Firebet completed a hat-trick for Richard Fahey in the valuable Blue Square Stakes (Heritage Handicap) at Newmarket under Paul Hanagan.
The three-year-old was sent off at 7-1 having scored on his first two starts for the Malton handler, and travelled nicely throughout the mile-and-a-quarter heat.
Hanagan began to ask his mount a question from the furlong marker, but he quickened smartly once meeting the rising ground and only had to be kept up to his work to beat Roman Republic by a length and three-quarters.
The jockey said: "He did it really well. He gave me a nice surprise because I thought he'd be a bit keen, but he was the total opposite.
"It slowed up a little bit mid-race, but he won going away. He's just a very good horse. He seems to be improving with every run."
Fahey added: "He's only raced three times for us and has won each start. He's really progressed through handicaps and I may look at running him at Maisons-Laffitte in a Group Two race on July 22. He was very buzzy when he first came, but he's a lot more relaxed now."