The Tokyo Marathon is a World Athletics Platinum Label marathon and one of six World Marathon Majors. It is also the largest marathon race in all of Asia. Tokyo Marathon is flat with a few short, nearly-unmentionable climbs over a few small bridge crossings. Quick Facts: -Length: 10-16 weeks -Runs per week: 4-7 -Key/Hard Workouts per week: 1-2 -Cross-training days per week: 1-2 -Garmin Structured Workout Compatible -McMillan Calculator paces integrated into all workouts -Geared towards the ...