With 5 teams in the world's top 20, 3 in the top 10 and 3 2015 FIFA Women's World Cup quarter finalists, the AFC Women's Olympic Qualifiers were always set up to a battle royale and Match Day 1 didn't disappoint.

China 2 - 0 Vietnam

Goalscorers: Gu Yasha 57', Zhang Rui 63' (p)

Vietnam proved a resilient opponent as they held China for a half before the class of the Steel Roses took over.

Vietnam's tightly packed defence caused problems for China in the opening half as they struggled to break down the defensive block.

The second half didn't start much better when captain Li Dongna missed a 51st minute penalty but China soon had a deserved lead when Gu Yasha turned home Ren Guixin’s cross. Zhang Rui took on the penalty duties six minuted later and this time she turned it home for a hard fought win.

China head coach Bruno Bini: "My team has a tendency to follow other teams like a chameleon, so if we are facing a team that’s not too strong we also play that way, but if we play the likes of England or USA we become stronger.”

“So, when we play stronger teams here we’ll also be stronger – it’s also a good sign that we didn’t play a great game but still managed to win."

Vietnam coach Mai Duc Chung: “Everybody can see that the Vietnamese players compared with the Chinese are physically smaller, but we’re really happy with the sprit we showed and we fought 100% throughout.”

Australia 3 - 1 Japan

Goalscorers: Lisa De Vanna 25', Michelle Heyman 40', Yuki Ogimi 45+2', Katrina Gorry 77'

Australia stunned Japan as they defeated the hosts on home soil for the first time.  It was a tight clash between the two AFC powerhouses with Japan denied early before Australia claimed the lead.

Gorry teed up De Vanna at the back post with the Matildas co-captain heading home.   Heyman doubled the lead when she latched onto a De Vanna through ball, with a timely assist from the referee, to catch Japan in transition. The Canberra United striker rounded the goalkeeper to tuck home a second. Confusion in the Australian goal in the last play before half time saw Ogimi tap home to halve the lead.

Japan poured on the pressure early in the second half forcing scrambling defence from Australia. Lydia Williams denied Miyama before Australia settled, and some fresh legs in Kyah Simon and Caitlin Foord, turned the game back their way.  Emily van Egmond paced well flighted ball to the back post with Gorry sealing the game with a header back across the face of goal.

Australia coach Alen Stajcic: “It is a very historic win, I think it’s the first time we’ve beaten Japan in Japan and from my memory it’s the first time we’ve beaten a World Cup champion in an official tournament so it’s certainly a big moment.”

“We’ve still got four matches left and we know they will be tough – we’ll enjoy this win for one hour and then we’ll focus on our next match because if we think this is enough then we won’t qualify.”

Japan coach Norio Sasaki: “We have no regrets about the result because we came fully prepared with a plan that we thought would work but they never really allowed us to settle into a rhythm.”

“Australia played a really aggressive style of football but the key point really was the defensive organisation of Australia and we need to switch our mindset to the next game.”

DPR Korea 1 - 1 Korea Republic

Goalscorers: Jung Sul-bin 32', Kim Un-ju 80'

DPR Korea and Korea Republic played out a tight 1-1 draw with Jung Sul-bin's first half goal cancelled out by Kim Un-ju's late equaliser.

“We have done well in the first match, next up is Japan. I’d like to analyse their team and hope we can play better than tonight in that game.”

DPR Korea started well with an effort from Ri Ye-gyong in the second minute forcing a save from Kim Jung-mi before being cleared. Jung's goal came through the excellent lead up work of Seo Hyun-sook and Lee Mina to set up the forward which she duly tucked away.

The second half saw DPR Korea push for an equaliser but it took a scorching 25 yard strike from Kim Un-ju to bring DPR Korea even.

Korea Republic coach Yoon Duk-yeo: “In the second half, DPR Korea’s superior stamina saw them equalise. We prepared very well, but DPR Korea has outstanding physical capability compared to our team."

DPR Korea coach Kim Kwang-min: “In today’s game our players didn’t play very well or in keeping with my intentions. I think they were so excited to play in the first match.”

“Unexpectedly we conceded first and now we have to do our best in the next game. I will tell my players to be calmer and to play as I know they can.”