The 100m and 200m will likely be the first two events for the Kids races. If the start stays at 9:30am, I would expect the 100m at 9:30am and 200m at 9:50am based on what they've done in the past. If the Kids race is on the track (which it usually is), then I'd plan for a 20-30 min walk back to the buses/car. Obviously with car you can estimate from there. If bus, you'd roughly be at 10:30 back to the bus lot. The buses run regularly but I'd say I've waited as long as 15 min for one to show up. So I'd say estimate 10:45 for your bus to leave WWOS back to your hotel, and then arrive at hotel, and then get to ADR from there. It's my best guess, but by no means a guarantee.