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5K Sub-20 Plan: Break 20-minute Barrier in 12 Weeks

USD 21.99
Title
Brand Esen Bay
Esen Bay
Esen Bay Verified independent store

This 12-week program, designed by Olympic runner Ilya Tyapkin, gives you a precise mix of speed, tempo, progression, and long runs. It’s the step-by-step system that helps advanced

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