Ruby gem for runners: pace, time, and distance calculations, unit conversions (30+ units), race time predictions (Riegel, Cameron, personal Riegel exponent, and Tanda marathon from training volume), GPS track analysis (Haversine, elevation gain, per-km splits, Minetti grade-adjusted pace), heat, humidity, and altitude adjustments, age grading (2025 road tables), VO2max estimation (Daniels & Gilbert) with FRIEND age/sex norms, and personalized training zones (Daniels paces & Karvonen heart-rate zones).

Required Ruby Version

>= 3.3.0

Authors

João Gilberto Saraiva

Versions

  1. 2.0.0

    1. source

      1. 2.0.0 source October 02, 2026 (99.5 KB)
  2. 1.18.1

    1. source

      1. 1.18.1 source September 06, 2026 (66.5 KB)
  3. 1.18.0

    1. source

      1. 1.18.0 source September 06, 2026 (65.5 KB)
  4. 1.17.0

    1. source

      1. 1.17.0 source September 05, 2026 (64.5 KB)
  5. 1.16.0

    1. source

      1. 1.16.0 source September 05, 2026 (54 KB)
Show all versions (42 total)

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