Rule 1: Beaten favourite last start.
Rule 2: Last start <=50 days.
Rule 3: Ridden by the top jockey at the track.

The website www.horseracingsystems.net comments: "Having been expected to win on its last outing but failing to do so, a horse is now being partnered by the leading jockey at today's track in an attempt to recover previous losses."

Unfortunately i cannot test your idea. I would suggest that you reduce to 14 days from last run and also would be interested to see the reults if the change was from an apprentice to a senior jockey.