[3][4] After visiting Stoke Mandeville at the age of 16, he became part of the GB development squad, focusing on power lifting.

[5] In 2011, he was selected as part of the Great Britain team to attend the 2011 IPC Athletics World Championships in New Zealand.

[5] Before the end of the year Tscherniawsky had improved his discus further, posting a distance of 29.57, which gave him the gold at the England Senior Championships.

[5] In 2012, Tscherniawsky broke the 30 metre mark in two competitions; 30.23 at the National Athletics Championships in Dublin, and then improved that again in July with a personal best of 30.99 at the BWAA Grand Prix at Stoke Mandeville.

[5] His performance in the meets leading up to the 2012 Summer Paralympics saw him qualify for the Great Britain team at the Games in London, competing in the F32–34 discus category.