Horses with high career earnings can also be good candidates for a wager, though it is always worth remembering that past performance does not necessarily predict future performance. If a horse has been away from the track for several weeks, it might be weaker than normal and not a strong candidate for a bet. But a horse that runs regularly and has proven to be a good earner might be a solid pick for a box exacta or trifecta, and possibly to win outright, especially if there are other similarly strong horses on the card.