Promising Guaranteed two-year-old Pas Guarantee sat parked throughout before posting his third success at Charlton on Sunday (November 21).
The gelding, who started from the outside No 6 gate, pulled out plenty in the dying stages to win by a metre.
Guaranteed Secret, also by Guaranteed, finished a close third.
Pas Guarantee clocked a career-best 1:59.3 for 2100 metres.
He tramped the last 800 in a sharp 56.7.
Bred and raced by Sue-Ellen Thompson, Pas Guarantee is out of the Listed winner Dieing Secret (1:57.1), a Live Or Die mare.