Johnny Murtagh guided Sir Prancealot to impressive win in the Polypipe Flying Childers Stakes on the third day of Doncaster's St Leger meeting.
Bungle Inthejungle looked set to make every inch of the running as he continued to head the field entering the final furlong, but Murtagh timed to run on the 7-4 favourite to perfection.
He asked his mount to quicken up inside the distance and the response was immediate as Sir Prancealot got up to take the Group Two by half-a-length.
"He deserved it. We've taken on Reckless Abandon twice. he ran well at Ascot (in the Coventry) and he beat the rest of them in the (Prix) Morny but just got tired going to the line," said the winning trainer's son and assistant, Richard Hannon jnr.
"The natural thing was to come back to five, but he will get six and he's in the Middle Park so we're going to give him a go in that. You know for sure he'll run his race.
"He's very consistent, he's got a great attitude and an awful lot of ability. I think he will be better over six.
"We came back to five to win a Group race. Now we've done that we can go up to six for the Middle Park. The timing is perfect and he'll run a big race.
"He might get seven one day, but his future for now remains at six."
Sound Of Guns took third just three-quarters of a length behind Bungle Inthejungle.