Race Day Doubt: The Mental Battle Every Runner Knows

A post in the Runna Reddit thread stopped me in my tracks recently. The honesty. The vulnerability. The way the runner laid it all out there without hiding behind bravado or metrics. I remember commenting that it was one of the best posts I’d read in a long time not because it was polished, but because it was real. Race day doubt is real, and it can stop you from achieving, every runner know that.

It got me thinking about how many of us feel the same way but don’t always say it out loud.

Reddit post

I’ve written before about doubt how it creeps in, how it feeds on the questions we don’t want to ask ourselves before race day. In my Training for Your First 100K series, I called them the ultra devils. They show up uninvited: race morning, or in the restless hours of the night before.

Fear is natural. It’s ancient. It’s wired into us for survival. That instinctive gut feeling keeps us safe. But in running, fear can become self-limiting. It can stop us pushing forward. And if you race long enough, you’ll know exactly what I mean.

You’ve trained for 12, 16, maybe 20 weeks. Early mornings. Late nights. Miles in all weather. Your plan has gone well. Your target feels realistic.

Then the doubt arrives.

Race Day Doubt is real for me

I get it before almost every race or multi-day run:

• What if I can’t hold that pace?

• It feels too fast today.

• Did I carb up properly?

• Is that hip niggle something more?

• Should I be sensible and back off?

• Should I DNS?

  
  

Nerves can kick hard.

But here’s the truth: you are ready. You know you are. The body is prepared. Now the mind needs training too.

Running isn’t just physical. Many races are won or lost before the gun goes off. You might cross the finish line or you might DNS or DNF but either way, your mind has played a powerful role.

Ever since reading about Carol Dweck and her research on the growth mindset, I’ve seen how directly it applies to running.

Growth & Fixed Mindset

A growth mindset gets me out the door when a workout looks intimidating. It reframes a tough tempo run as feedback, not failure. Effort becomes the point. Progress becomes fluid. When I stand on a start line after months of consistency, it reminds me that every interval and long run has built something real even if I can’t yet see the result.

It turns nerves into readiness.

A fixed mindset does the opposite. “I’m not built for this distance.” “I was never that talented.”

It cherry-picks one bad session and ignores twelve good ones. It turns normal pre-race jitters into evidence that you don’t belong. The body is ready, but the story you’re telling yourself says otherwise.

That’s the danger.

In 2025 in Chamonix, on the morning of my second Ultra-Trail du Mont-Blanc, I had to fight that story hard.

Leaving the hotel, my mind questioned everything.

Why not go back?

Your hip’s been niggling.

No one would know.Isn’t that the sensible choice?

My mind is very good at taking nerves and amplifying them.

So I answer it.

I know the training block got me here. I know that walking toward the start line weakens the doubt. I know that once I take the first few steps, the rhythm of running will quiet the noise.

And usually, it does.

But doubt has shown up on many ultras. It probably always will.

So what can we do?

There’s plenty of advice online about race preparation. Here’s what I focus on in the final week—nothing revolutionary, just consistent habits.

The Week Leading In

Sleep – Normal bedtimes. Aim for a solid eight hours.

Hydration – Slightly increase fluid intake.

Rest – You’ve done the work. I usually run twice, very easy and short.

Kit check – Lay everything out. Go piece by piece.

Three Days Out

Prioritise sleep – I go to bed a little earlier to account for a busy mind.

Hydrate consciously – It’s easy to forget when life is busy.

Carbs – I start increasing intake. Bagels with peanut butter are a favourite. Nuts too.

Kit check again – There’s still time to fix anything missing.

24 Hours Before (Especially 100K+)

Off my legs – Minimal walking. Sometimes I take time off work.

Electrolytes – I’ll use a Precision Fuel & Hydration PF1500 tablet. I prefer starting balanced on sodium rather than chasing it later.

Early to bed – Audiobook on. Screens off a few hours before sleep.

Lay kit in order – Exactly how it goes into my race vest.

Race Morning

Move the mind – Music helps. Often late-night trance. Rhythm settles me.

Breakfast – Usually porridge and Greek yoghurt three hours out. If I fancy chocolate, I’ll eat it. A PF90 gel in the lead-up.

Fluids – Water with electrolytes. No coffee. Nothing in the final 30 minutes.

Talk – I chat about anything but the race. Holidays. Work. Life. It keeps the doubt quiet.

Because here’s what I’ve learned: doubt doesn’t mean you’re unprepared. It means you care.

Fear will always knock. The ultra devils will always try the door. The key is not eliminating them—that’s impossible. It’s recognising them for what they are: noise.

You’ve done the work. You’ve built the engine. You’ve earned your place on that start line.

Train the body, yes. But train the mind just as deliberately.

On race day and days prior, when doubt whispers, answer it calmly—and keep walking toward the start.

Let me know in the comments how you prepare yourself for race day.