Negative Split 5K Challenge

Negative Split 5K Challenge

Workout - Negative Split 5K Challenge

  • 10min @ 7'00''/km
  • 1.0km @ 5'30''/km
  • 1.0km @ 5'15''/km
  • 1.0km @ 5'00''/km
  • 1.0km @ 4'45''/km
  • 1.0km @ 4'30''/km
  • 10min @ 7'00''/km
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Intro

Below is a breakdown of The Running Channel’s Negative Split 5K Challenge | Can You Get Faster Every KM? video. The full video includes additional details worth checking out, but here’s how you can start using this workout right away.

Key Points

  • Negative splits—running each km faster than the one before—distinguish accomplished racers from those who go out too fast. This pacing technique works across all distances, from 5Ks to marathons; our Mastering the 10K: Proven Training Plans, Pace Strategies, and How a Smart App Can Elevate Your Performance guide shows how to apply it to longer efforts.
  • The approach is straightforward: start your first kilometre at or slightly under your 5K PB average pace. Each lap after that must be faster. Once you hit km 2, rely on your watch’s auto-lap beeps—skip the constant pace checks and just respond to the signal.
  • Practical tricks include selecting a song that matches your km 1 target time, starting on a downhill stretch to find your rhythm, or having a friend call out your splits aloud.

Workout Example

Running steady with negative splits builds both aerobic capacity and raw speed. If you want a fuller program, pair this with our guide on mastering interval training with science-backed workouts.

  1. Figure out your starting pace. Take your recent 5K personal best and convert it to a per-kilometre target (for instance, 5:50/km for a 29:15 5K). Want a bigger picture approach? Check out these proven interval strategies to cut minutes off your time.
  2. Run 5 km with each lap getting faster:
    • KM 1: target 5:50 / km (or your PB split).
    • KM 2: around 5-10 seconds faster (≈5:40-5:45).
    • KM 3: another 5-10 seconds quicker (≈5:30-5:35).
    • KM 4: continue the trend, ~5:20-5:30.
    • KM 5: your fastest finish, ~5:10-5:20.
  3. Configure your watch to auto-lap and only check it after the first kilometre. Let the lap alert push you to work harder.
  4. Optional cue: play a song that lasts exactly your km 1 target time; when it ends, you know you’ve nailed the pace.

Closing Note

Try the negative-split 5K, tuning the pace drops to your current fitness, and log your times in the Pacing app. Running faster with every kilometre delivers real satisfaction—find out how much speed you can unlock.

References

Inspired by The Running Channel

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