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We grab each other’s arms and race-walk to the lunch area.

Along the looping race-walk course Friday, there was a screen that featured an up-to-date temperature reading.

The cashier abandoned the register at a race-walk, then sprinted through the produce section.

“I’m just Erin who likes to race-walk. Why won’t you let me race 50K?”

Mr. Lyford found another rooting, and then another, and he felt sure he had the trail, so he took off in a kind of race-walk, his arms pumping so that the gun wiggled in the air like he was in color guard.