I was at a race recently.
Standing near the warm-up area, watching athletes get ready. Or not get ready, as it turned out.
One rider caught my attention. Helmet on, legs spinning, looking good. Then a mate walked past. They chatted. Someone else rolled over. More chatting. A phone came out. Before long, twenty minutes had passed and they’d done about six minutes of actual warm-up.
Then they rolled to the start line. Cold legs. Distracted mind. Gun goes off.
I’m sorry but the warm-up is NOT optional!
What’s actually happening in your body
Let’s start with the basics.
Your body at rest is not your body ready to race. At rest, blood is distributed relatively evenly across your systems. Your heart rate is low. Your muscles are cool. Your nervous system is ticking over quietly in the background.
When you ask your body to go from that state to race pace in the first thirty seconds of an XCO or XCC race, it struggles. Not because you’re unfit. Because you haven’t given it permission to perform yet.
A proper warm-up does several things simultaneously.
It redirects blood flow to your working muscles, where it’s needed most. It raises your core muscle temperature, which improves the speed and efficiency of muscle contractions. It activates your cardiovascular system so your heart and lungs aren’t playing catch-up for the first two laps. And it primes your neuromuscular system — the connection between your brain and your muscles — so that when you ask for power, it arrives. Skip the warm-up and you’re spending the first ten minutes of your race doing it anyway. Except now you’re doing it at race pace, in competition, when it’s already too late.
The two mistakes I see most often
In years of coaching and racing, two patterns come up again and again.
Mistake One: The half-finished warm up
Race day is a social environment. Friends are there. Rivals are there. There’s something to look at everywhere you turn. And so the warm-up gets interrupted.
A chat here. A bike check there. A quick look at what the competition is doing. Before long, the warm-up that was supposed to take thirty minutes has taken forty-five, and half of it wasn’t actually a warm-up at all.
The problem isn’t the socialising. It’s the interruption to a process that needs to be continuous to work. A half-finished warm-up gives you half the benefit. You might feel okay at the start line, but your body hasn’t completed the preparation it needed. And in a race that’s decided, often in the first ninety seconds, okay isn’t good enough.
Mistake Two: Warming up the body but not the mind
This is the one that surprises most athletes when I bring it up.
Think about what the physical warm-up is doing. It’s preparing your body to perform by gradually moving it from a resting state to a ready state. It’s a transition. A deliberate shift from one mode to another.
Your mind needs exactly the same thing.
Before the gun goes, your brain has been dealing with logistics, conversations, travel, nerves, distractions and everything else that comes with race day. Left to its own devices, it will still be processing all of that when the gun goes off.
Arriving at the start line with a physically warm body and a mentally cold mind is like building a powerful engine and forgetting to connect it to the wheels. The physical preparation gets you to the start line. The mental preparation determines what happens when you leave it.
What a real warm-up looks like
A proper pre-race routine addresses both.
It’s structured, so it can’t be half-finished. It’s repeatable, so it becomes familiar. And it builds deliberately toward race readiness — physically and mentally — so that by the time you roll to the start line, you haven’t just warmed your legs up.
You’ve rehearsed your focus. You’ve set your process goal for the race. You’ve deliberately shifted your attention away from the noise of race day and toward what you’re actually there to do. Confidence on a start line doesn’t come from hoping you feel good. It comes from having done a process you trust, consistently, every single time.
Introducing the Power Primer
I call our pre-race warm-up routine the Power Primer.
The name is deliberate. It’s not a spin-out. It’s not a loosener. It’s a primer — a structured process that prepares both the body and the mind to perform from the moment the race starts.
The Power Primer has a defined structure. Each phase has a purpose. The physical progression moves the body gradually toward race intensity, rather than shocking it there. And embedded within the routine is deliberate mental preparation — time to rehearse focus, to settle into a positive and present state of mind, and to set the process goal that will anchor the race.
Critically, it’s protected time. The Power Primer is not the time for long conversations, for watching other athletes, or for anything that pulls attention away from preparation. The socialising happens before it starts or after it finishes. Not during. When athletes follow it consistently, the difference at the start line is immediate. Not because they’ve suddenly become fitter. Because they’ve actually arrived.
The warm-up is part of the race
Here’s the simplest way I can put it.
The race doesn’t start when the gun goes off.
It starts thirty minutes before that, when you begin your warm-up.
The athletes who understand this don’t treat the warm-up as a formality or an afterthought. They treat it as the first act of the race. And they protect it accordingly.
Your body has been doing its job all week in training. The warm-up is simply giving it permission to perform.
Don’t leave that to chance!
I really enjoy writing these articles and if you enjoyed this one, you might like some of the others I have written on my blog.
High Performance Mountain Bike Coach
Donna Dall
Coach, Athlete Developer and Founder of Progressive Coaching Systems.
Supporting mountain bikers to build confidence, durability and long-term performance through structured, athlete-centred coaching. Sharing experience-based insights into training, racing, athlete mindset and long-term athlete development.