obstacle race
noun
a race in which the contestants are prevented in a specific way from covering the full course at top speed, as by having hurdles to jump, mud pits to cross, or ropes or walls to climb.
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When the height of the ridge concealed him from the other side, he sprang to his feet and began to run, zigzagging in the manner of an obstacle racer to avoid the bushes.
From Eight Keys to Eden by Mark Clifton