British horse Debussy has won scored an upset over titleholder Gio Ponti to take out the Arlington Million.Courtesy of a rail hugging ride by William Buck, the John Gosden-trained Debussy beat Gio Ponti by a half-length.Debussy, who is owned by Sheikh Mohammed's wife Princess Haya, had won two races at home this year before travelling to the United States."I thought, 'Oh, no. I have so much horse, but I'm not going to have enough room," Buick said."But then the hole opened and we got it."Gio Pon

British horse Debussy has won scored an upset over titleholder Gio Ponti to take out the Arlington Million.

Courtesy of a rail hugging ride by William Buck, the John Gosden-trained Debussy beat Gio Ponti by a half-length.

Debussy, who is owned by Sheikh Mohammed's wife Princess Haya, had won two races at home this year before travelling to the United States.

"I thought, 'Oh, no. I have so much horse, but I'm not going to have enough room," Buick said.

"But then the hole opened and we got it."

Gio Ponti, ridden by Ramon Dominguez, was attempting to join John Henry (1981 and 1984) as the only two-time winner.

"I thought I had enough to hang on," said Gio Ponti's jockey, Ramon Dominguez.

"Once I got clear, the horse was idling a little bit. Maybe looking at the stands or something."

Gosden said he was thrilled to win after many years without success.

"He had nowhere to go," Gosden said.

"I think they just tired the last part and he's dashed up the rail and done it really well.

"I've been trying to win this race for 28 years."

The Group One Beverly D for mares went to Eclair de Lune giving Arlington chairman Richard Duchossois success in the race named for his late wife.