A crash on the first rail by American Avery Krumme. A shame, that.

That looked a sore one, but she's physically alright and makes her way down the rest of the slope.

She looks devastated at the end, though.

One more rider to go and then it's Kirsty Muir.

Anyone feeling nervous for her? Imagine being at the top of that slope!

Ed Leigh
Snowboarding and freestyle skiing commentator on BBC One

What an incredible performance from Megan Oldham and to come back after taking the ski to the hip. She's cemented her position in bronze.

Image source, Getty Images

Megan Oldham plays it safe, but she betters her opening score!

Is 76.46 going to be enough for her to hold onto bronze?

Naomi Urness' score bumps Kirsty Muir down to seventh.

It's close, but not close enough.

A score of 64.73 from Naomi Urness isn't enough to knock her fellow Canadian Megan Oldham out of the bronze-medal spot.

Here comes Oldham. Can she challenge Mathilde Gremaud or Eileen Gu?

Has Naomi Urness just put herself in the bronze medal position on her final run?

That looked big.

Image source, Reuters

Oh dear. This isn't going to help Kirsty Muir's nerves.

The third run isn't going well for anyone. It must be the pressure.

Austria's Lara Wolf slips off one of the opening rails and then follows it up with a superb run. The damage was already done, though.

Tim Warwood
Snowboard and freestyle skiing commentator on BBC One

The bronze medal is there for the taking. Megan Oldham sits there on 69.76 - that is doable for so many of these women.

That's a shame for Mengting Liu.

The Chinese athlete was right on the brink of the bronze medal with her opening score of 67.46, but she pulls out of a jump midway through and drags herself off the ramp. 11.28.

Image source, Getty Images

The third and final run is under way. The pressure is on!

Jenny Jones
Olympic bronze medalist snowboarder on BBC One

Kirsty Muir is absolutely fine on the rails, if you look at the scores on the rails, she's up there, up there with Eileen Gu even. I'd be surprised if she changed anything on the rails. But it's all about that second jump - I wonder if she'll go for it.

So, here's how the podium is looking as things stand...

GOLD - Mathilde Gremaud (SUI) - 86.96

SILVER - Eileen Gu (Chi) - 86.58

BRONZE - Megan Oldham (Can) - 69.76

GB's Kirsty Muir sits in sixth. She's got to bring out the big guns on this final run.

Image source, Getty Images

Mathilde Gremaud moves into the gold-medal position!

Eileen Gu is knocked off her perch.

That's the score to beat going into the final run - a MASSIVE 86.96.

Image source, Reuters

A huge run from Switzerland's Mathilde Gremaud. Is that enough to move her into first place?

"COME ON!" she pleads with the judges.

Not quite as good from Eileen Gu. The Chinese skier shrugs her shoulders after receiving a 23.00 score.

She's still in the lead with 86.58.

Image source, Getty Images

It's 63.01. That leaves Kirsty Muir in sixth with one more run to go.

Tim Warwood
Snowboard and freestyle skiing commentator on BBC One

That second jump - Kirsty Muir went from one postcode to another.

So big, that will hopefully settle her nerves here.

Image source, Getty Images

Ooooh. She was almost gone, but Kirsty Muir manages to hold onto the landing on that second jump.

She'll be marked down for that but at least she'll get a better score on the board. What will it be?

Another clean rail section by Kirsty Muir. Here come the jumps...