One of the best parts of the whole North Pole experience was the other competitors, meeting and getting to know them – an amazing bunch of people who have done many amazing feats in different parts of the world. Learning about some of the stuff that these guys have done has opened up a whole new world to me. Yet for all their feats, and all amazing sights and experiences of the last week, one thing stood out a mile, and is worth highlighting.. While we were doing the plain old marathon, one guy, alone was doing the first ever wheelchair marathon at the pole – up and down the runway, for 26 miles on his own. William Tan does a lot of road marathons, and he is fast – ranked in the top 20 in the world, he normally does the marathon in about 1:50 minutes. But he had failed the Antartica marathon twice, once he timed out, once it was too muddy. But he succeeded here. And how. These particular frozen 26 miles took him 21 hours. It was staggering. Each push advanced him often as little as 5cms, the specially designed wheels not getting traction on the mixture of crushed snow and ice that was the runway. The isolation, solitude and cold must have been immense. He started 6 hours before we started our race. He finished 9 hours after we did. Never have I seen such determination, such will power. It was truly inspirational. William, we salute you.William completing the North Pole Marathon