The world number one takes the applause, waves to the crowd, then heads off to the scorer's hut. Her 65 is the joint-lowest round of the week.

Barring a small miracle, Inbee Park will be the champion. No birdie on 18, just lipping out, but a final round 65 looks set to seal a career Grand Slam.

Right then, Inbee Park. Can you seal the Women's British Open?

After all that, Ko Jin-young had the best part of 15 feet for bogey. Curving away to the right, she eventually takes a double bogey six. She is three shots behind Inbee Park and will almost certainly have to settle for second.

That'll do. Maybe 20 feet, right of the hole. Get that done in two and Inbee Park is almost guaranteed to be the Women's British Open champion.

Ko is looking for some flat ground for a drop. For the first time her smile has gone. She might just want it done now. On 18, Park has the perfect position for her final approach.

...she doesn't like it. The club is dropped, the ball rolls off the edge of the green and into the stream. The splash could well end her title charge. Head drops to the ground, face etched with despondency. Tell the engraver it'll be Inbee Park. Ko doesn't even bother to put her pink coat on.

It stays out, but the par is tidied up. She heads off down the last with a one-shot cushion. Back on the 16th, Ko Jin-young is pondering her approach...

I wonder if Inbee Park holes this birdie chance on 17, would that be the ball game? Ko would be two back with only three to play.

Nice from Inbee Park, lobbing on to the 17th green, chance of birdie, more likely to be par unless she pulls out something very good. Ko Jin-young has found the fairway on the 16th. Business end.

The long birdie putt on 15 slides by for Ko Jin-young. Tidied up, jacket back on. Three to play. Can she find the shot to catch Inbee Park, or is she relying on an error from her compatriot?

A slight error from Park, tugging her second at the par-five 17th. Rough, but a decent lie.

Park has won five of the last 13 majors. That's just silly. Ko Jin-young is back in her pink parker jacket. I have to say I'm a fan of it. There's not enough fake fur in top level sport.

The sturdy figure of Inbee Park, white trousers and blue gillet, is already on the 17th tee. Safely on to the fairway. Ko Jin-young, back on the 15th, finds the green of the par-three. It's a long way for birdie, though.

Is that the moment? The world number leads on her own for the first time in this championship. Four-footer on 16, rolling in on the left of the hole. She is one up with two to play, while Ko Jin-young is just starting to go backwards. The career Grand Slam beckons?

Image source, AP

Andrew Cotter
BBC Sport commentator

"It really is a shoot-out between Inbee Park and Ko Jin-young now."

There's still drops of rain in the air, the busy sea still lapping at the shore. Fans, rugged up, follow the last groups towards the closing holes. The front nine is pretty much deserted. Big birdie putt from Inbee Park coming up.

Ko Jin-young has missed the birdie putt on 14, very fast and to the left of the hole. A par on 14, a hole that holds a real chance to gain ground. She puts her hand to her eyes and manages a rueful smile. You can't help but feel the momentum is now with Inbee Park.

Ko Jin-young has a birdie chance of her own, but it's trickier than she should have liked on the par-five 14th. Stand by for changes at the top of the leaderboard.