Britain's second seed Andy Murray eclipsed Latvia's Ernests Gulbis to win in straight sets, 6-2 7-5 6-3. Earlier, Andy Roddick eased into the third round after dispatching Igor Kunitsyn of Russia in four sets, 6-4, 6-2, 3-6, 6-2.
The 2002 Wimbledon champion, Lleyton Hewitt (photo), returned to his former glory in a three-set demolition of the fifth seed, Juan Martin Del Potro, as the women's top seed Dinara Safina and Venus Williams both eased into the third round.
After mass bets were placed on a first-round Wimbledon match on Tuesday, British media reported that tennis authorities are expected to launch an investigation. Tournament champion Roger Federer expressed his concern over the dangers of betting.
Top seed Roger Federer strolled into the third round, followed by Serbia's Novak Djokovic and France's Jo-Wilfried Tsonga, though former women's champion Maria Sharapova of Russia crashed out after defeat to Argentina's Gisela Dulko.
Second seed Andy Murray followed Andy Roddick, Martin Del Potro and French veteran Fabrice Santoro into the second round at the All England Club, though the home crowd's favourite had to battle hard to overcome US rival Robert Kendrick.
The women's top seed, Dinara Safina (pictured,) battled past Spain's Lourdes Dominguez Lino in the first round at the All England Club, as Andy Roddick and Juan Martin Del Potro dispatched Frenchmen Jérôme Chardy and Arnaud Clément.
Roger Federer has defeated Taiwan's Lu Yen-Hsun (7-5, 6-3, 6-2) and qualified for Wimbledon's second stage. The Swiss second-seed has become the top favourite after Rafael Nadal's withdrawal and hopes to win his sixth title.