Paralympic swimmer Nyree Kindred has won a silver medal in the women's 100m backstroke S6.
It's the second medal won by a Welsh athlete on day one of the Games.
Swansea swimmer Jemma Lowe has missed out on a medal in the women's 200m butterfly final.
After a promising start, she came sixth - one better than at the 2011 World Championships in Shanghai - with a time of 2:06.80.
China's Jiao Liuyang topped the table with a time of 2:04.06, adding the Olympic title to the World Championship gold she won last year.