Britain\'s Mo Farah successfully defended his European 5,000 metres title here on Wednesday on the opening day of the 2012 championships. The London Olympic hope and reigning world 5,000m champion comfortably took gold for the second successive European championships in a time of 13min 29.91sec. The 29-year-old beat home Germany\'s Arne Gabius and Polat Kemboi of Turkey. Farah, who is also the defending European 10,000m champion, hit the front with five laps remaining. At the bell signalling the last lap Farah pulled away to win by almost two seconds in what was his last 5000m appearance before the Olympics. Gabius took second in a time of 13:31.83. The Somali-born Farah won double gold in the 5000 and 10000m in Barcelona in 2010 but is opting out of defending his 10,000m title on Saturday although he is targeting both in London 2012. Elsewhere on the opening day European sprinting hope Christophe Lemaitre cruised into the 100m final where he will come up against fellow Frenchman Jimmy Vicaut. Lemaitre won his semi-final in 10:14s, pulling away in the second part of the race after a modest getaway. In Thursday\'s final he and Vicaut will meet Norway\'s Jaysuma Saidy Ndure, who won his smei-final easily enough in 10:13, his best time of the season. Lemaitre, the defending double European sprint champion, is seen as one of the biggest hopes of breaking Jamaican and US sprinting dominance at this summer\'s Olympics.