Final score: Ireland 19-17 Australia
Muldoon, Griffin & Spence scores tries as hosts edge win
Murphy, Parry, Samoa tries, Hewson con for Aus
Final score: Wales 12-44 New Zealand
Harries and Clay both cross for Wales but NZ run in eight tries
Final score: England 56-5 Spain
Wing Wilson leads the way with four tries as champions score 10 in all
Over to Wales now - can they fight back from their 20-0 half-time deficit against New Zealand? Dafydd Pritchard will guide you through the rest of that one.
Image source, PAEngland 56-5 Spain
England captain Sarah Hunter speaking to ITV: "We're happy to get a win under our belts. It's job one done. There's plenty for us to improve for our next game.
"Spain came at us and gave us some problems at times. It's pleasing to get that run out and get that training on the pitch.
"Since we've arrived here, our focus has been on us and we've not taken on the external pressure. It's one job at a time.
"At times we did OK but we have to go away and work on some aspects. In tournament rugby you have to win every game in front of you."
Image source, Getty ImagesEngland 56-5 Spain
England 56-5 Spain
Kat Merchant
2014 England World Cup winner on Radio 5 live sports extra
England have shown they are really adaptable. They showed their different game plans and they stuck to the forwards heavy carries and the backs playing out wide.
They have showed they have more than one trick up their sleeve, which is great to see.
England 56-5 Spain
Spain continue to dally in the centre of the pitch until England turn it over and clear out.
A big England win to open their defence of the World Cup.
England 56-5 Spain
England's driving maul powers towards the try line but Spain hold their own and regain possession.
We're into the 81st minute, so they could kick it out and end the match. But they want to play on!
Spain earn a penalty. Will they tap it or go for the line-out? Line-out it is.
England 56-5 Spain
Spain are penalised at the scrum and England kick to touch for a line-out.
They're intent on racking up more tries before the buzzer sounds...
Kat Merchant
2014 England World Cup winner on Radio 5 live sports extra
England have done incredibly well, despite a complete turnaround in positions, with a new 10 and 12.
Lydia Thompson
And another!
England get no luck on the left flank so they feed across the line to the right.
Amber Reed draws in two Spanish players before supplying Lydia Thompson, who's waiting to dab down in the corner for her first World Cup try.
Another missed conversion from Emily Scarratt follows.
England 51-5 Spain
England earn a scrum just outside the 22, dead centre.
"Let's go Rocky," screams a voice from inside the pack at Rochelle Clark. That's a cool nickname. Strong.
England push on the attack and feed out left. Amy Cokayne is four metres short after her darting run but she's held up.
Can they get a 10th try?
Image source, PAWales 0-20 New Zealand
Dafydd Pritchard
BBC Sport Wales in Dublin
New Zealand really are ruthless.
As if one breakaway Black Ferns try towards the end of the first half wasn't galling enough for Wales, another comes on the stroke of half-time.
Again it's wing Renee Wickliffe, this time intercepting a pass in her own half before speeding clear.
Image source, PAKat Merchant
2014 England World Cup winner on Radio 5 live sports extra
Amy Cokayne comes in and hits the back out of the line-out with a massive throw, the experienced forwards drive over and manage to get the ball down. That is a brilliant try.
Wales 0-15 New Zealand
Dafydd Pritchard
BBC Sport Wales in Dublin
That period of Welsh pressure amounts to nothing.
Their decision to kick to the corner and use their maul - which has worked well so far - backfires as they lose possession, concede a penalty and New Zealand clear before counter-attacking ruthlessly and scoring through Renee Wickliffe.
Image source, PAAmy Cockayne
Try number nine on the board!
A driving maul from the line-out powers over the line and Amy Cokayne, on as a replacement in the front row, gets the golden touch.
No conversion again. Still, this is now officially a rout.
England 46-5 Spain
Megan Jones looks like she's about to crash over but she's held up just before the whitewash.
England feed out to the right and Lydia Thompson is ready and waiting in the corner to pounce, but she's pulled into touch by some super Spanish defending.
Image source, Getty ImagesEngland 46-5 Spain
We're heading for the final 15 minutes in Dublin.
The scoreline suggests England might choose to conserve some energy.
But the Red Roses continue to push forward.
Image source, Getty ImagesWales 0-10 New Zealand
Dafydd Pritchard
BBC Sport Wales in Dublin
Wales are enjoying their first spell of pressure, driving relentlessly at the New Zealand try line but repeatedly repelled by the black wall.
There's not long to go until half-time but, if Wales can get within a score of the Black Ferns, Rowland Phillips and his players will be delighted.
Alex Matthews (con Scarratt)
Spain snatch England's line-out but as Marina Bravo goes to kick clear, Rochelle Clark charges down and Alex Matthews thinks she's touched down.
The TMO says... yes! The England replacement gets a finger to it.
Emily Scarratt lands the conversion.
England 39-5 Spain
England continue to search for try numero ocho.
They earn a penalty and kick to the corner for a five-metre line-out.
Image source, PAEngland 39-5 Spain
England attack and Emily Scarratt makes 40 metres on a solo charge, chipping forward and taking on three or four red shirts.
But the ball eventually runs away from her and is cleared out by Spain.