Rory Patrick Lamont made a memorable try-scoring debut for Scotland in the RBS 6 Nations match against Wales in March 2005, and he followed that up with two tries in his first Rugby World Cup appearance, when Scotland won their opening match in the 2007 tournament by beating Portugal 56-10 in St Etienne. He had two more in Scotland’s next RWC game, the 42-0 win against Romania at Murrayfield. In his 2005 debut he joined his elder brother, Sean: they are the 19th set of brothers to play together for Scotland. Rory’s Scotland debut was swift progress to the national team after only 10 games for Glasgow in his first season of professional rugby.

After four starts on the wing for Scotland in 2005 and three replacement appearances in the 2007 Six Nations Championship he moved to full back for the World Cup warm-up matches against Ireland and South Africa at Murrayfield in August that year, and he continued in that role for four of the five RWC games as well as the Murrayfield match against France in which Scotland’s opened their 2008 RBS 6 Nations Championship programme. He missed the subsequent international against Wales, and on his return for the Dublin match against Ireland he was on the wing, as he was in the  subsequent Murrayfield win against England, though injury in that game forced him to miss the championship finale against Italy.

After the 2007 RWC he was voted for The Famous Grouse award, decided on a poll of journalists based on performances over the two warm-up matches and the tournament games. That honour followed on from his brother, Sean, receiving The Famous Group Scotland player of the season award for 2006-2007. Rory’s switch to full back had been forecast with his two games in the No.15 jersey for Scotland A in the Churchill Cup tournament in England earlier in the year. Rory made his Scotland A debut in the 2006 Barclays Churchill Cup competition in Canada, starting in the victory over England A and the final against NZ Maori and coming off the bench in the win against Canada. Later that year, continuing in that team, though in the unusual position of inside centre, he scored a try against Australia A in his home city, Perth, and in March 2007 he was on the left wing in the A international win against Italy, also at McDiarmid Park. Then he was full back for Scotland A in the two Churchill Cup matches in which he played in May that year, scoring the try in the win against the USA at Henley. Both brothers were educated at King Edward VII School in Melton Mowbray in the English Midlands, and Rory then went on to study for a sports science degree at Northampton University. While at university, at the age of 17, Rory was enlisted in Northampton Saints’ academy. After four years in the academy he took a season’s rest from rugby because of a shoulder injury as well as concentrating on finishing his degree course.

In summer 2004 Rory came north to join Glasgow Hawks, with the intention that playing for Scotland's dual club champions would bring him to the attention of the Glasgow professional team’s coaches. His potential was quickly recognised, and an initial short-term contract allowed him to join brother Sean in the Glasgow squad. Rory played in warm-up games against Leeds Tykes and Sale Sharks, and his Celtic League debut was as full back in Glasgow’s 36-22 win against Border Reivers in November 2004. Rory’s first try for Glasgow was in the 27-all draw with Ospreys in the Celtic League match at Hughenden in January 2005. Later that season he notched up three tries against Llanelli in Glasgow’s 57-30 victory at Stradey Park, and brother Sean scored twice in the same match. Rory moved from Glasgow to Sale Sharks for season 2007-2008 and then joined Toulon in 2009. Earlier this season he rejoined Glasgow Warriors.