What I Learned Training for My First Triathlon

I came into triathlon from a powerlifting background, which sounds like it should count for something. It didn't, not in the way I expected. Strength carried me through the lifts I already knew how to do. It did almost nothing for the part of triathlon that actually decides your day, which is pacing three efforts back to back and having enough left for the third one.

My first sprint triathlon wasn't a disaster. I finished, I even hit a time I was happy with. But looking back, most of what I learned came from getting the pacing wrong in training long before race day, not from anything that happened on the course itself.

The swim was never the problem I thought it'd be

Going in, I assumed swimming would be the weak link. It's the discipline furthest from anything I'd trained before, and open water especially felt like an unknown. In practice, the swim leg turned out fine, mostly because it's short relative to the other two, and because I'd actually respected it in training rather than treating it as an afterthought squeezed in after leg day.

The real lesson from the swim wasn't technical. It was that the discipline I was most nervous about got the most deliberate practice, and the one I was overconfident about (the bike) got the least. That imbalance is where the actual problems started.

Where the pacing lesson actually hit

I went out on the bike leg like it was a training ride with no run afterward. It felt fine at the time, which was the problem. The effort that feels sustainable in isolation isn't the same effort that's sustainable with a run still to come, and I found that out about two kilometres into the run, not before.

That's the thing nobody quite tells you clearly enough: triathlon pacing isn't three separate pacing decisions, it's one decision made three times with the previous two legs already in your legs. Riding at a pace you could hold all day doesn't mean much if it's not a pace you can also run off.

The bike leg isn't where you win the race. It's where you decide whether you're allowed to run one.

What actually surprised me

The bigger surprise wasn't physical, it was how much patience the whole process demanded compared to lifting. In the gym, effort and result are fairly linked, you push harder, you generally get more out of the session. Triathlon punished that instinct constantly. The weeks that felt like the least, the easy swims, the conversational rides, the recovery runs I was tempted to skip, were doing more for race day than any session where I tried to prove something.

Recovery mattered more here than it ever had with lifting alone. Three disciplines stacked in a week adds up faster than it looks like it should on paper, and the weeks I under-recovered were the weeks every session felt harder than it needed to, not just the hard ones.

What I'd tell myself, starting again

Respect the discipline you're worst at with your training time, not just your worry. Ride your bike leg like there's a run after it, because there is. And treat recovery as part of the plan rather than what's left over once training's done, because with three disciplines instead of one, there's a lot less room for error than lifting alone ever demanded.

Louis Tucker Strength and hybrid performance coach. More about my background →