Joost Luiten, Maximilian Kieffer, Joachim B. Hansen and Robin Roussel share the lead at the Gran Canaria Lopesan Open on seven-under-par after Thursday's opening round. The quartet all carded rounds of 63 on the opening day at Meloneras Golf, with Luiten and Hansen both claiming eagles in their rounds. Seven players share fifth place on six-under heading into Friday's second round.