- Haydn made his first appearance for the Quins 1st XV on the 26th September 2009 at home to Glamorgan Wanderers
- Has played for Wales at Under 16; 18; 19 & 20 age groups.
- Captained a Welsh Premiership XV against Georgia in 2012/13
- Has been the club’s first Barbarian making three appearances against – Loughborough Students (9th May 2012); Combined Services (12th November 2013) and Clontarf RFC (23rd April 2014).
- Has captained the Quins 1st XV for the 2016/17 and 2017/18 seasons and has again been chosen to lead the team in the 2018/19 season.