Samuel Wanjiru Kamau (Kenya) completed the Chicago Marathon in a time of 2:05.41 on 11 October 2009.

The record for the fastest time to bend 10 nails is 21.13 sec, achieved by Chad Netherland (USA) at The Millennium Hotel and Convention Centre in St Louis, Missouri, USA, on 14 July 2006.

The fastest time to balance a dozen eggs is 1 min 36 sec was achieved by Ashrita Furman (USA) in the Sri Chinmoy Centre, Jamaica, New York, USA, on 22 September 2009. All twelve eggs remained simultaneously upright for more than ten seconds.

The fastest time to break 10 plastic coat hangers is 5.70 seconds and was achieved by Nolan Ritchie (USA), in Akron, Ohio, on 8 September 2013. This record was broken on the Guinness World Record Challengers site (Challengers’ tag: maak): http://challengers.guinnessworldrecords.com/challenges/281-fastest-time-to-break-10-plastic-coat-hangers/attempts/4294

Record time for the Hawaii Ironman is 8 hr 54 min 2 sec by Chrissie Wellington (UK) at Kailua-Kona, Hawaii, USA on 10 October 2009.

The fastest time to complete the 1,688 km (1,049 mile) Iditarod Trail sled dog race across Alaska, USA, is 8 days, 18 hours, 46 minutes and 39 seconds by John Baker (USA) in 2011. With his victory, Baker became the first Alaskan native to win the annual race since 1976.

The fastest time to complete the course at the Ultraman World Championships is 21 hr 41 min 22 sec and was achieved by Holger Spiegel (Germany) in the 1998 Ultraman World Championships, Hawaii, United States, on 28 November 1998. The Ultraman World Championships is an annual event held in Hawaii since 1983. The Ultraman distances are 6.2 mile swim, 261.4 mile bike ride, 52.4 mile run.

The fastest combined time for three marathons in three days is 8 hr 11 min 8 sec by Johan Oosthuizen (SA) during the Lake Tahoe Triple marathon event in Lake Tahoe, Nevada, USA, from 28-30 September 2006 Times were: Marathon #1 – 2:43:35 Marathon #2 – 2:43:31 Marathon #3 – 2:44:02

The fastest time to do 10 donuts in an ATV is 15.59 sec by Travis Pastrana (USA) at Miller Motorsports Park in Tooele, Utah, USA, on 18 November 2008 for the MTV show ‘Nitro Circus’. The GWR episode will air January 2009.

The fastest time to duck tape a person to a wall was 41.66 seconds, achieved by Ashrita Furman who taped Alec Wilkinson (both USA) to a wall at the Sri Chinmoy Centre in New York, USA on 22 December 2011. Alec remained tape to the wall for one minute, in accordance with the guidelines.