Matt Fayers produced another quality run to win the U15 race at the London Cross-country Championships at Parliament Hill.
The Hillingdon AC teenager, who finished the track season ranked ninth in the UK over 1500m, tucked in behind the leader from the start of the testing 4km course.
The field soon spread and at the start of the second lap Fayers left behind the leader and his protection from the cold wind.
An athlete from Mansfield began to close but with 300m to go Fayers increased his pace to cross the line first in 14mins 18secs.
Hillingdon did not enter many juniors, saving them for this weekend's Metropolitan League fixture at Ruislip, but Carys Tetlaw (14.17) was 24th in the U13 girls event over 5km, while Claire Vizard (24.09) and Hanna Wells (25.20) were 14th and 17th in the 5km U17 race.
The senior men sent a strong team to compete over a tough 10km course and Richard Mann showed his continuing improvement by coming 20th overall and third in the U20 age group in 34.07.
Martin Bateman (34.41) was 27th, Dan Thompson (35.40) was 46th and Paul Williams (37.26) was 81st and together they brought the A team home in an excellent sixth place out of 50.
The B team was 30th thanks to Paul Leppard (93rd, 37.49), Steve Hirons (105th, 38.22), Stevan Dokic (156th, 41.05) and Richard Jenkin (182nd, 43.03). John Myall (189th, 43.33), John Bignell (201st, 44.22), Martin Searle (229th, 47.01), Brian Feldman (246th, 49.32) and Doug Milson (249th, 51.33) also took part.