I love running long distances. It’s a unique therapy for peace of mind and builds general endurance. Running for a long time can also help others who want to lose weight.

The single most important rule for beginner long runs: run much slower than you think you need to. Most beginners attempt long runs at the same pace they run shorter distances — then wonder why the final third feels so hard, or why they’re exhausted the next day.

Long runs build aerobic base and musculoskeletal resilience; they achieve this at a genuinely easy, conversational effort, not a moderate-hard one. Start slow, stay slow, walk when needed, and add distance gradually week by week. Everything else — fuelling, hydration, gear — supports this foundation.

Use our Pace Calculator to find your easy long-run pace based on your recent 5K or 10K time. Our training plan hub builds long-run progression into every distance plan automatically.

What “Long Run” Means at Your Level

“Long run” is relative — the appropriate distance depends on your current fitness and goal. As a general guide, a long run should represent 20–30% of your total weekly mileage.

Experience level	Weekly mileage	Long run distance
Complete beginner	15–20 km/week	5–8 km (or 35–50 min walk-run)
Building base (3–6 months)	20–35 km/week	8–14 km
5K/10K training	30–50 km/week	10–18 km
Half marathon training	45–65 km/week	16–22 km
Marathon training	55–90 km/week	22–35 km

The progression principle: increase your long-run distance by no more than 1–2 km per week. Every third or fourth week, reduce the long-run distance by 20–30% for a recovery week before resuming the build.

Tip 1: Run at the Right Pace — Much Slower Than You Think

Long-run pace is typically 60–90 seconds per kilometre slower than your target race pace — and for beginners, often slower still. At the correct pace, you should be able to speak in full sentences comfortably throughout the run.

This feels uncomfortably easy for most beginners. It is correct.

Why easy is essential:

Long runs at easy effort train fat metabolism the body’s ability to use stored fat as fuel, reducing reliance on carbohydrate stores. This adaptation only occurs at lower intensities. Running a long run at moderate-hard effort converts it into a glycogen-dependent effort that doesn’t develop the fat-burning efficiency the run is designed to build.

Easy long runs also allow the musculoskeletal system to accumulate mileage without the fatigue accumulation that leads to overuse injury. The structural tissue (Achilles tendon, tibial bone, plantar fascia) is being progressively loaded — that loading needs to happen at manageable intensity, not high intensity.

Use the talk test throughout your long run. If you can’t speak comfortably, slow down or walk.

Tip 2: Walk-Run for Your First Long Runs

For beginners, there is no requirement to run continuously for the long run. Walk-run intervals — alternating periods of running with planned walking breaks allow you to cover the distance, accumulate the time on your feet, and develop the aerobic base and structural resilience of a full run, with significantly lower injury risk.

A practical walk-run progression for first-time long runs:

Week	Running	Walking	Total
1–2	5 min run	2 min walk	3–4 cycles (35–45 min total)
3–4	8 min run	2 min walk	3–4 cycles
5–6	12 min run	2 min walk	3–4 cycles
7–8	18 min run	1 min walk	3 cycles
9–10	25–30 min continuous easy run	—	—

The walk intervals are not failures. They are a training tool. Elite ultra-marathon runners walk aid stations — walking strategically is a skill, not a weakness.

As fitness builds, you’ll find the transition to longer continuous running happens naturally. For a complete structured progression, see our 5K training plans.

Tip 3: Build Distance Progressively

The 10% rule applies to long-run distance as much as to total weekly mileage: increase by no more than 10% per week, or approximately 1–2 km per session.

A practical beginner, long-run build over 12 weeks (starting from the ability to run 5K continuously):

Week	Long run distance	Notes
1	6 km	Easy, walk-run if needed
2	7 km	—
3	8 km	—
4	6 km	Recovery week — reduce distance
5	9 km	Resume build
6	10 km	—
7	11 km	—
8	8 km	Recovery week
9	12 km	—
10	13–14 km	—
11	15 km	—
12	10 km	Taper week if racing

Never increase the long-run distance two weeks in a row without either a flat week (same distance) or a step back week. The body adapts during recovery, not during the run itself.

Tip 4: Fuel Correctly — Before and During

Before the Long Run

Allow 2–3 hours after a full meal before beginning a long run. For an early morning long run, a light carbohydrate snack (banana, toast with honey, small bowl of oatmeal) 30–60 minutes before is appropriate.

Arrive at the start of your long run well-hydrated but not over-hydrated — normal fluid intake across the day before is sufficient; no need to force additional water in the hour before.

During the Long Run

Under 60–75 minutes: No fuelling needed during the run. Your glycogen stores are sufficient for this duration at easy effort.

60–90 minutes: Optional fuelling — one gel or 25–30g of fast carbohydrate (dates, banana, sports chew) at the 45-minute mark if you notice energy flagging.

Over 90 minutes: Fuelling is important. Target 30–60g of carbohydrate per hour from the 45-minute mark. Common options: energy gels (typically 20–25g carbs each), real food alternatives (banana, dates, rice cakes), or sports drinks at aid stations.

Practice race-day nutrition in training. Your stomach needs to learn to process food while running. Use the same products in training that you plan to use in your goal race — never introduce new nutrition on race day.

For the complete fuelling guide, see our what to eat before a long run post.

Tip 5: Hydrate During the Run

For runs over 45–60 minutes in any conditions, carry water or plan your route around water fountains. For runs over 90 minutes, bring electrolytes alongside water — sodium specifically, which is lost through sweat and must be replaced to maintain plasma volume and prevent hyponatraemia.

Practical hydration targets during long runs:

• Easy conditions (below 15°C): 400–600ml per hour
• Warm conditions (15–25°C): 500–800ml per hour
• Hot conditions (above 25°C): 600–900ml per hour, with electrolytes

Don’t wait to feel thirsty. Thirst lags behind actual fluid need, particularly during sustained moderate effort. Drink small amounts frequently rather than large amounts at intervals.

For a full breakdown of hydration physiology and sweat rate testing, see our running hydration guide.

Tip 6: Recover Properly After Every Long Run

Long runs are a significant training stress and require deliberate recovery:

Immediately after:

• 10–15 minutes of walking (don’t stop abruptly)
• A carbohydrate-protein snack within 30–60 minutes (the peak glycogen resynthesis window)
• Rehydrate with a sodium-containing drink or food alongside water

The following 24–48 hours:

• Expect muscle soreness — it’s normal and temporary
• Active recovery (gentle walk, light cycling, yoga) is preferable to complete rest
• Sleep is the primary recovery mechanism — prioritise a full night

Signs the long run was too hard or too far:

• Significant fatigue persisting more than 48 hours
• Easy running pace noticeably slower than normal for 3+ days
• Persistent muscle soreness beyond 72 hours

For the full recovery framework, see our recovery tips for runners guide.

Tip 7: Choose the Right Time and Conditions

Morning vs evening: Both work well. Morning runs benefit from cooler temperatures and lower traffic; evening runs have the advantage of a fully warmed-up body (core temperature is naturally higher in the late afternoon and evening), which may make the first kilometres feel easier. Choose consistently — habit matters more than timing.

Weather: Check conditions before heading out. For temperature guidelines and pace adjustments, see our best temperatures for running guide. For cold-weather long-run adjustments, see our running in winter guide.

Route: For beginners, out-and-back routes that return to the start are preferable to loops that commit you to completing the full distance if you need to stop early. Know where toilets are for runs over 60–75 minutes.

Tip 8: Gear for Long Runs

Shoes: Your daily training shoe needs to be appropriate for the distance and surface. Replace when midsole compression becomes noticeable, typically every 480–800 km. See our running shoe guide for foot type and shoe selection guidance.

Socks: Technical running socks (merino wool or synthetic) prevent the moisture retention and friction that causes blisters on long runs. Cotton socks are appropriate for short, easy runs; for runs over 60 minutes, technical socks are worth the investment.

Anti-chafe lubricant: Body Glide, Vaseline, or equivalent on inner thighs, underarms, and, for men specifically, the nipple area required for runs over 75–90 minutes. Fabric chafing that is imperceptible in the first 30 minutes becomes painful by kilometre 15.

Hydration carrying method: Handheld flask (simplest), race vest (most comfortable for 90+ minutes), or planning route around water sources (requires familiarity with the route).

For all current gear recommendations by category and budget, see the Gear We Recommend hub.

Easy vs Hard Long Runs: When Each Applies

The long-run types mentioned in most running literature serve different purposes and appear at different training phases:

Easy long runs (always): The foundation. Run at a conversational pace, covering 20–30% of weekly mileage. Build aerobic base, fat metabolism, and structural resilience. Appropriate every week throughout any training cycle.

Progressive long runs (mid-cycle): Easy for the first two-thirds, increasing to steady-state effort for the final third. Develops the ability to run the end of a race at race pace. Introduced at 8–12 weeks out from a goal race.

Race-simulation long runs (race preparation): Include some race-pace segments. Higher injury risk is appropriate only for experienced runners, only every other week in the late build phase, with full recovery before and after. Not appropriate for beginners or those in early base building.

For the complete framework on which long-run type to use and when, see our interval training guide for quality session integration and our training plan hub for fully structured build progressions.