Lone Star Park at Grand Prairie has made a number of significant changes in its 2004 stall application and first condition book that are notable for horsemen. In essence, the changes will lower the requirements making horses eligible for stalls. They will also increase the maximum acceptable age of maidens stabled at Lone Star Park from four years old to five years old.

According to Lone Star Park’s 2004 stall application and first condition book, the new qualifications read that following horses will not be eligible for stabling at Lone Star Park at Grand Prairie (the "Racetrack"):

• Starters for a claiming price of less than $3,500.00 at anytime must have won for a claiming price of $3,500.00 or more since starting for less than $3,500.00. This figure is down from $5,000.00 in 2003.
• Starters that have never won two races lifetime and have started for a claiming price of $5,000.00 or less. This figure is down from $7,500.00 in 2003.
• Maidens that have started for a claiming price of less than $5,000.00. This figure is down from $10,000.00 in 2003.
• Maidens that are six (6) years old or older. In previous years, maidens stabled on the grounds had to be four (5) years old or younger
  .