Want to increase the probability of giving birth to a future Olympian? Well a curious statistic has emerged in papers suggesting that future parents should aim to give birth on 23 March.
Searching through the birthdays of the British gold medallists shows that many of them were born on that date.
It is a birthday that is shared by distance runner Mo Farah, cyclists Sir Chris Hoy and Jason Kenny and the rower Sir Steve Redgrave.
Roger Bannister, first man to run a sub-four-minute mile, was also born on 23 March.
However, statistics can be deceptive. One needs to put just 23 people in a room to have a 50-50 chance of a shared birthday.
And yet there are some suggestions that the day or month that you are born can have a big impact on later success.
One idea behind the theory is the relative age effect. Sorting children into school years inevitably means there is nearly a 12-month gap between the oldest and youngest in each year, the BBC reported.
When it comes to sport older children will get physical advantage whether they are sorted from September to August or January to December.
An analysis of young footballers in Europe revealed that more than 43 percent of players were born in the first three months of the 'sporting year' while fewer than 10 percent were born in the last quarter.
"Players born earlier in the selection year will probably experience more success than those born later in the year because of their physical advantage," study by Liverpool John Moores University and KU Leuven, in Belgium, said.
The researchers suggest that these more successful young sportsmen and women are more likely to enjoy their sport, be more motivated to practise and go on to reach the top of the profession.
Another study by Loughborough University insisted that the relative age effect "critically influences" sporting success.
"The relative age effect is as strong as ever in football, and can also be seen in senior cricket and rugby union players," the study said.
"It is also evident in junior and senior track and field athletes," the report said.
But it seems that dates are clearly not everything. The most celebrated Olympian of all time, the US swimmer Michael Phelps, is a child of June.
Team Great Britain's Victoria Pendleton was born in September. (ANI)