Jazmin Carlin, 19, beats Jo Jackson again in Swansea
British Gas Great Britain v Germany Venue: Wales National Pool, Swansea Date: 20-21 February
Carlin was born in Swindon but competes for Wales in the Commonwealth Games
Briton Jazmin Carlin offered further proof of her potential as she beat world silver medallist Jo Jackson for the second day running in Swansea.
The 19-year-old, who also beat Olympic champion Rebecca Adlington on Saturday in the 400m freestyle, swam one minute 59.40 to eclipse Jackson in the 200m.
Only two individual places are up for grabs for the European Championships in August, with the trials next month.
Adlington won easily in the 800m as the British team defeated Germany 207-109.
Carlin and Jackson were stroke for stroke at the halfway point of their race but Carlin took the lead at the final turn to edge out her better known colleague, who clocked 2:00.48, with Silke Lippok of Germany third.
The British team for the European Championships will be decided by national trials in Sheffield starting on 29 March.
"It's given me confidence going into the trials and I'm just really happy with my times," Carlin told BBC Sport.
Of her challenge to Jackson and Adlington she said: "There is a lot of competition in the women's freestyle and I've got to step up my game in order to make the team. Relays are important but you get a different buzz from doing the individual so I want to see if I can get a place.
"We're all really good friends and support each other but we've got to focus for the trials and see what we can all do."
Britain's Ross Davenport faced world champion Paul Biedermann in the men's 200m freestyle and was ahead of him midway through the contest.
But Bidermann enjoyed an excellent turn and stretched his lead in the final 50 metres to record a winning time of 1:47.56, with Davenport second in 1:49.24 and Robbie Renwick third.
David Davies captured five points for the British team with victory in the men's 1,500m freestyle, pulling clear after a steady start to win comfortably in 15:34.81, with Daniel Fogg battling back to finish second.
Elizabeth Simmonds won the women's 100m backstroke in 1:00.10, with Georgia Davies second, while in the men's equivalent Liam Tancock powered clear in the first 50 metres and won in 55.30, with Chris Walker-Hebborn edging out Matt Clay on the final touch to claim second in 56.80.
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