Dyke made his debut for Wales on 1 December 1906 versus South Africa and was selected for the 1908 British Lions tour to New Zealand and Australia.
A year later Dyke was involved in a turn around of events when chosen to win his first full international cap against the 1906 touring South Africans.
Dyke was one of three new caps against the Springboks, but critics felt that in their club games running up to the international encounter none of the players reached their full potential, but were better than any of their rivals.
[4] On the other hand, Winfield had an exceptional spiral punt, which was not matched in Wales until Vivian Jenkins in the 1930s, and Dyke's kicking was considered as far inferior.
[4] The Welsh team were beaten heavily, but if it hadn't been for Dyke the scoreline may well have been much worse,[5] as his heavy tackling as the last defence prevented further runaway scoring.