At example decimal odds of 2.50, a winning 1 unit stake returns 2.50 units including the stake: profit is 1.50 units. Losing costs the 1 unit stake. The break-even win rate is 40% before fees, because 1 divided by 2.50 is 40%. That is a price threshold, not an estimate of either team’s chance. These examples do not quote a live market or recommend a side; verify the settlement rules before staking.