Winstrate family
The Winstrate Family (Japanese: カチヌキ Kachinuki) are four family members who are obsessed with Pokémon Battles and battling. Victor is the father, Victoria the mother, Vivi is the daughter, along with a son, Vito. Grandma Vickey also lives with the family. They live in a house on Route 111, north of Mauville City.
Their son, Vito, left to challenge the Pokémon League of Hoenn.
In the Anime
On their way to Fallarbor Town, Ash, May, Brock, and Max come upon the Winstrate Family. After giving them a tour of their house and yard, they decide to challenge them to a 4 on 4 battle. First, Brock battles against Victor. Brock's Mudkip is defeated by Victor's Zigzagoon. Next, May, who uses Beautifly, fights against Victoria and her Roselia. May wins this round by using a strategy similar to that of the one she used against Drew and his Roselia in the Slateport Pokemon Contest. In the next round, Max borrows Ash's Corphish to fight against Vivi and her Marill. Corphish defeats Marill, giving Max the win, but it is a hollow victory, as he had a crush on Vivi and she now shows no interest in him. For the final round, Ash and Pikachu go up against Vicky and Camerupt. Team Rocket and the other Winstrate, Vito, interfere with the battle, but Vito eventually stops helping Team Rocket to save his family. The match between Pikachu and Camerupt comes to a draw, and Ash and Co. leave.
Pokémon
In the Games
The Winstrates are a family who challenge any strong Trainer they meet. They fight in a row, one after the other. According to Vivi, Vito was the best Trainer. Then Grandma Vicky, herself, her mother, and her father.
They use a Macho Brace to toughen up their Pokémon, but they'll give it to the main character of Pokémon Ruby, Sapphire or Pokémon Emerald, if they're defeated.