Bill Martin wrote:
Also, the total times of 9 to 10 hours doesn't seem right. Am I misinterpreting that number? A typical 9am to 5pm would be 8 hrs.
yes you are. the total time includes a fixed 'arrival' time for morning and afternoon competitors and a 3rd 'total time' that is intended it represent the actual arrival/departure time of event officials that is independent of the actual start time.