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Men's Fitness Deputy Editor Zack Zeigler wanted to switch up his fitness routine, so this is the challenge he accepted: run three Spartan Races in three countries in three months. Check out how he did.
Location: Lake Tahoe, California
Challenge: 8.5 miles, 21 obstacles
Date completed: October 1, 2017
Location: Sparta, Greece
Challenge: 16.5 miles, 30+ obstacles
Date completed: November 4, 2017