*2021 could see some small route changes due to new AFCD rule as there was a bike accident in another ultra marathon near Ho Pui and now AFCD will not allow running near / after Ho Pui section.
由於另一場超級馬拉鬆比賽中發生了單車意外，漁農自然護理署不允許在河背一段路作行比賽。所以今年賽事路線會有少許變動。
Four Distances 4個距離
54Km (54.1Km) - elevation gain 2376m & elevation loss 2374m (Max elev 917m) - 12 hour cut-off
25Km (25.1Km) - elevation gain 1226m & elevation loss 1226m (Max elev 917m) - 7 hour cut-off
10Km (10.9Km) - elevation gain 551m & elevation loss 549m (Max elev 608m) - 3.5 hour cut-off
6Km (6.2Km) - elevation gain 302m & elevation loss 300m (Max elev 408m) - 2.5 hour cut-off

54公里 (54.1公里) - 總爬升2376米，總下降2374米 (最高點 917米) – 限時 12小時
25公里 (25.1公里) - 總爬升1226米，總下降1226米 (最高點 917米) – 限時 7小時
10公里 (10.9公里) - 總爬升551米，總下降549米 (最高點 608米) – 限時 3.5小時
6公里 (6.2公里) - 總爬升302米，總下降300米 (最高點 408米) – 限時 2.5小時
https://www.actionasiaevents.com/our-events/upcoming-events/2021-hk50-west/overview.html#content