Six Nations: Predictions on who will win in 2025 Six Nations is an international rugby union competition between England, France, Ireland, Italy, Scotland, and Wales. It is a fantastic event that finds its roots in the late 1800s, which makes it a historical event you should watch and bet on! KEY TAKEAWAYS The Six Nations Championship makes for a fun event to bet on due to the physicality of rugby and the high quality of matches played between these six countries.
