About

Mark Trewren running in Hyrox Berlin 2025 race

👋 Mark here...

Over the years, I've dabbled in several endurance races and wandered to some far-flung places from Yemen to Japan to Nicaragua. Always curious, always trying to improve myself.

Worked as a chartered surveyor in London, a teacher in the Middle East and the Netherlands, and I'm now taking a swing at building many small website and app projects. Most will fail, but I'm hoping a few will work!

Inspired by builders of Levels, Friks, and Lou 💻 - working independently without VC funding and avoiding corporate life and any potential micro-management. Ultimately, I swapped the 9-5 world for the 24/7 one instead!

When I'm not coding, I'm training for Hyrox or with the family.

👇 Take a peek at what I've built.

Projects

These are my current projects. I hope you like them.

Smart Discount Code website preview
Live

Smart Discount Code

Save on every Hyrox race, gear drop & training cycle. Verified discount codes shared by Hybrid & Hyrox athletes - fresh every week.

Verified codes Community-driven Fresh weekly
View Project
Protein Cam website preview
Live

Protein Cam

Snap your meal and instantly see your protein grams. Build your protein habit with daily streaks.

Instant protein tracking Daily streaks No sign-up required
View Project
WatSupAI website preview
Live

WatSupAI

Smart AI that helps you understand your supplement stack. Get evidence-based insights on interactions, dosing, and optimization.

Research-backed analysis Stack scoring Actionable insights
View Project
Coming soon

HyMerch

Curated merchandise and gear for Hyrox athletes, featuring community-driven designs and meme-inspired collections that celebrate the Hyrox community.

Coming soon
View Project
Stellar App website preview
Currently being rebuilt

Stellar App

Longevity tracking app helping young adults optimize healthspan through data-driven insights and personalized recommendations (currently being rebuilt)

Longevity tracking Rebuilding
View Project
LockNDial website preview
Waiting list

LockNDial

See your daily progress toward your Hyrox finish goal, knowing when to push or ease off.

Coming soon Join waiting list
View Project
In development

Daily Stack

Stack wins daily: auto post to Insta when you've got your daily workout in and made your GitHub commits.

Earned Sharing Social Proof Habit Reinforcement

Training

Next Race: Hyrox Utrecht 28th, November 2025

Current metrics

VO2 Max

63 ml/kg/min (7th May, 2025)

Resting Heart Rate (RHR)

42 BPM (7th May, 2025)

Zercher Squat

80kg at 76kg BW

Training Schedule

Monday

Strength - 1 (+ wall balls)
Hyrox / 30' easy run if tired

Tuesday

Easy run

Wednesday

Running - 60' (Track)

Thursday

Strength - 2 (+ wall balls)

Friday

Running - 60' easy / threshold

Saturday

Easy longer run

Sunday

Hyrox 90' / Running 80'

Supplements 💊

Morning Stack 🌅

🌿 Turmeric (w/ Ginger & Black Pepper) 1340mg
🥤 Beetroot Extract 3000mg

Post-Workout 🥤

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

Sleep Stack 😴

🍒 Montmorency Cherry 1000mg
🌺 Saffron 28mg
🧠 L-Theanine 200mg
🧂 Magnesium Glycinate 300mg

Latest

GitHub Contributions (Last Year)

Strava Monthly Stats

Distance

Loading...

Time

Loading...

Elevation

Loading...

Activities

Loading...

Recent Strava Activities

Loading activities...

Notes

Last updated:

Experiences