In essence, the trainer decides when the horse stands a good chance to win. But among others, the
horse training is important. if a horse in a poor form, no horse can win. Although the trainer wants to win a race, the opponents are important. If the opponents in his target race are weaker than his horse in every respect, he stands a better chance to win. But it is not usual at all that the trainer cannot win a race he expects because of different factors out of his control, e.g. the condition of the track, the draw gate, the pace of the race, the performance of the jockey during the race and sometimes the odd and others. In brief, no trainer dares to say that his horse is a sure win unless his horse is a super horse. Our horse racing master, a retired trainer WONG TANG PING only used to put a place bet on his horse he trained when he was a trainer because he
knew there is a lot of uncertainty he could not control.