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Objectives To describe the injury profile of a novel format cricket competition (‘The Hundred’) and compare injury incidence and prevalence between the men’s and women’s competitions.Methods Medical staff prospectively collected injury data from the eight men’s and women’s teams during the 2021–2023 competitions. Injury definitions and incidence calculations followed the international consensus statement.Results In the men’s competition, 164 injuries were recorded, compared with 127 in the women’s competition. Tournament injury incidence was 36.6 (95% CI 31.4 to 42.7) and 32.5 (95% CI 27.3 to 38.7)/100 players/tournament in the men’s and women’s competition, respectively. Non-time-loss incidence (men’s 26.6 (95% CI 22.2 to 31.8), women’s 24.6 (95% CI 20.1 to 30.0)/100 players/tournament) was higher than time-loss incidence (men’s 10.0 (95% CI 7.5 to 13.5), women’s 7.9 (95% CI 5.6 to 11.3)/100 players/tournament). Injury prevalence was 2.9% and 3.6% in the men’s and women’s competitions, respectively. Match fielding was the most common activity at injury in both competitions. The thigh and hand were the most common body location time-loss injury in the men’s and women’s competitions, respectively.Conclusion A similar injury profile was observed between the men’s and women’s competition. Preventative strategies targeting thigh injuries in the men’s competition and hand injuries in the women’s competition would be beneficial. Compared with published injury rates, ‘The Hundred’ men’s presents a greater risk of injury than Twenty20 (T20), but similar to one-day cricket, with ‘The Hundred’ women’s presenting a similar injury risk to T20 and one-day cricket. Additional years of data are required to confirm these findings.

Objectives Since much of the previous epidemiological research into lumbar stress fracture was conducted, there has been a marked increase in the amount of cricket being played. The aims were to determine the incidence and prevalence of lumbar stress fracture in English County Cricket fast bowlers between 2010 and 2016, determine the association with match bowling workload and observe seasonal variation in workload and injury.Methods Lumbar stress fracture incidence and prevalence rates were calculated using new international methods for epidemiology in 368 professional English fast bowlers from 2010 to 2016. Workload variables were compared between lumbar stress fracture case and non-injured control groups, before entry in a logistic regression.Results Fifty-seven lumbar stress fractures (mean age 22.81) were reported. Injury was most common in July and September. Match incidence was 0.16 lumbar stress fractures per 10 000 deliveries, annual incidence was 2.46 lumbar stress fractures per 100 fast bowlers and annual prevalence of lumbar stress fractures was 1.67% of squad days. Significant workload variables were observed between cases and controls. A peak 7-day workload of greater than 234 deliveries significantly increased the odds of sustaining a lumbar stress fracture 11-fold compared with bowling fewer than 197 deliveries.Conclusion Lumbar stress fractures are common in young fast bowlers possibly due to immaturity of the lumbar spine. The condensed early and late-season schedule may be causing periods of overuse, resulting in an increase in incidence of lumbar stress fracture. Reduction of workload in young fast bowlers is needed to reduce incidence.