Warming Up Before a Race
A pre-race warm-up gets your legs, heart rate and joints ready before the starting gun, rather than asking the first kilometer or two of the race itself to do that job. Skipping it doesn't save energy, it just moves the adjustment period into the race, where it costs more.
Why warming up matters more than it seems
Cold muscles and joints are stiffer and less efficient, and a cold start pushes your heart rate up faster than a gradually warmed one would. A short warm-up primes both systems, so your early race pace feels controlled rather than laboured from the first stride. It also gives you a chance to notice anything genuinely off, a tight calf, an odd twinge, while you're still in a position to adjust your plan, rather than discovering it a kilometer into the race itself.
A practical routine
- 5 to 10 minutes of easy jogging, enough to raise your heart rate and break a light sweat.
- A few dynamic movements: leg swings, walking lunges, and high knees, for 20 to 30 seconds each.
- 2 to 4 short strides at close to race pace, with full recovery between each, in the final 10 to 15 minutes before the start.
- A quick mobility check on anything that's felt tight in training, hips, calves, or ankles.
What to skip on race morning
Long static stretching, holding a stretch for 20 to 30 seconds or more, is worth saving for after the race rather than before. Held stretches done cold can temporarily reduce muscle power output, which is the opposite of what you want right before asking your legs to run fast. If you have a specific area that's genuinely tight, a brief, gentle stretch is fine, but it shouldn't be the bulk of your warm-up.
It's also worth skipping anything unfamiliar on race morning: a new mobility drill, a foam roller you've never used before a run, or a stretch routine copied from someone else's race-day video the night before. Race morning isn't the time to test anything new, warm-up included.
Timing your warm-up around race morning
Work backward from your start time, accounting for bag drop, walking to your corral, and any queue at either. Aim to finish your strides close to the start, ideally within 10 to 15 minutes of the gun, so the effect hasn't faded by the time you're actually running. A crowded start with limited space is common; see what to expect on race day for how that morning typically unfolds so you can plan warm-up time around it. If you're travelling in for the race, pair this with a night-before travel checklist so warm-up time doesn't get squeezed out.
Does a marathon need the same warm-up as a 5K?
Not quite. A shorter race like a 5K or 10K benefits from a fuller warm-up, since race pace is close to your ceiling from the very first stride. A half marathon or marathon can go lighter, since the early kilometers naturally double as a build-up, but skipping a warm-up entirely still means starting cold, which is worth avoiding even in a longer race. Reading your effort honestly in those first few kilometers, covered in perceived effort vs pace, helps you tell the difference between normal early-race stiffness and a sign you started too cold.
Warming up in cooler race-morning temperatures
Many Indian races start early to avoid daytime heat, which sometimes means a genuinely cool, even slightly cold, start line. In those conditions a warm-up matters more, not less: muscles take longer to loosen in cooler air, and standing around in a corral afterward can undo some of the benefit. Keep a light throwaway layer on until close to the gun, and consider extending your easy jogging slightly if temperatures are low enough that you notice stiffness lingering after your usual warm-up length.
If you're short on time
A rushed race morning happens to almost everyone at some point. If you're genuinely short on time, prioritise a few minutes of easy movement and one or two strides over skipping the warm-up entirely, and simply treat your first kilometer as an extension of it, running it deliberately easier than goal pace to make up for the shortened routine.
Browse upcoming events and plan your race-morning routine, warm-up included, around a confirmed start time.
Browse eventsWarm-up is one of those things that's easy to skip when race mornings get logistically hectic, bag drop, corral lines, a last bathroom stop, and based on what organizers tell us about typical race-morning timelines, that squeeze is common. My honest read is it's worth protecting even 10 minutes for it deliberately, since it's one of the few parts of race morning that's entirely in your control.
Frequently asked questions
Do I need to warm up before a marathon, not just a 5K?
Yes, though more lightly. A shorter jog and a couple of strides is usually enough since the opening kilometers of a marathon double as a natural build-up.
How close to the start should I finish warming up?
Aim to finish your strides within about 10 to 15 minutes of the start, factoring in time to walk to your corral, so the effect doesn't wear off before the gun goes.
What if there's no space to warm up at a crowded start line?
Improvise with dynamic movements and a short jog wherever there's room, even near your accommodation, and add a couple of strides once you reach the corral if space allows.
Is stretching the same as warming up?
Not quite. Static stretching, holding a stretch, is better saved for after the race; dynamic movement and light jogging are more effective for warming up cold muscles beforehand.