Running Statistics: Mortality, Performance, & Injury Data

Runners had 30% lower all-cause and 45% lower cardiovascular mortality than non-runners, about three years of extra life expectancy

55,137 adults aged 18-100, followed for a mean of 15 years (3,413 deaths). Observational: it shows an association, adjusted for other risk factors, not proof that running causes the difference.

Running under 51 minutes or 6 miles a week, or slower than 6 mph, was enough to be associated with lower mortality

Benefits were similar across quintiles of running time, distance, frequency and speed. The authors' summary: even 5-10 minutes a day at slow speeds went with markedly lower risk.

Persistent runners had 29% lower all-cause and 50% lower cardiovascular mortality than never-runners

From the analysis of how running habits changed over time; people who kept running had the largest benefit.

Jogging 1 to 2.4 hours a week was associated with the lowest mortality: hazard ratio 0.29 versus sedentary non-joggers

Copenhagen City Heart Study: 1,098 healthy joggers and 3,950 healthy non-joggers followed since 2001. The lowest-risk frequency was 2-3 times a week, at a slow or average pace.

Light joggers had the lowest mortality (hazard ratio 0.22); strenuous joggers did not differ significantly from sedentary non-joggers (1.97, 95% CI 0.48-8.14)

The very wide interval for strenuous joggers reflects how few of them there were, so the U-shaped curve the authors describe is uncertain at the high end.

Across studies, the incidence of lower-extremity running injuries in long-distance runners ranged from 19.4% to 79.3%

Systematic review. The knee was the most common site. There was strong evidence that long weekly distance in men and a history of previous injury were risk factors.

Novice runners sustain 17.8 injuries per 1,000 hours of running; recreational runners 7.7

Meta-analysis of 13 prospective studies. Individual studies ranged from 2.5 injuries per 1,000 hours in long-distance track athletes to 33.0 in novices; injury definitions varied.

Time-loss injury proportions ranged from 3.2% in cross-country runners to 84.9% in novice runners

Systematic review of 86 studies. Proportions depended on injury definition and follow-up length; during an event, 65.6% of ultra-marathon runners had a medical-attention injury.

Novice runners who increased weekly distance by more than 30% had more distance-related injuries than those adding under 10%: hazard ratio 1.59 (95% CI 0.96-2.66)

874 GPS-tracked novice runners over one year; 202 were injured. Overall injury rates did not differ across the under-10%, 10-30% and over-30% groups, and this result was borderline (P = .07). The authors suggest staying under 30% a week.

Patellofemoral pain syndrome was the most common of 2,002 running injuries, followed by iliotibial band friction syndrome, plantar fasciitis, meniscal injuries and tibial stress syndrome

Runners seen at the Allan McGavin Sports Medicine Centre over two years; 54% were women. Being under 34 was a risk factor for patellofemoral pain in both sexes.

Strength training improved running economy in highly trained runners with a large effect: standardized mean difference -1.42 (95% CI -2.23 to -0.60)

Meta-analysis of five controlled trials with 93 middle- and long-distance runners (VO2max above 60 ml/kg/min). Programs ran 2-3 times a week for 8-12 weeks, mostly at 40-70% of 1RM, with jumps and short sprints.

Across 26 controlled studies in trained endurance athletes, strength training improved time-trial performance, economy and muscle power

Systematic review; athletes had at least six months of endurance training and interventions lasted five weeks or more. The authors call for longer interventions with valid strength assessments.

Raising step rate 5% above preferred reduced the energy absorbed at the knee; a 10% increase also reduced it at the hip

45 healthy recreational runners on a treadmill at constant speed. Lowering step rate by 10% increased loading at every joint. A mechanics study: it measured joint loading, not injuries.

VO2max declines about 10% per decade in men and women, regardless of activity level

Review. Long-term high-intensity training may cut the loss by up to 50% in young and middle-aged men, but not older men; middle-aged and older women did not appear to slow it below 10% per decade.

A 12-minute run of 2,800-3,000 m corresponds to an estimated VO2max of about 51-56 ml/kg/min

From Cooper's field-test equation, VO2max ≈ (distance in metres − 504.9) / 44.73. An estimate; a laboratory test is more accurate.

Nine weeks of polarized training raised VO2peak by 11.7% in well-trained endurance athletes, the largest gain of four training models

48 runners, cyclists, triathletes and cross-country skiers were randomized to polarized, threshold, high-intensity interval or high-volume training. Threshold and high-volume training produced no further gains.

Competitive endurance athletes training 10-13 times a week do about 80% of sessions at low intensity and about 20% dominated by high-intensity work

Synthesis of descriptive studies of national and international athletes. Intensification studies gave no convincing evidence that more interval training brings long-term gains in well-trained athletes.

The men's marathon world record is 1:59:30 (Sabastian Sawe, London, April 2026), the first sub-2-hour time in a record-eligible race

About 2:50 per km (4:34 per mile). It took the record from Kelvin Kiptum's 2:00:35, set in Chicago in October 2023.

The women's marathon world record is 2:09:56 (Ruth Chepngetich, Chicago, October 2024), set in a mixed race

The first women's marathon under 2:10. The women-only record is 2:15:41 (Tigst Assefa, London, April 2026). Chepngetich was later banned after a March 2025 test; results before that sample stand.

The average US marathon finish time in 2024 was 4:24 for men and 4:51 for women (4:28 and 4:54 in 2019)

From about 10.5 million US race results across 6,352 events, roughly 97% of US marathon results. Average times got slightly faster between 2019 and 2024.