The victory guarantees the 17-year-old a place at the first-ever Summer Youth Olympic Games (YOG) to be held in Singapore in August.
The Donegal man clocked an impressive 2:24:53.
English showed the maturity and poise of seasoned athlete, holding a solid position throughout the race.
On Saturday, West Waterford A.C. athlete Kate Veale finished fourth in the 5K walk in an outstanding time of 23.01.03, setting a new youth record and qualified her for a place in the Youth Olympic Team in Singapore.
