TRACK AND FIELD PHOTOS

  • FILE - In this March 8, 2015 file photo Netherlands' Dafne Schippers competes in a women's 60m semifinal at the European Athletics Indoor Championships in Prague, Czech Republic. Schippers announced Wednesday, June 3, 2015 she will focus on sprinting instead of the heptathlon as she prepares for the World Championships later this season and next years Olympic Games in Rio. (AP Photo/Martin Meissner, File)

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  • FILE - In this March 8, 2015 file photo Netherlands' Dafne Schippers celebrates her gold medal in the 60m race at the European Athletics Indoor Championships in Prague, Czech Republic. Schippers announced Wednesday, June 3, 2015 she will focus on sprinting instead of the heptathlon as she prepares for the World Championships later this season and next years Olympic Games in Rio. (AP Photo/Petr David Josek, File)

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  • In this photo provided by Competitor Group, Harriette Thompson starts the Suja Rock n Roll Marathon in San Diego on Sunday, May 31, 2015. Thompson, of Charlotte, N.C., is a two-time cancer survivor who dealt with the loss of her husband and a staph infection in her legs while training for this years race. If she completes the race she would become, at age 92 years and 65 days, the oldest woman to ever complete a marathon. Her son Brenny Thompson is behind her in the purple shirt. (Paul Nestor/Competitor Group via AP)

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  • Participants run at the start of an international half marathon in Phnom Penh, Cambodia, Sunday, May 31, 2015. (AP Photo/Heng Sinith)

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  • Runners pass by Royal Palace during an international half marathon in Phnom Penh, Cambodia, Sunday, May 31, 2015. (AP Photo/Heng Sinith)

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  • Ethiopian runner Yekeber Bayabel poses after winning the men's Stockholm Marathon in Stockholm, Sweden, Saturday May 30, 2015. Bayabel won the city marathon enduring rain and high winds. (Marcus Ericsson / TT via AP) SWEDEN OUT

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  • FILE -- In this August 7, 1997 file photo, Italy's Annarita Sidoti crosses the line to win the Women's 10-kilometer walk at the World Track and Field Championships in Athens. Sidoti, a former world and European race walking champion, died Thursday, May 21, 2015. She was 44. (AP Photo/Doug Mills, File)

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  • FILE -- In this August 7, 1997 file photo, Italy's Annarita Sidoti, the gold medal winner, holds the Italian national flag during her lap of honour after winning the Women's 10 kilometers Walk at the World Track and Field Championships in Athens. Sidoti, a former world and European race walking champion, died Thursday, May 21, 2015. She was 44. (AP Photo/Doug Mills, File)

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  • The running shoes worn by Britain's Roger Bannister, the first man to run a sub 4 minute mile, on display during a media viewing at Christie's auction house in London, Wednesday, May 20, 2015. Bannister, who ran a time of 3 mins 59.4 seconds on May 6, 1954, wore theses lightweight shoes in the race. They will be sold at auction on Sept. 10, with an estimated sale price of 30-50,000 pounds sterling (US$ 46,600-77,600). (AP Photo/Alastair Grant)

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  • The running shoes worn by Britain's Roger Bannister, the first man to run a sub 4 minute mile, on display during a media viewing at Christie's auction house in London, Wednesday, May 20, 2015. Bannister, who ran a time of 3 mins 59.4 seconds on May 6, 1954, wore theses lightweight shoes in the race. They will be sold at auction on Sept. 10, with an estimated sale price of 30-50,000 pounds sterling (US$ 46,600-77,600). (AP Photo/Alastair Grant)

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