toss of a coin

As to whether Armagh would win at the weekend, he said it was a "toss of a coin".

Let’s say you are betting on the toss of a coin.

It will be decided on the toss of a coin.

The incredible story of how eventual winners Italy won their 1968 European Championship semi-final by the toss of a coin.

The only difference between, say, people over age 60 who got the drug and those who did not is the toss of a coin in the lottery.