Huge cheers greet American Lizette Salas and Jodi Ewart Shadoff as they stroll up to the 18th green.

Salas will putt first and has the chance for glory. The win is all-but guaranteed but if this drops the United States' win in the 2017 Solheim Cup will be confirmed.

The Iowa course drops silent. Here she comes...

The cameras have picked out Georgia Hall who is being consoled by her captain Annika Sorenstam. A quite brilliant performance from the 21-year-old this week despite her defeat to Georgia Hall back. Hall will be around in European teams for a long time to come.

Iain Carter
BBC Sport golf correspondent at Des Moines Golf and Country Club

Catriona Matthew's victory over Stacy Lewis caps a remarkable contribution for the late replacement for Suzann Pettersen. She came from three down after eleven to land a full point. Over the week she collected three out of four points, an outstanding haul for the 47 year old. Matthew is favourite to be Europe's next skipper, maybe she should be player/captain at Gleneagles?

Lexi Thompson Halved Anna Nordqvist

Paula Creamer wins 1UP Georgia Hall

Cristie Kerr wins 2&1 Mel Reid

Stacy Lewis loses 1UP Catriona Matthew

Angel Yin A/S Karine Icher (After 17)

Michelle Wie loses 4&2 Caroline Masson

Lizette Salas 1UP Jodi Ewart Shadoff (After 17)

Brittany Lang A/S Charley Hull (After 15)

Brittany Lincicome loses 4&3 Carlota Ciganda

Gerina Piller 3UP (After 14) v Florentyna Parker

Austin Ernst v Madelene Sagstrom 2UP (After 14)

Danielle Kang 3UP v Emily Pedersen (After 13)

Another match over but not the match that seals victory. This one has never looked in doubt with Carlotta Ciganda leading ever since the second hole. In the end she seals the win with three holes left and we are made to wait for the moment the United States win the Solheim Cup.

There are hugs around the US team. They have done the maths. The United States now lead by 13½ points to 8½. With Lizette Salas one up with one to play that guarantees that the US will reach the 14 points they need to retain the trophy.

Just wide again! Yin wanted the glory. She attacked her putt but it stays right of the hole. Gasps from the crowd.

But Yin finishes off her return putt another match halved.

That all-but confirms the US retaining the Solheim Cup.

On to the 18th with the Yin/Icher match all square.

Both players have found the green in two but it will be Europe's Icher to putt first from 25 or 30 feet.

The crowd think this could be where the United States' win is sealed. The green on the final hole is still packed.

A great effort from Icher as her putt cuddles up to the hole but it doesn't drop. That means Angel Yin has a putt for the United States to retain the Solheim Cup...

Salas' putt drifts just wide. Still we go on. Europe are still fighting but the United States have guaranteed another half-point.

Is this the moment? Lizette Salas is eyeing up a 30 foot putt that would seal victory over Jodi Ewart Shadoff and see the United States retain the Solheim Cup...

Well, well. There's two matches back quick for Europe. Things are still looking bleak but Annika Sorenstram's team are not giving up.

Angel Yin and France's Karine Icher are heading down the 18th. Could that be the match which seals the win for the United States?

Another point for Europe. The US lead is back at five. Catriona Matthew has a brilliant smile on her face. Remember she was not meant to play this week until an injury to Suzann Pettersen. The Scot wins her match against Stacy Lewis with another solid par on the 18th having trailed all the way until the 15th.

I don't think it will matter but Europe have reduced the gap.

Caroline Masson beats Michelle Wie.

Backs to the wall stuff for Europe now but Catriona Matthew is doing what is required. The Scot makes a solid par while her opponent Stacy Lewis misses a relatively short putt and makes bogey. Matthew is now one up going as they head to the 18th with USA a win away.

United States Lexi Thompson talking to Sky Sports after her thrilling halved match against Anna Nordqvist: "I'm very proud of myself. It was a really bad front nine but Juli (Inkster) was keeping my head up. To be the first match was a great honour. I wanted to win the full point for my country but I did my best."

Is there any way Europe can do this?

Catriona Matthew is all square with Stacy Lewis in the next match on the course after 16 holes. If the United States don't win that one then it may be Angel Yin who clinches victory as she is one up on Karine Icher after 15.

That was a pretty wretched few minutes for the European team. They have taken two and a half points from the top three matches. The end is nigh. The United States need one point to retain and one and half to win outright.

I think this is now a matter of who will be the player to hit that winning putt.

Creamer misses but it's good enough for her next to be conceded.

A nasty putt for Hall now for a half point. No! The rookie is tentative and the ball dribbles wide. A horrible way to lose.

Another point for the United States.

25 feet for Hall and her putt starts right and stays right. Creamer will now have 10 feet to win the match...

All eyes on 18 but under the radar the US have another in the bag. Cristie Kerr beats Mel Reid and the hosts are just two away.