7 Pa. Code § 305.280 – Jockey mount fees.

(a) In the absence of a contract or other agreement between jockey representatives, the Commission shall use the following as a guideline for establishing jockey mount fees.

Purse	Winning mount	Second mount	Third mount	Fourth mount	Other mounts
0 to $2,499	10% of Win Purse	$55	$50	$45	$40
$2,500 to $4,999	10% of Win Purse	$60—$75	$55—$70	$50—$65	$45—$60
$5,000 to $9,999	10% of Win Purse	$65—$85	$60—$80	$55—$75	$50—$65
$10,000 to $24,999	10% of Win Purse	5% of Place Purse	$90—$100	$70—$90	$65—$80
$25,000 to $49,999	10% of Win Purse	5% of Place Purse	5% of Show Purse	$80—$100	$75—$95
$50,000 to $99,999	10% of Win Purse	5% of Place Purse	5% of Show Purse	5% of Fourth Place Purse	$80—$100
$100,000 and up	10% of Win Purse	5% of Place Purse	5% of Show Purse	5% of Fourth Place Purse	$105—$115

(b) A jockey’s fee shall be considered earned when the jockey is weighed out by the clerk of scales. In the event an owner or trainer elects to remove a jockey from the mount after naming a rider at the time of the draw, the Stewards may require a double jockey fee to be paid.
(c) The fee shall not be considered earned when a jockey(s), of their own free will, take themselves off their mounts, where injury to the horse or rider is not involved. Any conditions or considerations not covered by the above rule shall be at the discretion of the Stewards. All jockey protests must be filed prior to the race.