21k Negative-Split Progression

Workout - 21k Negative-Split Progression

• 10min @ 6'00''/km
• 7.0km @ 5'30''/km
• 7.0km @ 5'15''/km
• 7.0km @ 5'00''/km
• 10min @ 6'30''/km

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Intro

Flora Beverley’s RUNNING TOP TIPS | MARATHON TRAINING | Your questions video has solid content worth your time. We’re pulling out the key takeaways so you can tackle this workout right away—check the full video to catch the complete picture.

Key Points

• Negative‑split strategy: Break your long run into 7 km chunks, getting faster with each one (start around 5:30 min/km and ramp up the pace). It’s a smart way to dial in your pacing.
• Pre‑run routine: Include glute activation, leg swings, hip openers, and dynamic stretches. The longer your run, the more time you should spend warming up.
• Injury prevention: Skip consecutive long runs, don’t shortchange your warm‑up and cool‑down, stay light on your feet, steer clear of heavy heel strikes, and mix in low‑impact work like gym sessions, cycling, or swimming.
• Nutrition & hydration: Bring water and electrolyte salts on the run; gels work for long distances, but test them first in training.
• Progression for beginners: Begin at a conversational pace and add distance slowly; after an injury, work back up with short 1‑3 km runs before hitting the longer stuff.
• Stay motivated: Podcasts, music, or a training partner all help; explore Strava segments and local clubs for fresh routes; mix in speed work and sprints to keep improving.

Workout Example

21.5 km (13.4 mi) negative‑split run

1. Warm‑up (5‑10 min): glute bridges, lateral pulses, clams, leg swings, hip openers.
2. Split 1 – 7 km at ~5:30 min/km (relaxed, focus on form).
3. Split 2 – 7 km slightly faster (aim ~5:15 min/km). Shorten your stride and land mid‑foot.
4. Split 3 – 7 km faster still (aim ~5:00 min/km or faster if you’re feeling good).
5. Cool‑down: easy walk, hip‑mobility drills, light upper‑body stretch.

Tip: Bring water, electrolyte solution, and a gel (only if you’ve tested it first). Use the Pacing app to dial in speeds that match your current fitness.

Closing Note

Try the negative‑split method with paces adjusted to where you’re at right now, and don’t forget to add cross‑training and music or podcasts to stay engaged. The Pacing app lets you customize this workout, so get out there and run well.

References

• RUNNING TOP TIPS | MARATHON TRAINING | Your questions - YouTube (YouTube Video)