Tauranga teenager Sam Ruthe is rewriting the record books in middle distance running

Sam Ruthe turned 16 years old on 12 April, just two weeks ago. He is already the best under-20 middle distance runner in the world.

The Tauranga-raised teenager has spent the past year dismantling age-group records across every event from the 800m to the 5000m, with a trajectory that has New Zealand athletics buzzing about what might be possible when he reaches his prime. He trains under Craig Kirkwood alongside fellow Kiwi middle-distance talent Sam Tanner, and in January 2026 he produced a performance that resonated far beyond the usual world of junior athletics.

At the Boston University Terriers indoor classic on 31 January, Ruthe ran a mile in 3 minutes 48.88 seconds, becoming the fastest 16-year-old ever to run the distance and setting a world under-18 record. More significantly for New Zealand athletics, he erased John Walker’s national indoor mile record of 3 minutes 49.08 seconds, a mark that had stood since 1982 — 44 years — and belonged to the man who won gold at the 1976 Montreal Olympics. He also went past Nick Willis’s 2016 indoor record of 3 minutes 51.06 seconds in the same run. At 16, Ruthe now holds New Zealand’s best ever indoor mile time.

It was not his first landmark performance, and it will not be his last.

In March 2025, when he was still 15 years old, Ruthe became the youngest person in recorded history to break the four-minute mile, running 3 minutes 58.35 seconds. The four-minute barrier is one of the most famous thresholds in all of sport, a standard that took until 1954 for any human being to break, and one that most elite runners never clear in their careers. Ruthe broke it in his first year of senior competition.

Later in 2025 he became the youngest national champion in New Zealand athletics history, winning the senior 3000m title at 15, breaking a record that had been held by Dave Norris since 1957 — more than a decade before Ruthe’s parents were born. He also won the national 1500m title that same year. At the New Zealand secondary schools championships in December 2025, he set senior boys records in both the 800m, running 1 minute 46.81 seconds, and the 1500m, running 3 minutes 38.62 seconds.

January 2026 brought a remarkable week in the United States. Seven days before his Boston mile, he ran 3 minutes 53.83 seconds at the Cooks Classic in New Zealand, the fastest mile ever recorded by a 16-year-old. His indoor 1500m of 3 minutes 33.25 seconds, set in Boston during the same trip, stands as the world under-18 record for that event.

Back in New Zealand he continued where he left off. In February 2026 he ran the 3000m in 7 minutes 43.16 seconds to set a New Zealand under-20 record, completing a clean sweep of national under-20 records across the entire middle distance range from 800m to 5000m. He also holds the New Zealand under-20 800m record with 1 minute 45.86 seconds, set at the Potts Classic in Hastings in January, and the New Zealand under-20 5000m record with 13 minutes 40.48 seconds, set in December 2025. In March 2026 he won his second straight national senior 1500m title, running 3 minutes 41.43 seconds. He is currently ranked number one in the world for the under-20 men’s 1500m.

Running is not new to the Ruthe family. His parents Ben and Jess were both champion runners in New Zealand. His grandmother, Rosemary Stirling, won gold in the 800m at the 1970 Commonwealth Games in Edinburgh — the same event and distance that now anchors Sam’s record-breaking portfolio. His grandfather Trevor Wright won silver at the 1971 European Marathon Championships. The family lineage in distance running stretches back more than half a century and now has its most exciting chapter yet.

The next major target is the World Athletics Under-20 Championships, to be held in Eugene, Oregon from 5 to 9 August 2026. Ruthe was among the first 12 athletes named in Athletics New Zealand’s initial selection in late March, entered in the 1500m. His world ranking and the times he has been running mean he will arrive in Oregon as one of the pre-eminent favourites in his event.

What happens beyond Eugene is a question New Zealand athletics is beginning to ask out loud. A runner who is 16 and already breaking records that had stood for more than four decades is operating in rare company. Many of those who have run this fast at this age have gone on to compete at the very highest levels of international athletics. Whether Ruthe follows that path is something only time will tell, but the evidence so far is as compelling as any debut in recent New Zealand sporting history.

He is 16 years old and he is already one of the most fascinating figures in New Zealand sport.

Have you been following Sam Ruthe’s career? Are you excited about what he might achieve at the World Under-20 Championships in August? Leave a comment below.