Each event will create a unique experience with four race distances, an expo and finish line festivalOLATHE, Kan., April 8, 2025 /PRNewswire/ -- Garmin (NYSE: GRMN), global leader in fitness tech and pioneer of the world's first running smartwatch, today announced the Garmin Marathon Series. This exciting new road running race flips convention on its head. While many brands sponsor races, this one is wholly owned and produced by Garmin itself, from start to finish. Each event will create a unique experi ...