How To Manage Fatigue During Comrades Training And Race Day
What Experienced Runners Learn The Hard Way
One of the biggest misconceptions about the Comrades Marathon is that it's simply a fitness challenge.
It's not.
By the time runners line up in Durban for the 2026 Up Run, most have already done enough training to finish the distance physically. The bigger challenge is managing what happens once fatigue starts accumulating faster than the body can comfortably handle.
That's usually where Comrades starts unravelling.
Not all at once.
Gradually.
A missed recovery day here.
Poor sleep there.
A long run done slightly too hard.
Not eating enough after training.
Starting race day too aggressively because the legs feel fresh after taper.
None of these things seem dramatic in isolation.
But Comrades has a way of exposing small mistakes slowly over a very long day.
And the runners who generally have the best experience are usually not the runners who trained the hardest. They're the runners who managed fatigue the best over months of preparation.
Most Comrades Fatigue Starts Long Before Race Day
A lot of runners preparing for Comrades become obsessed with mileage.
And to a point, that's understandable. It's a daunting race. The instinct is always to do more.
More kilometres.
More hill sessions.
More long runs.
But somewhere during peak training, many runners stop absorbing training properly and start accumulating fatigue faster than they can recover from it.
That's usually where problems begin.
The body is surprisingly good at hiding fatigue for a while. Most runners don't suddenly feel broken. Instead:
- easy runs stop feeling easy
- sleep quality drops
- resting heart rate creeps upward
- niggles stop disappearing
- motivation starts fluctuating
- long runs take longer to recover from
A lot of runners mistake this for needing more training.
Usually it's the opposite.
The final two months before Comrades are often less about building fitness and more about protecting the fitness you already have.
And honestly, a lot of runners arrive at Comrades more tired than they realise.
The Up Run Punishes Runners Who Start Tired
The 2026 Up Run from Durban to Pietermaritzburg is going to place constant stress on:
- calves
- hips
- lower back
- Achilles tendons
And because the route climbs gradually for most of the day, muscular fatigue becomes cumulative.
You usually start noticing it through places like Fields Hill and later once the long drags after Camperdown begin wearing runners down.
That's why runners carrying unresolved fatigue into race day often struggle badly later in the race.
You usually see it first through the stride.
Cadence slows.
Posture starts collapsing.
Feet stop lifting properly.
Runners begin shuffling instead of running.
At that point, fitness isn't usually the main problem anymore. Fatigue is.
And once fatigue becomes severe enough, nutrition and pacing start falling apart too.
Everything is connected at Comrades.
One Of The Biggest Mistakes: Running Long Runs Too Hard
Almost every experienced Comrades runner eventually learns this lesson.
Your long runs should not become races.
A lot of runners finish big weekends feeling proud because they held goal pace for hours. Then three or four days later the body still hasn't properly recovered.
That accumulated stress adds up over months.
The purpose of most Comrades long runs is:
- time on feet
- muscular durability
- practising nutrition
- learning pacing discipline
Not proving fitness every weekend.
The runners who usually arrive healthiest at Comrades are often the runners who leave something in the tank during training.
Nutrition Problems Usually Start Before The Race Does
A surprising number of Comrades runners underfuel during training.
Especially during heavy mileage weeks.
The body can tolerate that for a while, but eventually the cracks begin showing:
- recovery slows down
- energy becomes inconsistent
- sleep quality worsens
- mood changes
- legs constantly feel flat
Then race day arrives and the body is already carrying cumulative depletion.
During Comrades itself, nutrition mistakes usually show up late in the race:
- dizziness
- nausea
- sudden energy crashes
- inability to run climbs
- cramping
- emotional swings
And the difficult part is that by the time runners realise they're underfuelled, it's often too late to fully correct it.
Experienced runners generally try to avoid this by:
- eating early
- eating consistently
- practising race nutrition during long runs
- avoiding dramatic changes on race day
A lot of runners preparing for Comrades have moved toward simpler carbohydrate-focused fuelling strategies because they tend to be easier on the stomach once fatigue starts affecting digestion late in the race.
Products like Maurten gels and drink mixes have become increasingly popular among endurance runners for exactly that reason — they provide steady carbohydrate intake without feeling excessively heavy or overly sweet during long efforts.
The important thing, though, is not the brand itself. It's consistency. Whatever nutrition strategy you plan to use on race day should already be tested repeatedly during long runs.
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The Up Run Rewards Patience More Than Confidence
One thing Comrades does exceptionally well is punish early enthusiasm.
The opening stages out of Durban feel manageable. The crowds are loud. The legs feel fresh after taper. Almost everyone feels stronger than they should.
That's often where runners quietly make the mistake that catches them hours later.
The Up Run is rarely decided in the first half of the race.
But it's very easy to damage your second half there.
Experienced runners are usually surprisingly conservative early on. They understand that fatigue accumulates exponentially once the climbing and heat begin layering stress onto already tired legs.
By the time runners reach places like Polly Shortts, patience starts mattering a lot more than ambition.
Fatigue Changes How You Run
One of the more frustrating things about Comrades is that fatigue slowly changes your mechanics without you fully noticing.
As runners tire:
- stride length shortens
- cadence slows
- posture collapses
- hips stop stabilising properly
- feet land less cleanly
That's why small problems often become major problems late in the race.
A tiny hotspot becomes a blister.
Slight calf tightness becomes cramping.
Minor discomfort becomes mentally exhausting.
Experienced runners eventually stop trying to feel perfect during Comrades.
Instead, they focus on managing problems before they become catastrophic.
That's a very different mindset.
Recovery Is Training Too
This is probably one of the hardest things for ambitious runners to accept.
Recovery is not separate from training.
Recovery is part of the training.
A lot of runners preparing for Comrades become very disciplined with:
- mileage
- pacing
- sessions
- hill work
…but surprisingly careless with:
- sleep
- hydration
- recovery nutrition
- easy days
- stress management
And eventually the body notices.
Comrades fatigue is also not only running fatigue. Work stress, poor sleep, family pressure and emotional fatigue all influence how well the body absorbs training.
The runners who generally handle Comrades training best are often the runners who recover well consistently, not perfectly.
Simple things matter more than people think:
- eating properly after long runs
- sleeping enough
- rotating shoes
- keeping recovery runs genuinely easy
- taking fatigue seriously before injury forces rest
A lot of runners also underestimate how difficult it becomes to consistently recover properly during peak mileage weeks. This is where hydration and recovery nutrition become useful — not as shortcuts, but simply as practical ways to help the body absorb heavy training loads more consistently.
Products from NamedSport, particularly electrolyte and recovery-focused products, are often useful during high-volume training because they make it easier to stay on top of hydration and recovery when appetite and energy levels are low after long sessions.
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The Emotional Side Of Fatigue
This is something most first-time runners don't expect.
Fatigue at Comrades is not only physical.
Late in the race, small things start feeling emotionally bigger than they should:
- climbs feel endless
- aid stations feel too far apart
- negative thoughts become louder
- tiny discomforts feel overwhelming
Almost every runner goes through difficult patches mentally.
Usually more than one.
The runners who cope best are generally not the runners who avoid fatigue completely. They're the runners who stay calmer once fatigue arrives.
That's an important difference.
Final Thoughts
By the second half of Comrades, everybody is tired.
The runners who usually keep moving well are rarely the runners who avoided fatigue completely. They're the runners who managed it better over months of preparation.
That usually comes from:
- pacing conservatively
- recovering properly
- respecting fatigue early
- fuelling consistently
- making fewer emotional decisions during training
Comrades has a way of rewarding runners who stay patient long after the excitement wears off.
And in many ways, that's what ultra-distance running eventually becomes:
not a battle against fatigue…
but learning how to manage it better than the people around you.