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Tarski's circle-squaring problem is the challenge, posed by Alfred Tarski in 1925, [1] to take a disc in the plane, cut it into finitely many pieces, and reassemble the pieces so as to get a square of equal area. It is possible, using pieces that are Borel sets, but not with pieces cut by Jordan curves.
World Half Marathon Championships: Uster, Switzerland [29] 20 km (road) 1:06:26+ Olivera Jevtić: 27 September 1998 World Half Marathon Championships: Uster, Switzerland [29] Half marathon (road) 1:09:18 Olivera Jevtić: 31 March 2002 Novi Sad, FR Yugoslavia 25 km (road) 1:27:12 Suzana Ćirić: 8 May 1994 BIG 25 Berlin: Berlin, Germany Marathon ...
The Association of Road Racing Statisticians is an independent, non-profit organization that collects, analyzes, and publishes statistics regarding road running races. The primary purpose of the ARRS is to maintain a valid list of world road records for standard race distances and to establish valid criteria for road record-keeping. [1]
Through the 24th mile, only Geremew managed to stay with him. Kipchoge ran the next two miles in 4:26 and 4:30 to win the race 2:02:37, while Geremew finished second in 2:02:55. This was Kipchoge's second fastest time behind his Berlin world record and also the second fastest marathon in history as well as his fourth London Marathon victory. [18]
RAK Half Marathon: Ras Al Khaimah, United Arab Emirates [21] Half marathon: 59:13 Julien Wanders Switzerland 8 February 2019 RAK Half Marathon: Ras Al Khaimah, United Arab Emirates [22] 59:07 a: Mo Farah Great Britain: 8 September 2019 Great North Run: Newcastle upon Tyne-South Shields, United Kingdom [23] One hour: 21330 m Mo Farah Great Britain
Tamirat Tola wasn't thinking about breaking the New York City Marathon course record as he was running by himself in Central Park for the last few miles of the race. The Ethiopian runner broke the ...
Houston Half Marathon: Houston, United States [53] 25 km (road) 1:13:09 Diego Estrada: 11 May 2024 Amway River Bank Run (USA 25 km Open and Masters Championships) Grand Rapids, United States [54] 30 km (road) 1:28:38+ Ryan Hall: ASICS April 13, 2008 London Marathon: London, United Kingdom 1:28:23+ a # April 18, 2011 Boston Marathon: Boston ...
Chicago Marathon: Chicago, United States [61] 30,000 m (track) 2:32:12.0 Ria Buiten: 28 September 1996 Nantes, France 30 km (road) 1:37:23+ Wo: Sifan Hassan: 23 April 2023 London Marathon: London, United Kingdom [62] 1:34:00+ Mx: Sifan Hassan: 8 October 2023 Chicago Marathon: Chicago, United States [63] Marathon: 2:13:44 Mx: Sifan Hassan: 8 ...