Triathlon Training Tips & Race Guides | Peak Within Coaching

Field notes from the training

Race guides, training tips
and honest coaching insights

Written by Nenad Starc — ESCI certified triathlon coach, Ironman finisher, and someone who started from zero in 2022. Everything here comes from experience, not theory.

18 posts

Training & coaching

What a Triathlon Training Camp in Mallorca Actually Does to You

I wasn't the coach this week — I was the athlete. A week at a pro training camp in Mallorca, every kilometre felt in my legs by Thursday.

5 May 2026

Beginner guide

From Zero to Ironman in Three Years — What I Actually Learned

No cycling, swimming, or running background. Three years later: Ironman Copenhagen, 11:58. Here's what I actually learned.

3 May 2026

Race guide

Triathlon Race Calendar Netherlands 2026 — The Complete Guide

Every triathlon event in the Netherlands in 2026 — from sprint to full Ironman — with coaching notes on each one.

25 Apr 2026

Training & coaching

TrainingPeaks for Beginners — How Coached Athletes Use It

New to TrainingPeaks? Here's exactly what to look at, what to ignore, and how to get the most from it as a coached athlete.

18 Apr 2026

Beginner guide

From Couch to Sprint Triathlon in 12 Weeks — Is It Actually Possible?

Yes — but with conditions. Here's what it actually takes, what you need in place, and what can go wrong.

11 Apr 2026

Beginner guide

How Much Does Triathlon Coaching Cost? And Is It Actually Worth It?

An honest answer — what coaching costs, what you get, and how to decide if it's the right move for you right now.

4 Apr 2026

Race guide

Ironman 70.3 Westfriesland — Course Guide, Race Tips & What to Expect

I've raced Westfriesland twice. The swim, the wind on the bike, where races are won and lost on the run.

23 Mar 2026

Beginner guide

Triathlon Coaching in the Netherlands — in English

Looking for an English-speaking triathlon coach in the Netherlands? Here's what to look for and why the language gap matters.

20 Mar 2026

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Beginner guide

Why Triathlon Might Be the New Year's Resolution That Actually Sticks

Most resolutions fade by February. Here's why triathlon is different — and what to know before you commit.

26 Dec 2025

Training & coaching

Supercharging Your Swim Training: Swim Tools

Pull buoy, fins, snorkel, kickboard and smart goggles — which tools actually help and which are just expensive clutter.

7 Dec 2025

Training & coaching

Why Hire a Triathlon Coach? What Coaching Gives You That You Can't Get Alone

Every beginner deserves support from day one. Here's what coaching actually changes — and what it doesn't.

30 Nov 2025

Training & coaching

How a Triathlon Coach Personalises Training for Every Athlete

Beginners, time-crunched athletes, and competitive performers all need different things. Here's how the approach changes.

23 Nov 2025

Training & coaching

How to Build a Triathlon Annual Training Plan (ATP) — With a Real Example

A walk-through of my own ATP — race classifications, training phases, and how the full year fits together.

17 Nov 2025

Training & coaching

Surviving Winter Like a Triathlete: How I Built My Indoor Training Setup

Smart trainer, treadmill, projector, fans. How I set up a pain cave that makes winter training something to look forward to.

9 Nov 2025

Training & coaching

Planning Early for Your Triathlon Racing Season Is the Key to Success

The A-B-C race system and why the planning phase is where most athletes lose their season before it starts.

25 Oct 2025

Race report

Running Through History: My Amsterdam Marathon 2025 Experience

The 50th TCS Amsterdam Marathon — two months after Ironman Copenhagen. Race report, course highlights, and what I learned.

21 Oct 2025

Race report

Ironman Copenhagen 2025 — Race Report

3.8km swim, 180km bike, full marathon. Finish time 11:58:25. From a coach who started from zero in 2022 — the full story of race day.

31 Aug 2025

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