Ryles began his coaching career in 2012 with NSW State of Origin under 20s side as their assistant coach, which also carried over to 2013. Both years were successful in defeating Queensland's under 20s team. After his retirement as a player in the
National Rugby League, Ryles accepted a head coaching role for
Western Suburbs Red Devils and was their Head Coach for the 2014 & 2015 seasons, with his assistant being
Mark Riddell. They were eliminated by the
Helensburgh Tigers in back-to-back seasons under Ryles, in 2014 in the semi-final and in 2015 they would go on to make the Grand Final, losing 16-10 to the Minor Premiers in what would be Helensburgh's first mens title since 1993. At the end of 2015, Ryles was approached by the
Melbourne Storm to join their staffing team as assistant coach where he held this position until autumn 2020. While at Melbourne from 2016–2020, Ryles has also periodically assisted in coaching
England's national rugby union team. In 2016 and 2017, Ryles was appointed assistant coach for the Junior Kangaroos. In autumn 2020, Ryles joined England as skills coach on a full-time basis. However he missed the
2021 Six Nations Championship due to travel restrictions relating to the
COVID-19 pandemic. He left the role in May 2021. In 2022, he joined the
Sydney Roosters as an assistant coach. In 2023, he joined the coaching staff of the
Australia national rugby union team for the
2023 Rugby World Cup. In 2024, he returned to the
Melbourne Storm and was appointed the Coaching Coordinator there. On 8 July 2024, the
Parramatta Eels announced he was appointed as the head coach on a four-year deal starting in 2025. Ryles tenure as Parramatta's new head coach got off to a disastrous start with the side losing 56-18 against Melbourne in round 1 of the
2025 NRL season. After suffering four losses in a row to start the season, Ryles earned his first win as Parramatta head coach in round 5 against St. George Illawarra. Ryles would eventually guide Parramatta to an 11th placed finish in his first year as the clubs new head coach recording ten wins. In round 1 of the
2026 NRL season under Ryles, Parramatta lost 52-4 against Melbourne. Parramatta became the first team since the competition began in 1908 to concede 50 points in back to back seasons in round 1. In round 6 of the 2026 NRL season, Parramatta were beaten by the Gold Coast 52-10. It was Parramatta's biggest loss at home for 31 years. == Statistics ==