Admire Derby (アドマイヤ・ダービー, Adomaiya Dābī) is a character appearing within the Yu-Gi-Oh! 5D's manga and a contestant in the D1GP, having reached the tournament's second stage.
An omake from the tankōbon volume 4 revealed that Admire Dueled against Tetsu Trudge and won, obtaining the Level 8 Star Ticket. He also defeated Adolf Mueller to obtain the Level 3 Star Ticket, shown to be claiming that he'd leave Mueller in the dust during the Duel.
He later is shown to have obtained the Level 3, 5, 8 and 9 Star Tickets, (over double the required minimum of twelve) and he was the first Duelist to advance to the final stage of the tournament by passing through the Duel Gate, passing through a smaller door. Upon doing so, his scream of anguish was heard. It was later shown that he'd been imprisoned in a card by Lazar, implying that he'd been defeated by him in a Duel.