When New Zealand runner Sam Ruthe crossed the line to break the under-18 indoor mile world record last week at Boston University, he became the 11th fastest indoor miler of all time.<\/p>\n\n\n\n
By clocking the distance in 3 minutes and 48.88 seconds (3:48.88) he also became the youngest male to break the 3:50 mark in the mile \u2013 aged 16 years and 294 days.<\/p>\n\n\n\n
Not only was this an unbelievable performance for a 16-year-old, it was also his first time on an indoor (banked) track.<\/p>\n\n\n\n
When you also account for the 50-hour travel time from his hometown Tauranga to Boston, and subsequent jetlag, the run becomes even more extraordinary.<\/p>\n\n\n\n
Yet it was another example of an emerging trend in middle-distance running, from 800 to 3000 metres: teenagers looking increasingly comfortable on the world stage.<\/p>\n\n\n\n
Ruthe isn\u2019t alone. Australia\u2019s Cam Myers (aged 19) has continued to build on his performances from last season, recently running a world under-20 indoor mile record in New York, to become the second all-time fastest in that age group.<\/p>\n\n\n\n
Between Ruthe and Myers, performances like this have many athletics fans wondering, how are these young athletes already so good?<\/p>\n\n\n\n
The answer goes beyond early specialisation or simply \u201crunning more\u201d. Research increasingly points toward how middle-distance running performance actually emerges, not just how much mileage is done in training. <\/p>\n\n\n\n