Sam Ruthe Mile Attempt: Sub-4 Record Breaker at 15

Sam Ruthe from Tauranga ran a sub-4 minute mile at 15, a feat never accomplished by anyone that young anywhere in the world. On March 19, 2025, at Go Media Stadium in Auckland, Ruthe clocked 3:58.35 just 24 days before his 16th birthday.

Youngest sub-4 mile: 15-year-old · NZ mile record: 3:48.88 · World best 16yo mile: 3:53.83 · First sub-4 at 15: 3:58.35 on March 19 · Previous NZ record holder: Sir John Walker (1982)

Six key facts define Ruthe’s rapid ascent through New Zealand middle-distance running.

The table above captures the core metrics of Ruthe’s record-breaking performances through mid-2026.

Did Sam Ruthe break the 4 minute mile?

Yes, and in historic fashion. On March 19, 2025, at Go Media Stadium in Auckland, 15-year-old Sam Ruthe crossed the line in 3:58.35, becoming the youngest athlete ever to run a sub-4 minute mile (Athletics New Zealand). Ruthe was 15 years, 11 months, and 6 days old at the time of the run, with his birthday falling on April 12, 2009 (Athletics New Zealand). The achievement came just 24 days before his 16th birthday (ESPN).

First 15-year-old sub-4

Sam Ruthe became the first 15-year-old to break 4 minutes in the mile globally, surpassing previous benchmarks set by Jakob Ingebrigtsen (3:58.07 at 16) and Cam Myers (3:55.44 at 16) (Athletics New Zealand). This run made Ruthe the fastest-ever mile by a 15-year-old and the youngest person ever to achieve the sub-4 milestone (YouTube race footage).

3:58.35 at Go Media Stadium

The event took place at Go Media Stadium (also known as Mt Smart Stadium) in Auckland, organized by Athletics New Zealand (Athletics New Zealand). Ruthe finished second in the race, with training partner Sam Tanner winning at 3:58.29 and Ben Wall third at 3:59.00 (YouTube race video). Sam Tanner and Ethan Smolej served as pacemakers for the event (YouTube race video).

With this performance, Ruthe became the 49th New Zealander to break 4 minutes in the mile, while Ben Wall became the 50th (Athletics New Zealand). Ruthe also broke the New Zealand U19 and U20 mile records, previously held at 3:58.41 by Sam Tanner (Athletics New Zealand).

The presence of multiple top New Zealand middle-distance runners—eight athletes finished under 4:10—signals strengthening depth in the nation’s middle-distance scene.

How fast did Sam Ruthe run the mile?

Sam Ruthe’s mile times span from his first sub-4 at 3:58.35 to his later NZ indoor record of 3:48.88. His progression demonstrates consistent improvement across age groups and conditions.

NZ record 3:48.88

Continuing his rapid development, 16-year-old Ruthe ran an indoor mile of 3:48.88, breaking the New Zealand mile record and posting a world youth best in the 1500m split of 3:33.25 (YouTube phenom analysis). His 3:48.88 ranks him 11th all-time and became the 2026 world lead for the indoor mile (YouTube record breakdown). This performance appeared to match or exceed Josh Kerr’s all-time position at the same period, based on available race footage (YouTube record analysis).

3:53.83 world best 16yo

Prior to his indoor record, Ruthe ran a 3:53 mile at 16 years old, reportedly establishing a world best for that age group (YouTube record breakdown). Ruthe also posted a 3000m time that appeared to break Cam Myers’ area record, according to video analysis (YouTube phenom analysis) and set a New Zealand age group record in the 3000m with 7:43.16 at 16 years old (YouTube phenom analysis).

His continued time drops suggest Ruthe has found an effective training balance under experienced guidance.

When did Sam Ruthe break the mile record?

Sam Ruthe’s record-breaking timeline began in March 2025 and has continued through 2026 with multiple milestone performances.

2025 sub-4 breakthrough

Prior to his sub-4 attempt, Ruthe’s previous best mile was 4:01.72 achieved at Cooks Classic in Whanganui in January 2025 (ESPN). His breakthrough sub-4 came at Go Media Stadium on March 19, 2025, just two months later. Ruthe turned 16 on April 12, 2025.

Boston event and subsequent progress

By December 2025, the 16-year-old continued his progression, reportedly running 1:34.0 in the 5000m and 1:45 in the 800m, according to video coverage (YouTube phenom analysis). His breakthrough 2026 indoor mile performance established him as a serious international contender.

His rapid development from January to March 2025 shows how quickly teenage athletes can progress with elite pacing support.

Who broke the 4-minute mile for 15 year old?

Sam Ruthe rewrote history when he became the first 15-year-old ever to break the 4-minute mile barrier on March 19, 2025, at Go Media Stadium in Auckland.

Sam Ruthe rewrites history

The Tauranga runner’s achievement was covered extensively by Athletics New Zealand, who officially documented the historic sub-4 attempt involving top New Zealand middle-distance runners (Athletics New Zealand). Ruthe’s performance surpassed previous global youngest benchmarks, with the achievement covered by major international outlets including ESPN (ESPN).

Tauranga runner stuns world

Born April 12, 2009, Ruthe is from Tauranga, New Zealand (Athletics New Zealand). Ruthe’s training partner Sam Tanner is a two-time Olympian who both paced and competed in the historic race (YouTube news clip). Ruthe’s sister, 14 years old, also won a New Zealand U20 event, suggesting a family running background (YouTube news clip).

The family dynamic—with his sister competing at a high level and his training partner being a two-time Olympian—points toward continued progression.

How many miles a week does Sam Ruthe run?

While precise weekly mileage figures are not confirmed from tier 1 sources, Ruthe has been filmed training in the days after his mile record, with his training habits post-record being documented through video coverage.

Training after mile PB

Sam Tanner, Ruthe’s two-time Olympian training partner, has provided pacing for multiple key races (YouTube news clip). A top Olympic running coach stated that Ruthe has breathed new life into New Zealand middle-distance running, suggesting a structured and effective training approach under experienced guidance (YouTube news clip).

Weekly volume insights

Ruthe’s rapid progression from 4:01.72 in January 2025 to 3:58.35 in March 2025 suggests an intensive training block, though exact weekly volume remains unclear from verified sources.

Without confirmed training data, the exact workload remains a gap in the public record.

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