littlewop, you correctly remind me that I overlooked the FAST FORWARD results for Cheyne/Meghan. However, it is no matter, as they would also obviously qualify for the Lufthansa early morning flight 631 Dubai to Frankfurt.
To answer your question more specifically, those times are for all the racers except Lance and Keri (I did identify them as a bit later) and Cheyne/Meghan. That means there are these 6 teams the analysis was intended to cover (although it also fits Cheyne and Meghan maybe one to two hour ahead of the others): Brian/Ericka, Nate/Herb, Gary/Matt, Sam/Dan, Maria/Tiffany, Mika/Canaan.
If teams arrive around 8am into Bremen airport, it is 52 miles to Groningen. Since getting the camera/sound equipment out of luggage and into readiness and getting those marked cars takes at least 30 minutes, team leave Bremen airport sometime after about 830am. That length of drive on the very good flat roads in that area leads to a travel time of maybe 75 minutes. So they arrive before 10am as I stated if my assumptions are correct, not between 10am and 11am as if there were delays.