Most siblings to complete a marathon
Kapral family
16 people
United States (Appleton, WI)
The most siblings to complete a marathon is 16 and was set by the Kapral siblings: Chris, Vince, Steve, Tony, Joe, Doug, Angela, Allison, Theresa, Phil, Michelle, Mary, Nick, Mike, David and Sarah (all USA) who ran the Community First Fox City Marathon, Appleton, Wisconsin, USA, on 20 September 2009. The brothers and sisters, ranging in age from 18 to 44, posted the times from 3:09:51 to 5:31:49 in the 26.2 mile (42.2 km) race.