Market support can have varying degrees of significance in a horse race, depending on several factors. Here are a few key points to consider:

1. Betting trends: Market support often reflects the opinions and predictions of bettors who study the form, track conditions, jockey-trainer combinations, and other relevant factors. Generally, the more market support a horse receives, the more people believe it has a good chance of winning. This can indicate that the horse is performing well in terms of recent form, suitability to the race conditions, or other favourable factors.

2. Professional opinions: Market support can also be influenced by the opinions of professional punters, analysts, and tipsters who may have access to additional information or insights. Their assessments can sway the market and impact the odds offered by bookmakers.

3. External factors: However, it’s important to note that market support is not infallible. Sometimes, there may be speculative trends or insider information that influence the market without being accurate predictors of race outcomes. Additionally, unforeseen circumstances such as changing weather conditions, injury, or withdrawal of key competitors can significantly alter the race dynamics.

4. Value betting: Some bettors actively seek out horses with less market support that they believe have a higher chance of winning than indicated by the odds. This strategy, known as value betting, relies on identifying opportunities where the odds offer a higher potential payout than the perceived probability of the horse winning.

Ultimately, while market support can be informative, it should not be the sole basis for making betting decisions. Careful analysis of the form, race conditions, horse’s preparation, and other relevant factors should be taken into consideration to make informed wagers.