AI Developer & Athlete

Passionate about training for Hyrox
and building useful AI projects.

Next Race: Hyrox Maastricht 19th September, 2025

About

Mark Trewren competing in Hyrox Berlin 2025 - Hyrox race preparation and training success

👋 Mark here -- dad-in-training, code-curious, always trying to move forward.

Dabbled in several endurance races and wandered to some far-flung places from Yemen to Japan to Nicaragua. Always curious, always trying to move forward.

Worked as a chartered surveyor, teacher and now taking a swing at startup life. Recently, I learned to code with AI, and now I ship Hyrox products I need - maybe you do too.

Inspired by quiet builders and laptop freedom: Levels, Friks, and Lou 💻.

When I'm not coding, I'm training for Hyrox or knee-deep in a LEGO mission with the kids.

👇 Take a peek at what I've built - or say hello here: mark@trewren.com

Hyrox & Fitness Tech Projects

Building the tech tools I need in my everyday life. I hope you find them useful, too.

Live in the App Store

Longevity Tracker

stellarapp.ai

Stellar is a complete AI-powered longevity tracker accessable to everyone

Activity tracking Sleep tracking Nutrition tracking Biometric tracking
Validating - landing page live

Hyrox Readiness Meter

lockndial.com

Lock n Dial syncs your strength and endurance data to show exactly how ready you are for your Hyrox race.

Readiness Data insights Hyrox training Performance
Validated - in development

Badges for Children

BadgesAI.com

Badges AI offers 100 fun, colourful achievement badges for kids aged 6 months to 10 years, plus an AI tool to design your own—originally created for my family to reward and motivate good behaviour.

100+ badges AI designs Age rewards Family motivation
In development

Hyrox game

URL to be confirmed

A fun, multiplayer Hyrox game where you take on the running laps and stations against your friends.

Multiplayer Hyrox stations Fun to play when not training!

Hyrox Training & Fitness

Current metrics 📊

VO2 Max

63 ml/kg/min (4/5)

Resting Heart Rate

40 BPM (4/5)

Trap bar deadlift

130kg x5 @76kg (3/5)

Training Schedule 🏋️‍♂️

Monday

Strength + HIIT

Tuesday

Easy run

Wednesday

Track

Thursday

Rest

Friday

Run with some speed work + strength

Saturday

Hyrox

Sunday

Long run with speed work

Daily Supplements 💊

🌅 Breakfast

  • 1. Beetroot Extract - 3000mg 🍃

🥤 Post-Workout

  • 2. Whey Protein (Grass-Fed) - 30g 🥛
  • 3. Creatine Monohydrate - 5g 💪
  • 4. Himalayan Pink Salt - 1/4 tsp 🧂
  • 5. Coconut Water - 1/2 cup 🥥
  • 6. Honey - 1 tbsp 🍯
  • 7. Lemon Juice - Half a lemon 🍋
  • 8. Kale / Spinach leaves - Handful 🥬
  • 9. Pineapple Chunks - 1/2 cup 🍍
  • 10. Water - 1/2 cup (or more) 💧

😴 Sleep

  • 11. Montmorency Cherry - 1000mg 🍒
  • 12. Saffron - 28mg 🌺
  • 13. L-Theanine - 200mg 🍵
  • 14. Magnesium Glycinate - 300mg 💊

Timeline