2015 Andy Murray tennis season partnered his brother Jamie, and they won in five sets against the pairing of Sam Groth and Lleyton Hewitt, the results guiding Great Britain to the Davis Cup final for the first time since 1978. Andy Murray reached the semifinals after victories against Steve Johnson and John Isner, before defeating Tomáš Berdych in straight sets including a run of nine games in a row. In the semifinals he lost to Novak Djokovic for the fifth time in the season, but the result along with Federer's early exit from the tournament ensured that Murray returned to the No. 2 ranking. Murray
2016 Andy Murray tennis season to defend the Olympic singles title. In the 2016 season, Murray became the first male player to win singles titles at a Grand Slam, the Olympics, a Masters 1000 event, and the ATP Finals in the same calendar year (Serena Williams, in 2012, is the only other person to accomplish this feat). On 7 November, Murray became the first British man and twenty-sixth male player to attain the world No. 1 ranking in singles since records began in 1973, displacing long-time rival and friend, Novak Djokovic. At , Murray is the oldest first-time singles No. 1 in the last 40