River Tiber gave Aidan O'Brien a record-extending 10th victory in a thrilling Coventry Stakes.Ryan Moore, odds-on to become top jockey at the Royal meeting, got on the board early and there was no hanging about in the six-furlong dash.Despite having won his first two starts over shorter trips, punters placed their faith in the Coolmore team, sending the son of Wootton Bassett off the 11-8 favourite for the juvenile Group Two.He travelled well throughout the race, tracking Frankie Dettori aboard Givemethebeatboys, yet Moore had to get serious two furlongs from home to roust his mount to go past.With that battle won, the strapping winner had to fend off Army Ethos, who flew under Hollie Doyle in the final 100 yards, with Bucanero Fuerte and Kevin Stott following him through to be a close-up third.Givemethebeatboys, sold for £1.1m at the Goffs London Sale on Monday evening, faded late on into fourth.O’Brien was registering his 82nd winner at the Royal meeting, equalling Sir Michael Stoute as the most successful trainer at the fixture.Coventry Stakes