As part of WIRED’s exclusive look at Breaking2, Nike’s attempt to break the two-hour marathon mark next month in Monza, Italy, our writer is using the same training regime, apparel, and expertise as Nike’s three elite athletes to try to achieve his own personal milestone: a sub-90-minute half-marathon. This is the fourth in a series of monthly updates on his progress. Last week, I travelled for work to Bangui, the capital of the Central African Republic.

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