Endurance Track

Training for endurance events, from a first half marathon to an Ironman, explained from the sports science: how to plan a season, build an aerobic base, taper, fuel and recover. For Amateur runners, cyclists and triathletes training around a job who want plans that are backed by evidence.

• Men's marathon world record improved 31.83% over 118 years 2026-10-30

  Over 118 years, the men's marathon world record fell by 31.83%, with the sharpest leap in the 1950s and another surge in the 2020s.

• Does the 1.06 race-time prediction rule hold? Tested on today's world records 2026-10-30

  Riegel’s 1.06 rule slightly over-predicts elite marathon times; today’s world records fit closer to 1.055 for men and 1.045 for women.