Teaforthree and JT McNamara took top honours in the Diamond Jubilee National Hunt Chase at Cheltenham.
The 5-1 favourite sat handy throughout the four-mile test and produced some prodigious leaps in the hands of his top amateur. While plenty were struggling down the hill, Teaforthree continued to pour it on, with another prominently ridden horse, Four Commanders, his closest pursuer under Nina Carberry.
There was little to choose between the pair jumping the final fence, but it was Teaforthree who got away from it the quicker and he stayed on up the hill to score by two lengths, giving trainer Rebecca Curtis her first Festival winner.
Harry The Viking, part-owned by Manchester United manager Sir Alex Ferguson, finished off his race strongly to beat Four Commanders to the runner-up spot.
McNamara, claiming his fourth victory at the Festival, said: "He jumped a little bit to the right, but he never missed a beat. It's unbelievable, and it's great to ride a winner at Cheltenham."
Curtis added: "It's very special (to have a Cheltenham winner). It wasn't the plan to go out and make the running, but he settled well and we know he jumps and stays. It doesn't happen too often (winning at the Festival) and I'm going to enjoy it. It's great just to have runners, let alone a winner.
"He is probably better with cut in the ground, but going four miles you can get away with it. He's a brilliant jumper."
When asked about his long-term prospects as a Grand National contender, the Pembrokeshire handler added: "He stays well and jumps well and you've got to have that if you are to be a National horse."