Racing in the Vitality 10k in London the Bristol & West AC runner finished 14th in a strong domestic field in a time of 29mins 32secs – just three seconds behind Olympic triathlete Jonathan Brownlee.
The time shaved seven seconds off the mark Le Grice set in the Chichester 10k earlier this year and consolidates his place as second in the South West Rankings and 23rd nationally.
Le Grice was also the first West Country runner in the field finishing ahead of former clubmate Tom Merson (19th 29:56) and current B&W runners Owain Jones (45th 30:53) and Jack Bancroft (50th 31:02).
Mike Wilsmore (72nd 31:42), Kurt Taylor (78th 31:51) and Adam Stokes (97th 32:17) also completed the event.
There were personal bests galore from the Bristol & West women who made the trip to the capital.
Natalie Griffiths, Rosie Hattersley and Katrina Entwistle had ambitions to get below their target times of 36 minutes, 38 minutes and 39 minutes respectively – and that is what they did.
Griffiths ran sub-36 minutes for the first time with 35:57 for 34th, which took a massive chunk – 45 seconds to be precise – off the PB she set back in the Cardiff 10k in March.
The time lifts Griffiths to 14th in the Scottish rankings and eighth in the South West.
Hattersley finished 60th in 37:43 to beat her PB of 38:01 set at the Bristol 10k earlier this month while Entwistle shaved eight seconds off her PB set in Bristol with 38:56 for 91dt.
“All three believe there is more to come and will be looking to race 10k again soon,” said coach Keith Brackstone.