Bristol De Mai produced a stunning display of powerful front-running as he crushed all the other entrants to take the Betfair Chase at Haydock.
Jockey Ruby Walsh faces a stint on the sidelines following a fall at Punchestown and a resulting broken leg.
25/1 outsider Splash of Ginge caused an upset to take the honours in the BetVictor Gold Cup at rain-drenched Cheltenham.
Frankie Dettori claimed a record fifth Prix de l'Arc de Triomphe with victory on John Gosden's Enable at Chantilly on Sunday.
Ireland batsman Gary Wilson says the players are to blame for John Bracewell's exit as the national team's head coach.