The rules for letting transgender women compete in the Olympics are to be changed after the Tokyo Games.

Following the Tokyo Olympic Games, the International Olympic Committee is set to release new rules on how transgender athletes are allowed to compete.

It comes as transgender weightlifter, Laurel Hubbard, became the first openly transgender athlete to compete at the Olympic Games yesterday.

Hubbard qualified for the Games after amendments were made to the IOC qualifying guidelines in 2015, allowing trans athletes to compete as long as their levels of testosterone were 10 nanomoles per litre for at least twelve months prior.

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As per LadBible, the IOC's medical and science director, Dr Richard Budgett, accepted that the guidelines put into place in 2015 were no longer backed.

"I absolutely accept that, things move on. At the time the 10 nanomoles per litre was set because we thought that was the lower level for men," he said.

"We know now that they go down to seven and women can be higher as well. Agreeing on another number is almost impossible and possibly irrelevant. You can debate that endlessly."

Budgett said they will be looking at introducing a new framework that will likely allow individual sports to make their own choices as there is no "one size fits all" for sports.

"There is some research, but it depends on whether you are coming from the view of inclusion as the first priority or absolute fairness to the nth degree being the priority," he said.

"If you don't want to take any risks at all that anyone might have an advantage, then you just stop everybody. If you are prepared to extrapolate from the evidence there is, and consider the fact the have been no openly transgender women at the top level until now, I think the threat to women's sport has probably been overstated."

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He also explained how he thought banning trans women at elite level because of the safety dangers might be "the right thing to do in many sports."

"It may be the right thing to do in many sports, because it is at the most elite level in their case that they are concerned about safety. As you come down from that level you can start to prioritise inclusion more than safety. You can understand it. I think there is a legal element to this as well, they have really prioritised safety."

As per the Guardian, when asked about the potential threat to women's sport, Budgett insisted that "you have got to include all women."

"We have spent 100 years promoting women's sport. I think it is up to the whole international sports movement and particularly the international federations to make sure they do protect women's sport," he said.

"The other important thing to remember is that trans women are women. You have got to include all women if you possibly can."