Assessing a horse race using Racing Post Ratings involves using a rating system provided by the Racing Post, which is a well-known horse racing newspaper and website. Here are the basic steps for assessing a horse race using Racing Post Ratings:

1. Access the Racing Post Ratings: The Racing Post provides ratings for each horse in a race on their website, so you can access these ratings easily.
2. Look at the ratings: The Racing Post Ratings are based on a horse’s past performance and take into account various factors such as the weight carried, the jockey’s record, and the quality of the opposition. Each horse is assigned a rating, which is a numerical value based on their past performance.
3. Analyse the ratings: Once you have the ratings for each horse, you can use them to compare the horses and predict their chances of winning. Look for any trends or patterns in the ratings, such as which horses have consistently high ratings or which horses have improved their ratings in recent races.
4. Consider other factors: In addition to the Racing Post Ratings, you should also consider other factors that may affect the outcome of the race, such as the track conditions, the distance of the race, and the jockey and trainer’s performance.
5. Make predictions: Based on your analysis of the Racing Post Ratings and other factors, make predictions about which horses are most likely to win the race. Remember that no prediction is ever 100% accurate, and there are always surprises in horse racing.