

SARGA.CO—A racehorse's performance isn’t only determined by routine training and jockey strategy, but also by external factors such as air quality and weather conditions. Here is a more detailed explanation.
Many of us still consider routine training to be the main determining factor of a racehorse's performance. However, air quality and weather conditions have also been proven to impact the horse's performance on the track significantly.
A recent study from Colorado State University, published in the Equine Veterinary Journal, found that racehorses in California tended to run slower on days with poor air quality, even at levels well below the threshold considered safe for humans.
According to researcher Sheryl Magzamen, these conditions show that air quality has a significant effect on the performance of athletic animals, including racehorses. In addition, weather factors can also influence the preparation and training patterns of racehorses before competing.
In her research, Magzamen collected data from over 30,000 races at 12 racetracks in California from 2011 to 2020. She also gathered data from air monitoring devices belonging to the U.S. Environmental Protection Agency located near the venues.
By comparing the two datasets, the researchers made a unique finding: varying levels of pollutants, including ozone and PM2.5, can affect racehorse performance.
PM2.5 consists of harmful airborne particles that are smaller than 2.5 micrometers, and various scientific studies have linked them to several health problems, such as heart disease, asthma, and low birth weight.
Indirectly, these findings confirm that air quality has a great impact on a horse's physical condition, and ultimately on its performance on the track.
Citing the New York Gaming Commission, good air quality is indicated by a green Air Quality Index (AQI) (0–50). This index represents the best conditions for a racehorse, allowing training and racing to proceed normally without restrictions.
Racing can still be held at a yellow AQI (51–100) or orange (101–150). However, horses with respiratory problems should have their activity restricted or be monitored more closely.
If the AQI reaches 150 or higher, all activity needs to be restricted, and racing authorities may implement additional protocols, such as requiring a veterinary examination before a race or even canceling races at an AQI of 200 and above.
The weather is a crucial factor for a racehorse. According to the ARIONEO website, in hot weather, horses tend to tire more quickly. This happens because the horse's body has difficulty dissipating excess heat.
If left unchecked, this condition can reduce stamina, increase heart rate, suppress appetite, and trigger excessive sweating in the horse.
Conversely, in cold weather, a horse's muscles tend to tense up and stiffen, reducing flexibility and mobility. As a result, speed and power decrease. At the same time, the risk of injury, such as sprains or muscle strains, increases.
In addition to making the track slippery and making it more difficult for a horse to maintain balance, these conditions also cause the horse to tire more quickly.
This is because a muddy track makes its movements heavier.
High-intensity rainfall also affects the visibility of both the horse and the jockey, which can make it difficult for the jockey to make decisions.
Therefore, trainers need to adjust their race strategies when it rains.
Although it seems insignificant, wind can interfere with a horse's stride, causing it to lose focus and even become stressed. According to the same source, strong gusts of wind can affect a horse's stability on the track.
For example, a headwind tends to slow the horse's speed, while a tailwind can help the horse move faster.
High air pressure can make it harder for a horse to breathe and slow its speed on the track, which indirectly reduces stamina. Conversely, at lower air pressure, horses tend to have more energy, which can improve their performance.
On the other hand, high air humidity is also a challenge because it makes breathing heavier. Humid air also affects endurance and reduces a horse's speed during a race.
In addition, excessive sweating due to unstable air humidity can cause a loss of electrolytes and dehydration if not managed properly.
The explanations above show that air quality and weather have a real impact on racehorse performance. Therefore, these two factors need to be considered when creating training schedules and preparing for a competition.
As cited from EQUUS Magazine, training should be avoided in the hot afternoon. Meanwhile, in cold weather, trainers need to make sure the horse stays warm and its muscles are ready to avoid injury.
In other words, weather and air quality are important factors that cannot be ignored in maintaining a racehorse's performance.
Air and weather conditions are external factors that are difficult to predict and cannot be fully controlled. As also cited from the same source, preventive measures are the most appropriate solution to face these challenges.
For example, in hot weather, horses need to be kept hydrated and have a shady area to rest. In cold weather, using blankets and warming up before a race is highly recommended.
In addition, monitoring the weather forecast is also important so that training and racing strategies can be adjusted. If extreme weather is predicted, the duration and intensity of training should be reduced to maintain the horse's safety and well-being.
It should also be remembered that every racehorse has a different tolerance for certain conditions. Some are more heat-resistant, while others excel on wet tracks. Therefore, it is important for trainers and horse owners to understand how each horse responds to air quality and weather.
With this understanding, more specific strategies can be formulated to maximize performance during a race. Ultimately, external factors such as wind, rainfall, and air pressure have been proven to affect racehorse performance.
Adjusting training patterns, race strategies, and physical care according to weather challenges not only improves performance but also helps minimize the risk of injury. This topic still holds many interesting things to explore in more depth.
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