Most triathletes push the swim to the edge of the schedule and pour their hours into bike and run. That's backwards. The swim is your weakest leg, which makes it the cheapest speed you'll ever find, three minutes off a 70.3 on three hours a week, with none of the pounding that wrecks your body. Here's the math.


"I'll swim when I get a chance, but bike and run come first."
"I don't really like swimming, so I just kind of wing it."
"I'll start swimming seriously about a month out from the race."
"I know I should swim more, but between work and the bike and the long runs, there's just no time."
Whenever a triathlete explains why they barely swim, it comes out in the language of excuses, time, preference, hassle. The swim is the leg they push to the edge of the schedule, the one they'll get to eventually, the one they cram in a few weeks before race day and hope for the best.
Here's what's actually happening. You're avoiding the single best investment of training time you have. And I can prove it with a number.
Let me introduce you to a type of athlete. Maybe you'll recognize him. He's a Swim Dodger. He rides nine hours a week and runs another six, chasing minutes he's already most of the way to earning, because he's a strong cyclist and a decent runner. And he swims, oh, when the mood strikes. He's spending the bulk of his training time on the two legs where he's closest to his ceiling, and almost none on the one leg where he's furthest from it.
That's exactly backwards, and here's the math that shows why.
Our athletes average a 12-second-per-100 drop in their swim pace. Let that sink in for a second. Over a 70.3, that's roughly three minutes off your swim, and it comes from three one-hour swims a week.
Now go try to find three minutes on your bike or your run. You already know how hard that is. If you're a competent cyclist, shaving three minutes off a 56-mile bike split takes months of brutal threshold work and maybe a fistful of new watts you may not even have (unless you use the wind tunnel with EZ Gains). Three minutes off your half marathon means grinding your body into the ground. You'll fight for every one of those seconds, because you're already near your ceiling on those legs.
But your swim? You've barely touched it. It's your weakest leg by a mile. Three hours a week, done right, and three minutes falls off almost on its own. It's not a grind, you just finally train the thing you'd been dodging.
Here's the part that should really close the deal.
Every hour you spend running pounds your joints. Every hour grinding the trainer loads your hips and your back in the same fixed position. That damage accumulates, and you know where it leads, because you've been there or watched a training partner get there. The nagging Achilles. The cranky knee. The IT band that flares up eight weeks before your A race and forces you to slash your run volume anyway.
So a huge number of triathletes end up cutting run training whether they like it or not, because their body made the call for them.
The swim asks none of that. It's weightless. Zero impact. You can train it genuinely hard, work speed and different energy systems your bike and run never touch, and climb out with your joints completely intact. It's the one leg that makes you faster without slowly breaking you. For an aging age-grouper, that's not a small perk. That's the whole game. You can do this one for life.
So look at what the Swim Dodger's actually choosing: more work, more injuries, less speed, all to dodge a leg he decided he didn't like.
Next time you hear that hassle bell ringing, the "I don't have time," the "I don't really like it," sit down and do what a Swim Dodger never does. Run the numbers. Three hours a week. Three minutes off your race. No pounding, no flare-ups, and you come out of the water efficient and drafting instead of gassed and alone. There is no better-paying, lower-risk training block in your entire week.
And it's not even that hard to start. Grab a friend, pick three days, and go to the pool. Enjoy training something that isn't the same old bike-and-run grind for once. The gains are sitting right there in the water, and they have been the whole time. Stop dodging them.
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