Drizzle turned to heavy rain as the afternoon progressed resulting in some muddy-faced riders.
There were strong performances from the two girls taking part in the under-6 race where Sienna Raimondo, undefeated this season, won by 19 seconds overall from first-placed boy Eden Hannah.
Tilly Robinson, in her second race, was 90 seconds behind Raimondo, but still took fourth overall in a field of nine.
Harry Gordon and Sonny Evans took second and third places respectively, reflecting their position in the overall championship.
Marley Raimondo, again undefeated this season, won by a significant margin from Jack Hutton, who finished seven seconds ahead of Hugo Nowacki.
This largely reflects the championship standings in this category, save for Ethan Mwanga who takes third position ahead of Hutton by three points, with one race remaining.
Eleanor Docherty, the day’s only competing U8 girl, was sixth overall.
As the rain increased and with championship leader Jacob Mauger absent, all eyes were on Gabriel Raimondo in the U10 race and he held on firmly throughout having taken an early lead.
In the girls’ race, Evie Worth took first place to continue her run of success and establishing herself firmly at the top of the championship. Emma Mwanga is second and gained a creditable seventh position overall in the race.
The U12s had the race to themselves this week, in what is currently the most competitive and most attended of all the JCAYA categories.
Max Mahony took an early lead that he soon relinquished under pressure from Ollie Hamon, who extended his gains to take first place over Mahony by 16 seconds.
Third place overall went to Hannah Worth after jostling for position with third-placed boy Alex Read.
Fifth and seventh places overall went to Emily Le Gros and Libby Hart, to make up second and third respectively in the girls’ race.
The final race of the HSBC supported season is on Sunday 18 March at Val de la Mare starting at 1 pm and newcomers are welcome.