I tried, but the mic is too far away from him to be able to discern the direct sound from the slap off of the boards. There may be more than one mic open as well.
You can see the slap shot making it to the camera four times here (there were actually around 8 or 9 reflections. pretty cool.) If I had to guess, the first and last one in this picture kinda show two hits, which would be about 3 or 4 milliseconds, but I can't be sure.