The hilly course has caught lots of runners out in the past and provides a tough fitness test for competitors.
On Sunday is the fifth fixture in the Borders Road Running League which will be hosted at Mold by Buckley Runners.
ATHLETICS: Several North Wales athletes step up their training for next month's London Marathon by heading to mid Wales tomorrow for the annual Rhayadr 20-mile race, writes Gareth Hughes.
The hilly course has caught lots of runners out in the past and provides a tough fitness test for competitors.
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