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Life & fun · April 12, 2026

Sprint Run: AI Pacemaker

Race against your past self-AI creates a virtual shadow

What it does

Ever wished you could race against yesterday's you? Sprint Run turns your past runs into AI-powered virtual opponents. We call it Shadow Running — pick any previous run, and our AI reconstructs it as a real-time pacemaker that guides you with voice feedback 1. Run once to create your baseline 2. Choose a difficulty — Average You, Recent Best, or Personal Best 3. Start running. Your AI Shadow runs alongside you with real-time audio cues: "You're 3 seconds ahead" or "Shadow is pulling away"

Does the same job

all alternatives →
  • Pace To Race2019 · ▲68

    Giving you r a virtual pacer and trainer in your pocket.

  • MyTrainingPlan2024 · ▲142

    Stay motivated, run faster

  • Vitesse Running: AI tracking2020 · ▲70

    Take running to the next level with custom interval workouts

  • RunGo2016 · ▲130

    Discover the best running routes with voice navigation.

  • Running Assistant2014 · ▲97

    Voice controlled virtual running assistant

  • Ghostrun2025 · ▲124

    Ghostrun unifies your AI workflow across multiple providers

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