Niamh Coyne said her Youth Olympic Games silver medal is in "the top one" of her achievements" after the Dubliner burst to a podium finish in Buenos Aires.

Coyne finished behind Russian Anastasia Makarova in a time of 1:08.90 in the women's 100m Breaststroke final thanks to a brilliant final 25 metres.

Lithuania’s Kotryna Teterevkova took the bronze medal in 1.08.95, with another Irish competitor, Mona McSharry, just 0.02 of a second behind her in fourth.

Trying to soak up the scale of her feat, Coyne admitted it was a welcome surprise.

"I wasn't expecting to medal out here," she said.

"It's October, a bit of a weird time for swimmers. I was really happy with it. The first 50m I just needed to build and get my turn right. After that, I just had to go for it.

"I couldn't see anyone, even on the turn. I didn't know where I was. I was just like, 'touch the wall, touch the wall and be finished!'.

"I was shocked; shocked and happy. This is in the top one!"