Mark Johnston

Documented marathon swims by Mark Johnston.
Date Swim Route Km Age Time/Place
2011 Aug 7 Horsetooth Swim Horsetooth Reservoir - length 10 50 02:46:45 (23/80)
2012 Jul 22 Portland Bridge Swim Sellwood Bridge to St Johns Bridge 17 50-51 04:25:06 (6/20)
2014 Jul 20 Flathead Lake 10K Big Arm State Park buoy course 10 52-53 03:01:34 (1/4)
2015 Jul 18 Flathead Lake 10K Big Arm State Park buoy course 10 53-54 02:57:39 (5/9)
2016 Jul 16 Flathead Lake 10K Big Arm State Park buoy course 10 54-55 02:42:41 (4/7)
2017 Jun 1 Colonia Classic Platja des Trenc buoy course 10 55-56 02:35:03 (30/58)
2017 Jul 15 Flathead Lake 10K Big Arm State Park buoy course 10 55-56 02:33:17 (4/15)
2018 May 31 Colonia Classic Platja des Trenc buoy course 10 56-57 02:24:48 (14/61)