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    Constanza Testa

    Running Coach · SpainOnline

    Hi, I'm Constanza

    Training with me means having a clear plan, understanding why you’re doing it, and working together towards your goals.

    I’m Cocó, founder of Outside The Box. I combine strength, endurance and sports nutrition to help you become a stronger, more capable athlete—whether you’re preparing for HYROX, a running race, a trail event or a triathlon.

    Expect structured training, honest feedback and adjustments based on your progress, recovery and everyday life. I’ll challenge you while helping you build consistency and confidence.

    You bring the commitment. I bring the structure, support and attention to detail.

    Works with
    Adults (18-59)
    Levels
    All Levels
    Formats
    1-on-1
    Specialises in
    Real Life Athletes With Jobs, Childrens, Etc · Strength Training for Runners · Half-Marathon · Couch-to-5K · Marathon · 10K Training
    Style
    Goal-Oriented · Challenging · Technical · Science-based · Competitive · Structured
    Speaks
    English · Spanish

    Train with me

    Inquire for pricing information

    Where I teach

    Online
    Over video

    My credentials

    Certifications
    Sprint & Olimpic Coach
    USA Triathlon · 2025
    HYROX Performance Coach – Level 2
    HYROX Academy (HYROX365) · 2024
    Level 1 Certificate Course
    CrossFit Level 1/2/3 · 2018
    Trust & Safety
    InsuredCPR Certified

    Elsewhere

    Instagram

    What my clients say

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