hydro Pump, however Zoey has Glameow use Fake Out. Glameow leaps at Piplup causing him to flinch, and Glameow then slams its paws together sending Piplup flying. Dawn loses more points now having 3/4ths of her full score. Piplup recovers and Zoey has Gallade use Vacuum Wave on Togekiss. Dawn tells Togekiss to use Air Slash. Togekiss dodges the Vacuum Wave and fires the Air Slash but Gallade back-flips and dodges it. Zoey and Gallade look up at Togekiss, and Zoey knows not to underestimate it. Both Dawn and Zoey lose points.
Gallade uses Signal Beam and Glameow uses Iron Tail. The Signal Beam hits Glameow's tail and Glameow spins its tail creating a spinning whirlpool stream of Signal Beam. Piplup reacts with Whirlpool and Glameow fires the Signal-Tail combination. Togekiss uses Aura Sphere on Whirlpool and Whirlpool glows like Aura Sphere. The two attacks collide and creates a beautiful fireworks display. Dawn and Zoey lose points; Dawn at 1/2 her original and Zoey at 3/4ths hers. Gallade uses Swords Dance, increasing his attack power while Togekiss uses Safeguard while spinning; Zoey loses points. Glameow charges at Togekiss with Shadow Claw and Dawn wonders why Zoey would use a Ghost-type move against a Normal-type like Togekiss. Togekiss charges at Glameow with Sky Attack and Gallade begins using Psycho Cut. Piplup retaliates with Peck and collides with Gallade creating a bright flash. In the flash, Glameow jumps past Togekiss and lands on its tail to bounce onto Togekiss's back. After the flash fades away, Dawn wonders where Togekiss is only to find her in the air, flying around in panic trying to get Glameow off her back. Dawn loses points. Johanna comments on Zoey's strategy and Ash tells Togekiss and Dawn to hold on. Glameow uses Thunderbolt but Togekiss's Safeguard blocks it, surprising both Zoey and Glameow. Fantina comments how wonderful it was and Dawn and Zoey lose points; Zoey a little bit under half and Dawn at 1/4th her original.
Dawn tells Piplup to help Togekiss and Zoey tells Gallade to block him. Gallade uses Vacuum Wave but Piplup dodges it with his spin technique and forward flips onto Gallade's head into the air. Zoey is shocked and Piplup uses Hydro Pump to knock Glameow off Togekiss's back. Togekiss swings underneath Piplup and soars away with him, and Zoey loses points. Gallade uses Psycho Cut but Togekiss easily dodges. Princess Salvia, Freesia, Lila, Candice with her class, and Kenny are seen watching the final on TV. Zoey has Gallade use Psycho Cut again to separate Dawn's Pokémon and Togekiss flies straight up to dodge. However the attack follows them and Piplup can see it gaining speed. Before it can hit, Piplup shoves off Togekiss's back with his feet, pushing both of them clear as the attack flies past between them but separating them as Zoey wanted. Dawn gets anxious and has Piplup initiate Whirlpool as he falls while Togekiss charges towards Gallade and Glameow then flies upward in an attempt to distract Zoey. Piplup fires the Whirlpool but Glameow catches it with Iron Tail and while Togekiss flies away with Piplup, Gallade disperses it with Vacuum Wave creating a beautiful sparkling effect.
Dawn tells Piplup to use Peck and Togekiss use Sky Attack. Togekiss glows and charges then Piplup hops on Togekiss's head and his beak glows and grows. Piplup's beak shines a white light that turns red and surrounds both Piplup and Togekiss with Piplup's beak the only thing not in the red light; the two looking like a rocket or missile being launched with the beak being the rocket/missile and the red light being the fire. Fantina comments on the combination and Zoey loses points, now being a little bit behind Dawn. Zoey tells Gallade to use Psycho Cut and Glameow to use Thunderbolt. Gallade jumps and initiates Psycho Cut while Glameow lifts its tail up. As Gallade lands on Glameow's tail, Glameow uses Thunderbolt and gives Psycho Cut an electric charge. Gallade jumps up and Dawn becomes excited and cheers Togekiss and Piplup on. Gallade fires the electrified Psycho Cut and still shots of Piplup on Togekiss, Gallade, Glameow, Zoey, then Dawn flash. Togekiss and Piplup collide with the Psycho Cut and a major explosion erupts along with a bright flash. Togekiss and Piplup are stumbling backwards and Gallade is falling backwards. Zoey and Dawn try to stand on their feet as the sheer force of the explosion is pushing them back. Togekiss and Piplup land on their feet while Gallade lands and gets in a battle pose. Dawn and Zoey both lose points, the smoke clears, and time runs out. Dawn and Zoey quickly look to the board and it is revealed that while both only have a few points left, Zoey has a couple of more than Dawn, and is declared the winner of the Grand Festival. Dawn looks disappointed and everyone cheers for Zoey. Ash, Brock, Johanna, and Pikachu are sad that Dawn lost. Gallade and Glameow hug Zoey and Dawn picks up Piplup. She tells Piplup and Togekiss they both did a great job and congratulates Zoey.
Jessie is furious that Dawn lost and decides to quit Contests and throws away her Jessilina costume, stomping away as she decides to rededicate herself fully to Team Rocket and capturing Pikachu. Zoey is awarded the Ribbon Cup and the title of Top Coordinator and the Sinnoh Grand Festival comes to an end. Dawn finishes changing and comes out of the dressing room to find her proud mother waiting in the hallway with her friends. She hugs her being happy that she was there and gives her back the Ribbon she gave her before her journey. Dawn says she doesn't need it anymore as she now has her own. Nurse Joy then appears and informs Ash that she took a call from Volkner, to pass on that the Sunyshore CityGym is fully repaired and he will be waiting for him. Ash becomes excited knowing he will soon be battling for his final Badge. Dawn and Zoey are now outside talking and Nando comes out and congratulates the two on a fine battle before leaving. Zoey says she is going back to Snowpoint City as Candice is going to be throwing a party in her honor, and tells Dawn that she is welcome to accompany her, but Dawn says she is going to stay with Ash and support him during the Sinnoh League. Zoey tells Dawn goodbye and leaves. Dawn then sends out Buneary, Pachirisu, Mamoswine, Cyndaquil and Togekiss and thanks them, along with Piplup, for all their hard work getting into the Grand Festival and for the performances that got her to the final before telling her trusted partners and friends that they will do even better in the next one.