Today is my first triathlon after ACL reconstruction surgery, it has been 8 months after the surgury, everything is going well, today is the good chance to test my body! It's sprint Triathlon, 750m swim, 21k bike, 5k run at Shatin Park, sort of small local race; Weather was so hot and very little wind, 33-35C and very light south wind, humidy 60%, very smokey weather! As the race split the start time by difference age-group for 20-30mins so the run and the bike was not really in the pack. I was also not expected to ride with the pack instead I'd like to see how I go with individual time trial. Not to swim with the pack was also a good idea to avoid swallow one or two mouth of water as you wouldn't like to! The water outside the Science Park is not so clean as Plover Cove but it's definitely calm like a lake! The water was so warm and muddy anyway.... The 5k run was my criticial part, as planned, picked up the pace after 1.5k and ran all way comfortabley hard for the res...