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  2. 15K run - Wikipedia

    en.wikipedia.org/wiki/15K_run

    The 15K run (15 kilometers, or approximately 9.32 miles) is a long-distance foot race. It is a rarely held race that is not recognized as an Olympic event. The overall world best time for men was set by Jacob Kiplimo en route the Lisbon Half Marathon .

  3. Google Maps - Wikipedia

    en.wikipedia.org/wiki/Google_Maps

    Google Maps is available as a mobile app for the Android and iOS mobile operating systems. The first mobile version of Google Maps (then known as Google Local for Mobile) was launched in beta in November 2005 for mobile platforms supporting J2ME. [191] [192] [193] It was released as Google Maps for Mobile in 2006. [194]

  4. Web Mercator projection - Wikipedia

    en.wikipedia.org/wiki/Web_Mercator_projection

    The standard style for OpenStreetMap, like most Web maps, uses the Web Mercator projection. Web Mercator, Google Web Mercator, Spherical Mercator, WGS 84 Web Mercator [1] or WGS 84/Pseudo-Mercator is a variant of the Mercator map projection and is the de facto standard for Web mapping applications. It rose to prominence when Google Maps adopted ...

  5. Rail speed limits in the United States - Wikipedia

    en.wikipedia.org/wiki/Rail_speed_limits_in_the...

    <10 mph (16 km/h) not allowed: Class 1: 10 mph (16 km/h) 15 mph (24 km/h) Much yard, branch line, short line, and industrial spur trackage falls into this category. Class 2: 25 mph (40 km/h) 30 mph (48 km/h) Branch lines, secondary main lines, many regional railroads, and some tourist operations frequently fall into this class.

  6. Naismith's rule - Wikipedia

    en.wikipedia.org/wiki/Naismith's_rule

    Pace [6] in minutes per kilometre or mile vs. slope angle resulting from Naismith's rule [7] for basal speeds of 5 and 4 km / h. [n 1] The original Naismith's rule from 1892 says that one should allow one hour per three miles on the map and an additional hour per 2000 feet of ascent. [1] [4] It is included in the last sentence of his report ...

  7. Four-minute mile - Wikipedia

    en.wikipedia.org/wiki/Four-minute_mile

    It translates to a speed of 15 miles per hour (24 km/h). [1] It is a standard of professional middle distance runners in several cultures. The first four-minute mile is usually attributed to the English athlete Roger Bannister , who ran it in 1954 at age 25, in 3:59.4. [ 2 ]

  8. One hour run - Wikipedia

    en.wikipedia.org/wiki/One_hour_run

    Since that time, most men's 20,000 m world records were also set en route to one hour world records. The men's world record is 21,330 metres (13.25 mi), set by Mo Farah , while the women's world record is 18,930 metres (11.76 mi), set by Sifan Hassan .

  9. 25K run - Wikipedia

    en.wikipedia.org/wiki/25K_run

    The 25K run (25 kilometers, approximately 15.52 miles) is a long distance running footrace that is between the distance of a half marathon and a marathon.It was formerly an official world record distance in road running by World Athletics, [1] but has since been downgraded to world best status.