Katie Taylor is through to the women's Olympic lightweight final after a 17-9 win over Mavzuna Chorieva this afternoon.
Taylor guaranteed herself at least a silver medal with a comfortable victory over the Tajikistani boxer, winning every round of the semi-final at the ExCel.
The Bray boxer took a 3-1 lead in round 1, attacking from the start with little response from Chorieva.
Taylor, demonstrating the kind of sleek footwork most boxers in the men's draw could only dream of possessing, did most of the damage with a string of left hands as Chorieva tried to avoid the Irish woman's potentially devastating right overhand.
The Irish fighter connected with two strong punches in the second round and looked in total control as she extended the lead to 7-3.
"It is incredible. This is a dream come true for me" - Katie Taylor
Chorieva tried to bridge the gap in the final round but it had little say and the eight-point win set up a final clash tomorrow at 4.45pm.
"To be boxing in front of so many Irish fans, it is better than I thought it could be. I feel like I am in heaven right now, it is amazing." Taylor told RTÉ afterwards.
"It is going to be a 50-50 fight in the final, the pressure is always going to be on both boxers as we are both boxing for gold.
"I have to go back, refocus for tomorrow and I would love to bring gold back for my country."
Katie Taylor will meet Russia's Sofya Ochigava in the final.
Ochigava progressed in a similarly professional manner - winning 17-11 - but did not mince her words ahead of the final, saying there was bias in favour of the Irish fighter..
"She is one of the best, but she is just another boxer. In my opinion Natasha Jonas won the first two rounds against her, but the judges didn't see it that way," Ochigava said.
"When you fight Katie you are already minus 10 points. You are fighting the judges and the whole system and they will try to give her too many points."
Elsewhere, three-times world champion Ren Cancan from China beat Marlen Esparza of the United States 10-8 in a virtually punch-free contest in the women's flyweight semi-finals.
She will fight Nicola Adams for the first women's Olympic boxing gold after the Briton, twice a runner up to Ren at the worlds, beat India's Mary Kom in front of British Prime Minister David Cameron, watching on in a 'Team GB' t-shirt.
And in the middleweight division, Claressa Shields of the United States won her semi-final bout.
Shields beat Kazakhstan's Marina Volnova to advance to the final while Volnova went home with a bronze.
Shields will face Russia's Nadezda Torlopova, who won her semi-final against China's Li Jinzi to advance to the final while Li went home with a bronze.