For all bets placed before 25 March 2025 on markets that will settle on or after 25 March 2025, Betfair will honour the original Market Base Rate (MBR) at the time of bet placement.
The market will settle at the updated MBR, however impacted customers will be credited the difference in commission within 7 business days of respective markets settling. This includes any match markets that are scheduled on or after 25 March 2025. Any bets that are initially unmatched (at time of bet placement) are also included.
Examples
Example 1:
On 30 January 2025, a customer placed a $50 BACK bet on Carlton to be the AFL Premiers 2025 at $11. The MBR was 5%.
No other bets are placed in the AFL Premiers 2025 market.
On 27 September 2025, Carlton win the Grand Final and the market settles at a 6% MBR.
Customer has net winnings of $500 ($50 x $11 – $50)
Customer is charged $30 in commission ($500 winnings x 6% MBR)
At a 5% MBR, the customer would be charged $25 in commission.
Betfair issues a $5 credit to the customer to honour the original 5% MBR.
Example 2:
On 30 January 2025, a customer placed a $50 BACK bet on Carlton to be the AFL Premiers 2025 at $11. The MBR was 5%.
From all other bets placed on 1 March 2025 onwards on the AFL Premiers 2025 market, the customer won $500.
On 27 September 2025, Carlton win the Grand Final and the market settles at a 6% MBR.
Customer has net winnings of $500 ($50 x $11 – $50 from the initial bet from 30 January) + $500 (from subsequent bets on the market) = $1,000
Customer is charged $60 in commission ($1,000 winnings x 6% MBR)
At a 5% MBR on the $500 winnings from the bet on 30 January, the customer would be charged $25 in commission instead of $30.
Betfair issues $5 credit to the customer to honour the original 5% MBR.
Example 3:
On 30 January 2025, a customer placed a $50 BACK bet on Carlton to be the AFL Premiers 2025 at $11. The MBR was 5%.
From all other bets placed on 1 March 2025 onwards on the AFL Premiers 2025 market, the customer lost $200.
On 27 September 2025, Carlton win the Grand Final and the market settles at a 6% MBR.
Customer has net winnings of $500 ($50 x $11 – $50 from the initial bet from 30 January) – $200 (from subsequent bets on the market) = $300
Customer is charged $18 in commission ($300 winnings x 6% MBR)
Since the winning position was generated from a bet placed before 1 March 2025, at a 5% MBR, the customer would be charged $15 in commission.
Betfair issues a $3 credit to the customer to honour the original 5% MBR.
SUMMARY
A summary of the changes are:
