Competing for Shaftesbury Barnet Harriers, Nachshen followed this by taking the South of England U15 800m indoor championship in 2:15.03.
“The 800m was a tactical race rather than a time trial,” said Nachshen, “and altogether it has been a really good start to the year.”
Lia Radus set an 800m PB of 2:18.70 at the Lee Valley New Year Open and placed second at the Middlesex U20 cross country Championships.
Radus, 16, commented: “I was very happy with my solid start to the season in the 800m.