The plan
Everything rebuilt from the ground up with the research behind it. Every change from the previous version is evidence-based and documented.
Coach's honest assessment
Your 1:56:52 half marathon projects to a marathon of 4:03–4:08 on current fitness alone, before 50 weeks of dedicated training. Sub 4:30 is already inside your capability. The real target — which you should reassess after the July 12 half marathon — is sub 4:15, with sub 4:10 genuinely achievable if training goes well. Use sub 4:30 as your floor, not your ceiling.
Phase 1
Base & July HM
Wks 1–9 · May–Jul 2026
Tue/Thu: 5 km easy
Wed: 5 km easy/quality
Long run: 16–22 km
Goal: July 12 HM
Wed: 5 km easy/quality
Long run: 16–22 km
Goal: July 12 HM
Phase 2
Endurance build
Wks 10–23 · Jul–Oct 2026
Tue/Thu: 5 km
Wed: quality session
Long run: 20–30 km
Move: ~wk 23
Wed: quality session
Long run: 20–30 km
Move: ~wk 23
Phase 3
Marathon specific
Wks 24–40 · Oct–Feb 2027
Tue/Thu: 8–10 km
Wed: race pace / tempo
Long run: 24–30 km
Strength: gym-based
Wed: race pace / tempo
Long run: 24–30 km
Strength: gym-based
Phase 4
Taper
Wks 41–50 · Feb–May 2027
Volume: falling
Intensity: maintained
Long run: 10–20 km
Race day: 1 May 2027
Intensity: maintained
Long run: 10–20 km
Race day: 1 May 2027
Phase 1 builds your base coming off the half marathon, respects post-race recovery, and uses the July 12 half marathon as a fitness race and confidence marker. Midweek runs are capped at 5 km due to lunchtime constraints. Long runs build from 16 km to a peak of 22 km before the mini-taper. All strength work is home-based using bodyweight, resistance bands, and a single dumbbell pair.
📅 Week structure
Mon rest · Tue easy + strength A · Wed quality run · Thu easy + strength B · Fri rest · Sat long run · Sun rest. Research-backed hard/easy spacing with full rest before every long run.
📏 Long run cap
Peak long run reduced from 35 km to 28–30 km. Jack Daniels and research consensus: beyond 3 hours of running offers diminishing aerobic return with significantly increased injury risk. At 7:15/km, 30 km = ~3h 38m — slightly over ideal but the right ceiling.
🎯 Target pacing
Sub 4:30 reframed as the floor. Predicted finish based on current HM time is 4:03–4:08. Training target is sub 4:15. Reassess after July 12 — if you run 1:50 or faster, move to sub 4:10.
💪 Strength added
Two evidence-based sessions per week. Session A Tuesday (lower body + plyometrics). Session B Thursday (posterior chain + core). Home-based phase 1–2, gym-based phase 3+. Progressive overload throughout.
❄️ Winter protocol
Phase 3 falls entirely in the Leeds winter. Treadmill at 1% incline is the explicit bad-weather and ice substitution for midweek runs. Long runs prioritised outdoors. Treadmill is genuinely effective for quality sessions.
📈 Taper quality
Intensity explicitly maintained throughout the taper — only volume drops. Race pace efforts continue into week 48. The taper makes you fresh, not untrained. Volume reduction is sharp from week 41.
- 80/20 rule80% of all running at truly easy, conversational pace. Only 20% at tempo or harder. This is the single most important and most commonly violated principle in amateur marathon training.
- Cut-back weeksEvery 4th week drops volume by ~30%. This is when adaptation actually happens. These are not optional recovery weeks — they are training weeks with a different stimulus.
- Run slow to race fastEasy runs at 7:00–7:30/km will feel embarrassingly slow. That is the point. Use heart rate as the guide: 115–135 bpm for easy effort. If you cannot speak in full sentences, you are running too fast.
- Strength is not optionalYour half marathon showed your lungs were fine but your body gave up. That is a muscular endurance problem, directly solvable through the strength sessions in this plan. Two sessions per week throughout.
- Practise fuelling from week 12Take a gel every 35–40 minutes on every long run from week 12. Find the brand your stomach tolerates and never deviate. Nothing new on race day — ever.
- Sleep is the best recovery tool you haveAdaptation happens during sleep, not during the run. 7–9 hours in peak training weeks is a performance intervention, not a lifestyle aspiration.
- Consistency beats any single session50 weeks of imperfect but consistent training beats 30 weeks of perfect training every time. Show up. The plan accommodates real life — a missed session is never a disaster.
- Progressive overload in strengthAdd resistance, slow the tempo, or increase reps every 2 weeks. Your muscles stop adapting when the stimulus stays constant. Track your weights and beat them.
Weekly structure
The same structure every week throughout the plan. What changes is the content of each session, not the days they sit on.
Mon
Rest
Tue
Easy run
+ Strength A
(separate)
(separate)
Wed
Quality run
Tempo or race pace
Thu
Easy run
+ Strength B
(separate)
(separate)
Fri
Rest
Sat
Long run
The cornerstone
Sun
Rest
Why this structure?
Hard/easy alternation is the most consistently supported principle in endurance training research. Wednesday quality sits cleanly between two easy days. Friday rest means you arrive at Saturday's long run genuinely fresh — the most important single recovery decision in the week.
Strength timing on double days
Tuesday and Thursday have both a run and a strength session. These must be separate — ideally a few hours apart. Either run at lunch and lift in the evening, or lift in the morning and run at lunch. Never do heavy lower body strength immediately before a run on the same day.
Running plan
50 weeks of progressive running across all four phases. Every session has a purpose. Click any session for full coaching notes.
Long run cap — why 28–30 km and not 35 km?
Research by Jack Daniels and confirmed by multiple meta-analyses shows that beyond 3 hours of easy running, aerobic benefit plateaus while injury risk and recovery time rise sharply. At 7:15/km easy pace, 30 km takes approximately 3h 38m — already at the outer edge. The fitness you build through consistent weekly volume and quality sessions is more valuable than one extra-long run that takes 5–6 days to recover from.
Strength training
Two sessions per week, each 35–45 minutes. Built from the research up — every exercise chosen for its direct impact on running economy, injury prevention, or late-race muscular endurance.
Why your body gave up before your lungs
Your aerobic system is in good shape — 1:56:52 proves that. What failed in the half marathon was muscular endurance, particularly in the quads (absorbing 3–8× bodyweight per stride), glutes (the primary propulsive muscle), and calves (acting as the shock absorber on every footstrike). A 2024 meta-analysis in Sports Medicine confirmed that heavy resistance training improves running economy significantly more than easy volume alone. These sessions directly address what broke down.
Equipment — phases 1 & 2 (home)
Resistance bands (light/medium/heavy — ~£12 on Amazon) · One pair of dumbbells 8–12 kg (~£25–40) · A sturdy chair or bottom stair · Your sofa (for Nordic curls) · A mat. Total outlay: ~£40–55.
Equipment — phase 3+ (gym)
Post-move, sessions transition to gym-based with barbell Romanian deadlifts, hip thrusts, and split squats with added load. The home session structure is retained as the template — exercises are simply upgraded to heavier gym variants.
⚡ Plyometric warm-up (every session)
Why plyometrics? Research shows plyometric training improves running economy by increasing motor unit recruitment, musculotendinous stiffness, and elastic energy return — essentially making each stride more efficient. Do 5–8 minutes of plyometrics at the START of every strength session before muscles are fatigued.
Session A warm-up: Jump squats — 3×8. Land softly, pause 1 second, explode up. Focus on height not speed.
Session B warm-up: Single leg hops — 3×8 each side. Hop forward landing on one foot, absorb the landing slowly, then hop again. Progresses to bounding in phase 3.
Session A warm-up: Jump squats — 3×8. Land softly, pause 1 second, explode up. Focus on height not speed.
Session B warm-up: Single leg hops — 3×8 each side. Hop forward landing on one foot, absorb the landing slowly, then hop again. Progresses to bounding in phase 3.
📆 Strength through the 50 weeks
Phase 1–2 (home): Bodyweight, bands, and one dumbbell pair. Focus on movement quality and building the habit. Add reps, slow the eccentric (3–4 seconds down), or use a heavier band to progress.
Phase 3 (gym): Transition to gym in ~week 24. Upgrade bodyweight split squats to barbell, add barbell RDLs and hip thrusts as the primary glute builder. Keep plyometric warmup and core work throughout.
Peak training (weeks 30–36): Reduce strength to one session per week. Volume drops but intensity is maintained. Running load is at its highest — protect recovery.
Taper (weeks 41–47): One light session per week. Reduce volume by 50%. Maintain movement patterns.
Final 3 weeks: No structured strength training. Light mobility and glute activation only.
Phase 3 (gym): Transition to gym in ~week 24. Upgrade bodyweight split squats to barbell, add barbell RDLs and hip thrusts as the primary glute builder. Keep plyometric warmup and core work throughout.
Peak training (weeks 30–36): Reduce strength to one session per week. Volume drops but intensity is maintained. Running load is at its highest — protect recovery.
Taper (weeks 41–47): One light session per week. Reduce volume by 50%. Maintain movement patterns.
Final 3 weeks: No structured strength training. Light mobility and glute activation only.
Paces & zones
Every session in the plan runs at one of these paces. The heart rate targets are the most reliable guide — use them if your watch tracks HR.
Easy / long run
7:00–7:30
min/km · all easy runs and long runs
HR: 115–135 bpm (~60–70% max)
Full conversation possible throughout
Zone 2
HR: 115–135 bpm (~60–70% max)
Full conversation possible throughout
Tempo / threshold
6:00–6:20
min/km · Wednesday quality sessions
HR: 155–168 bpm (~80–87% max)
Can speak in short phrases only
Zone 4
HR: 155–168 bpm (~80–87% max)
Can speak in short phrases only
Race pace (sub 4:15)
6:02
min/km · phase 3 quality sessions
HR: 165–175 bpm (~87–91% max)
Controlled but purposeful effort
Race
HR: 165–175 bpm (~87–91% max)
Controlled but purposeful effort
Conservative target (sub 4:30)
6:23
min/km · the floor, not the goal
Current fitness already supports this
Use only if July HM goes poorly
Minimum
Current fitness already supports this
Use only if July HM goes poorly
Strides (taper)
4:45–5:10
min/km · 20–25 sec bursts only
Used in taper to keep legs sharp
Full recovery between each
Sharp
Used in taper to keep legs sharp
Full recovery between each
Max HR estimate
~193
bpm · 220 minus age (27)
Test with a hard 1 km effort to refine
All zones based on this number
Reference
Test with a hard 1 km effort to refine
All zones based on this number
If July 12 finish ≤ 1:52
Target: sub 4:10 · Race pace: 5:55/km
This suggests your fitness is tracking ahead of the Riegel prediction. Phase 3 race pace sessions should shift to 5:50–6:00/km. Update this plan accordingly after the race.
This suggests your fitness is tracking ahead of the Riegel prediction. Phase 3 race pace sessions should shift to 5:50–6:00/km. Update this plan accordingly after the race.
If July 12 finish 1:52–2:00
Target: sub 4:15–4:20 · Race pace: 6:02–6:09/km
Training is on track. Stick to the plan as written and reassess again after a solo time trial in August or September. Sub 4:15 remains very achievable.
Training is on track. Stick to the plan as written and reassess again after a solo time trial in August or September. Sub 4:15 remains very achievable.
Race day
Saturday 1 May 2027. Everything in the 50 weeks has been building to this. Here is how to execute it.
Strategy: negative split
Run the first half in approximately 2:10–2:12 (6:10–6:15/km) — deliberately slower than target race pace. This feels too easy for the first 10 km. That is correct. From km 21 onwards, gradually increase effort to target pace. The runners who blow up in the final 10 km almost always went out too fast in the first 10. The runners who finish strong almost always ran the first half conservatively.
Kilometre splits — sub 4:15 target (6:02/km)
🌅 Race morning
Wake up: 3 hours before start
Breakfast: Oats or toast with banana — exactly what you have practised on long run mornings. Nothing new.
Hydration: 500ml water on waking, sip 200–250ml in the hour before start, stop 20 min before gun.
Arrive: 45–60 min early. Use the time to settle, not to stress.
Warmup: 5–10 min easy walk/jog, dynamic leg swings and hip circles. No static stretching.
Breakfast: Oats or toast with banana — exactly what you have practised on long run mornings. Nothing new.
Hydration: 500ml water on waking, sip 200–250ml in the hour before start, stop 20 min before gun.
Arrive: 45–60 min early. Use the time to settle, not to stress.
Warmup: 5–10 min easy walk/jog, dynamic leg swings and hip circles. No static stretching.
⛽ Fuelling on the run
Gel 1: km 10 (approx 1:00 in)
Gel 2: km 20 (approx 2:00 in)
Gel 3: km 28–30 (approx 2:50–3:00 in)
Gel 4: km 35–37 (approx 3:35–3:45 in)
Water: Every aid station from km 5. Small sips — do not gulp.
Salt: One salt tab at half way and one at km 32 if warm.
Every product used race day must have been practised in training.
Gel 2: km 20 (approx 2:00 in)
Gel 3: km 28–30 (approx 2:50–3:00 in)
Gel 4: km 35–37 (approx 3:35–3:45 in)
Water: Every aid station from km 5. Small sips — do not gulp.
Salt: One salt tab at half way and one at km 32 if warm.
Every product used race day must have been practised in training.
🧠 Mental strategy by section
Km 0–10: Resist the crowd energy. Run your pace. If it feels too easy, it is exactly right.
Km 10–21: Settle into rhythm. This should feel controlled.
Km 21–30: The real race begins. Stay patient — do not surge.
Km 30–35: The wall may arrive. Shorten your thinking to the next km marker only.
Km 35–42: Everything you have trained for is right here. Empty the tank.
Km 10–21: Settle into rhythm. This should feel controlled.
Km 21–30: The real race begins. Stay patient — do not surge.
Km 30–35: The wall may arrive. Shorten your thinking to the next km marker only.
Km 35–42: Everything you have trained for is right here. Empty the tank.
🏁 Race week schedule
Mon 26 Apr: Rest
Tue 27 Apr: 15 min easy + 4–6 strides
Wed 28 Apr: Rest
Thu 29 Apr: 10 min shakeout jog only
Fri 30 Apr: Rest. Lay out all kit. Confirm travel/logistics.
Sat 1 May: 🏅 RACE DAY
Carb load from Wednesday through Friday. Sleep early Thursday night.
Tue 27 Apr: 15 min easy + 4–6 strides
Wed 28 Apr: Rest
Thu 29 Apr: 10 min shakeout jog only
Fri 30 Apr: Rest. Lay out all kit. Confirm travel/logistics.
Sat 1 May: 🏅 RACE DAY
Carb load from Wednesday through Friday. Sleep early Thursday night.
👟 Kit checklist
Shoes: Race shoes with 50–100 km on them (worn from week 20)
Socks: Worn and tested — no cotton
Anti-chafe: Body Glide or Vaseline on thighs, underarms, nipples
Gels: Pre-loaded in pockets or vest — every product tested in training
Watch: GPS set to current pace + distance display
Weather layer: Disposable top if cold at the start
Socks: Worn and tested — no cotton
Anti-chafe: Body Glide or Vaseline on thighs, underarms, nipples
Gels: Pre-loaded in pockets or vest — every product tested in training
Watch: GPS set to current pace + distance display
Weather layer: Disposable top if cold at the start
🔁 Recovery after race day
Immediately: Mylar blanket on. Keep moving gently — do not sit and seize up.
30 min post: Protein and carbs. Chocolate milk is genuinely excellent here.
Days 1–3: Walking only. Significant quad soreness is normal and expected.
Week 2–3: Very easy 10–15 min jogs only if legs allow.
Week 4+: Gradual return. One day off per mile raced is the standard guideline.
30 min post: Protein and carbs. Chocolate milk is genuinely excellent here.
Days 1–3: Walking only. Significant quad soreness is normal and expected.
Week 2–3: Very easy 10–15 min jogs only if legs allow.
Week 4+: Gradual return. One day off per mile raced is the standard guideline.
Progress tracker
Mark weeks complete and log your 5k and half marathon times as the plan progresses. Saves in your browser.
📅 50-week completion
Click any week to mark complete. Data saves locally in your browser.
⏱️ Time log
✅ Weekly check-in
Ask yourself these at the end of every week:
1. Did I complete all planned sessions? If not, was it avoidable?
2. Did I run my easy runs at genuinely easy pace?
3. Did I do both strength sessions?
4. How are my energy levels? (Persistent low energy = under-eating or under-sleeping)
5. Any niggles that need attention before next week?
6. Did I increase weights or difficulty in at least one strength exercise?
Three or more "no" answers in the same week warrants a review of what needs to change, not just moving on.
1. Did I complete all planned sessions? If not, was it avoidable?
2. Did I run my easy runs at genuinely easy pace?
3. Did I do both strength sessions?
4. How are my energy levels? (Persistent low energy = under-eating or under-sleeping)
5. Any niggles that need attention before next week?
6. Did I increase weights or difficulty in at least one strength exercise?
Three or more "no" answers in the same week warrants a review of what needs to change, not just moving on.