27-year-old Blommetjies will follow fellow Cheetahs player Uzair Cassiem to Parc y Scarlets this summer.
The 26-year-old was the fastest qualifier and lived up to that billing, finishing in two minutes 05.45 seconds, a Games record.
The 23-year-old set a new world record during her final throw of the F46 Javelin final.
The 17-year-old came second in the Women's Floor on day five of the Commonwealth Games.
Tesni Evans has won Wales' first Commonwealth Games squash medal in 20 years.
The former World Champion suffered a muscle tear in training in Australia and will not be able to start the 400m Hurdles heats on Tuesday.
Para champion Olivia Breen has secured gold in a new Commonwealth record.
Cyclist Elinor Barker won gold in the women's 25 km.
The 26-year-old came second in the Men's Kierin on the Gold Coast in Australia.
Welsh weightlifter Gareth Evans from Holyhead is the first competitor to win gold for Wales in the Commonwealth Games.