Half marathon only “training” Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window) Colac's Stephen Rippon will contest Sunday's Great Ocean Road Half Marathon in training for a triathlon later this year. Contact the authorby Ben Martin May 11, 2011 A COLAC endurance runner will use the Great Ocean Road Half Marathon as training. Unlock full access to Colac Herald - Subscribe today! Subscribe Now Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)