In Tibet, half-marathon poses high-altitude challenges

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Participants of the Lhasa half-marathon wait to run on Sunday. [Photo by Dekyi Drolma/For chinadaily.com.cn]

In Tibet, half-marathon poses high-altitude challenges

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Tsering Tsomo, the women's half-marathon winner, finishes on Sunday. [Photo by Dekyi Drolma/For chinadaily.com.cn]

In Tibet, half-marathon poses high-altitude challenges

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Participants compete in the Lhasa half-marathon on Sunday. [Photo by Dekyi Drolma/For chinadaily.com.cn]

In Tibet, half-marathon poses high-altitude challenges

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Participants compete in the Lhasa half-marathon on Sunday. [Photo by Dekyi Drolma/For chinadaily.com.cn]

In Tibet, half-marathon poses high-altitude challenges

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Officials present awards to the winners of the Lhasa half-marathon on Sunday. [Photo by Dekyi Drolma/For chinadaily.com.cn]