This event is being run on the R10/9 course.OS References: Landranger sheet 170 - Start and finish at SS989683. Start on B4265 at St Athan West at point 13 yards east of road sign showing ‘low flying aircraft’ for ½ mile, and 70 yards east of road junction with Llantwit Road (Access to M.O.D. Main Gate) Proceed eastwards on B4265 through Gileston cross roads (1.962 miles). Continue down the hillto cross over the River Thaw bridge (2.95 miles) and continue on B4265 climb the hill to “BA Maintenance Depot” roundabout (5.104 miles). Encircle roundabout taking 5th exit to retrace along B4265 to Gileston Cross Roads (8.366 miles) to continue on B4265 to FINISH at point 8 yards beyond ‘50’ road sign, at field entrance on left (10.006 miles) and 591 yards before reaching Start point.