LONDON — Playing like the Roger Federer of old, the 16-time Grand Slam champion from Switzerland easily beat Andy Murray 6-4, 6-2 at the ATP World Tour Finals on Tuesday.

LONDON — Playing like the Roger Federer of old, the 16-time Grand Slam champion from Switzerland easily beat Andy Murray 6-4, 6-2 at the ATP World Tour Finals on Tuesday.

The second-ranked Federer stretched his record to 2-0 at the season-ending tournament for the top eight players in the world, but has still not advanced to the semifinals from Group B.

Robin Soderling beat David Ferrer 7-5, 7-5 in the other Group B match, meaning all players still have a chance to advance.

Federer lost only eight points on his serve in the match at the O2 Arena — three in the first set and five in the second.

Federer has won the season-ending event for the top eight players in the world four times, and he can certainly add to that if he keeps playing like he did Tuesday.

Murray, however, dropped to 1-1 and will have to improve if he is to reach the semifinals. He will face Ferrer in his final match Thursday while Soderling takes on Federer.

Federer earned his first break in the third game of the first set, winning all four points played. He then won his next three service games at love.

In the second set, Murray saved two break points in the opening game, but Federer stayed alive through four deuces to earn a third break point, which he converted with a forehand that hit the top of the tape and zipped past Murray.

After holding at love yet again, Federer broke again to make it 3-0 and soon led 4-0.

In the late match, the fourth-ranked Soderling broke his Spanish opponent in the final game of both sets. The Swede also broke the seventh-ranked Ferrer again for a 4-2 lead in the second, but the Spaniard broke back to 5-4.

Soderling lost to Murray in the first match but can still advance with a win over Federer on Thursday, depending on the result in the Murray-Ferrer match. Ferrer has a slim chance of advancing, but must beat Murray in straight sets and hope Federer defeats Soderling.

On Monday, top-ranked Rafael Nadal rallied to beat Andy Roddick 3-6, 7-6 (5), 6-4 and third-ranked Novak Djokovic defeated Tomas Berdych 6-3, 6-3.

Nadal will take on Djokovic today, while Roddick and Berdych play in the early Group A match.

In doubles, Jurgen Melzer of Austria and Philipp Petzschner of Germany beat Lukas Dlouhy of the Czech Republic and Leander Paes of India 7-6 (9), 4-6, 10-8. Mariusz Fyrstenberg and Marcin Matkowski of Poland defeated top-ranked Bob and Mike Bryan of the United States 2-6, 7-6 (4), 10-8 in the late Group A match.