Where Tempus Fugit is an out-and-back TT on Fuego Flats, Tick Tock is a loop through the desert, over to the main island and back again. They start at about the same spot, so you get a couple of cracks at the Fuego Flats sprint if you want. I did want, and did a nice, steady effort the first time averaging around 250W and finishing in about 49 seconds. At the end I spent whatever I had left, starting at about 490W but fading down to around 280W, setting a 30-day PR of about 42 seconds (and 5th on the live board for the sprint). Overall performance was much the same as the other night. It felt a bit harder and the average heart rate was a bit higher. That's partly due to taking on the sprint early, and partly because I fell in with another similarly-capable rider, and that always gets the competitive juices flowing.