I'm not totally sure, but the course proposed originally might have been that used on August 30 1923 by the Coleraine Club for their Coleraine "100" Road Race.

Lap of about 20 miles, covered 5 times.

Start at Mascosquin, towards Limavady. Three miles short of that town turn South-East to Ringsend, then left-handed back to the start.

Only ran once -- 16 Entries, 13 Starters, 7 Finishers.

One interesting point from that race - W C Hunter from Ballymena was entered and rode his bike to the circuit. At least he meant to, but en route hit a pig. Result? Instant pork, wrecked bike, non-start!!