Great Britain’s Karriss Artingstall is guaranteed at least a bronze medal after beating Australia’s Skye Nicolson by a split decision on day five of the Tokyo Olympics.

She will face either Romania’s Maria Claudia Nechita or Japan’s Sena Irie.

It was the third Team GB win of the day, after Ben Whittaker and Lauren Price both reached the quarter-finals.

Following the win, Artingstall said she was “over the moon” to have won a medal but she already had her “head set on the next one”.

“In the last round, I just had to go out and up the tempo. I believe in myself and back myself when it comes to physicality,” she told BBC One.

“I’m a fit girl, so if you want to go toe-to-toe with me then I’ll go all day, but I am better at boxing so I’ll stick to that.

“I’ve got two days off now, finally. Little rest, few ice baths, tick over a little bit. Then get my head set on the next one.

“I’m over the moon to be on the podium. Hopefully I can go and change the colour of the medal in two days’ time.”

Boxing commentator Steve Bunce said Artingstall had done brilliantly so far against better-ranked opponents, and “all bets were off” for the Briton now she was in the semi-final.

“The last 10 seconds when Skye Nicolson pinned her back I thought that would be the decider – she had a good few minutes,” Bunce told BBC TV.

“Karriss Artingstall is elated. She is beating people she’s meant to lose to. She’s beaten the number three seed; she’s just beaten the Commonwealth Games champion.”

Earlier on Wednesday, men’s light-heavyweight Whittaker cruised past Egypt’s Abdelrahman Oraby on points, winning every round.

Women’s middleweight Price was awarded every round by all five judges against Mongolia’s Myagmarjargal Munkhbat.

Reigning world champion Price, who has also won 52 caps for the Wales women’s international football team, is the number one seed in Tokyo.

Whittaker fights Brazil’s Keno Machado on Friday, while Price will face Panama’s Atheyna Bylon on Saturday.