Historically, prices on pari-mutuel races have been calculated by dividing the GROSS amount of winning bets by the net pool. The net pool is the total amount of wagers reduced by the commission rate, or take-out. This process returns a fair price provided all wagers were made using the same take out. Not all international jurisdictions, however, are allowed by local law to wager into U.S. pools using the local take-out rates, and must use the standard take-out rate for their locality. They have, therefore, been forbidden from wagering into our pools.
To accommodate multiple take-out rates, the Net-Pool pricing model was established in approximately 1995. Under the Net-Pool pricing model, the payouts are calculated by dividing NET amount of winning bets, (rather than the GROSS amount as in Standard Pricing) by the net pool. Each locality then multiplies the payout by the compliment of the commission rate (1-commission rate) to arrive at the local payout.
This process weights each wager according to the local commission rate, as the higher the local commission rate (take-out), the lower the local price. For example, $100 bet at 17-percent commission is worth $83, and $100 bet at 18-percent commission is worth $82. The payout at the locality with a 17-percent commission rate will therefore be slightly higher than the payout at the locality with an 18-percent commission rate.