My son and I the other day went 16:55 for him (13) and 15:52 for me (41). I'm sure there are dozens better out there, but this got me thinking what are some of the best father son combos you have ever seen. I'm sure there is some 40 year old guy out there that can run 15 flat and has 20 year old kid that can run even faster for a combined time of under 30 minutes.