24 December 2021 -
28 January 2022
Runners in Hong Kong who complete all 3 distances, each in one go, will receive a personalised HK100 Grand Slam trophy.

參加者如果能夠在香港分別完成3個距離(每個距離一次性完成), 將獲得有自己名字的HK100大滿貫獎盃。