Hercules Wimbledon's top woman sprinter Emily Martin warmed-up for the coming summer track and field season by twice improving on her best time for the 60m dash when she competed in the Surrey indoor championships at Sutton Arena on Saturday.

Martin, 21, won her heat in 7.81 seconds to take two-fifths of a second off her previous best set when finishing runner-up in the same meeting in 2007. She then improved to 7.74 in taking the silver medal in the final.

Her silver medal-winning effort added to her already extensive collection of Surrey medals which goes back many years to 2002 when she took the bronze medal in the girls under 15 long jump.

Last summer she took a bronze medal in the senior women’s 200m and her last gold medal-winning performance was in 2007 when she won the junior women’s long jump title at Kingsmeadow, achieving a hat-trick of medal-winning performances that year as she was also runner-up in the 100m and third in the high jump.

Another Hercules Wimbledon runner in action at Sutton was teenager Eleanor Hahn-Smith who just missed out on a medal in the girls under 15 60m where she was fourth in the final in 8.35 after finishing runner-up in both her heat and semi-final in 8.39 and 8.40. Richard Agyepong just failed to reach the semi-final round of the junior men's 60m after finishing fourth in his heat in 7.40.

Hercules Wimbledon's top race walker Estle Viljoen, who is spending two months in her native South Africa, will contest the South African 20km road walking championship this weekend after winning the Western Province title in 1:55:00.

Meanwhile, Hercules Wimbledon's cross country runners completed their inter-club season on a high note by winning an inter-club match in Richmond Park. Richard Xerri took the individual honours covering the 3.87 miles course in 22:26 with Matthew Sharp third in 22:35, Rory McMahon seventh in 23:04 and teenager Joe Clark eighth in 23:05.

Other Hercules runners: 12 Hugh Saxby (over-55 veteran) 23.25, 13 Andrew Davies 23.58, 16 David Grima 24.44, 25 Augustin Mallon 27.13, 37 Craig Howard 31.38, 39 Agnieszka Mizerek 31:33.

Both Davies and Grima had competed in the Wimbledon Common parkrun over 5km earlier in the day.

Hercules Wimbledon's Tim Livingstone booked his place in Kingston's team to compete in next month's Virgin London mini-marathon from Old Billingsgate to The Mall when he won the Kingston trial 13 and 14-year-olds race in Bushy Park in 13:16. He finished 44 seconds ahead of the second runner in his age group.

Hercules Wimbledon's Tom Bracegirdle finished 12th out of almost 100 runners in the London Schools Year eight boys cross country championships at Avery Hill Park, Eltham, in 11:30.

Peter Lee finished 110th out of almost 11000 runners in the Bath half-marathon in 1:19:28. Lee, 43, was in the top dozen in the veterans over 40 category.

This weekend, three Hercules Wimbledon runners are in action for Surrey in the UK Inter-Counties cross country championships at Birmingham's Cofton Park on Saturday. Liam White competes in the men's under 17 championship, Cassian Hyde in the boys under 13 race, and Alex Robinson in the junior men's event.

Other Hercules Wimbledon runners will be competing in the East Surrey road relays near Box Hill on Saturday.

The young athletes race for U13s starts at 2.30pm with the seniors off at 3pm. Nearer home, some of Hercules Wimbledon's youngsters will be competing in Merton's Virgin London mini-marathon trials being staged in conjunction with the Wimbledon Common parkrun being held on Saturday starting at 9am.

The leading finishers in the eight age categories will get the chance to run for Merton in the mini-marathon proper on Virgin London Marathon day, Sunday April 25.