The Reporting of Racehorse Fatalities in New Zealand Thoroughbred Flat Racing in the 2011/12-2021/22 Seasons.
Authors: Gibson Michaela J, Legg Kylie A, Gee Erica K, Rogers Chris W
Journal: Animals : an open access journal from MDPI
Summary
# Editorial Summary Between 2011 and 2022, New Zealand Thoroughbred racing experienced 0.4 fatal injuries per 1000 race starts, with catastrophic musculoskeletal failure accounting for the vast majority of fatalities rather than cardiac events. Gibson and colleagues identified several modifiable and non-modifiable risk factors by analysing a decade of race-level data: horses competing over distances exceeding 1600 metres faced 1.7 times greater risk of fatal fracture compared to shorter-distance runners, whilst male horses and firm track conditions significantly elevated fracture risk, and horses aged five years or older showed 2.1 times higher susceptibility to cardiac-related fatalities. These findings emerge from improved industry reporting protocols that captured previously unavailable detail about circumstances surrounding each fatality, allowing researchers to move beyond aggregate statistics towards evidence-based risk identification. For equine professionals involved in racing—particularly trainers, veterinarians and track managers—these data suggest that race distance and track surface management represent actionable leverage points for welfare improvement, whilst age and sex considerations may warrant closer pre-race screening protocols and informed decision-making around competition suitability.
Read the full abstract on PubMed
Practical Takeaways
- •Track surface management and maintenance are modifiable risk factors—firmer tracks correlate with higher fatal fracture risk, suggesting surface conditioning warrants industry attention
- •Age and sex-based risk stratification may inform pre-race veterinary screening protocols and racing regulations, particularly for older male horses in longer distance events
- •Improved fatality reporting systems enable identification of specific, actionable risk factors; standardized data collection across racing jurisdictions could drive evidence-based welfare improvements
Key Findings
- •Fatal fractures accounted for the majority of race day fatalities at 0.4 per 1000 starts (95% CI 0.4-0.5) in New Zealand Thoroughbred flat racing
- •Horses racing over distances >1600 m were 1.7 times more likely to sustain fatal fractures than those racing ≤1600 m (95% CI 1.2-2.5)
- •Male horses and firmer track conditions were associated with increased risk of fatal fracture
- •Horses aged 5 years and older were 2.1 times more likely to suffer suspected cardiac failure than younger horses (95% CI 1.1-4.6)