The Volvo Ocean Race fleet was anticipating a possible shakeup of positions in the approach to the Straits of Malacca - and they weren't disappointed today.
The boats entered a tacking duel as they approached the top of Indonesia and the boats traded positions a number of times.
Camper was leading but overall leader Telefonica was second, just 0.3 of a nautical mile behind. Only five nautical miles separated the first four boats, adding to the pressure of racing through a narrow body of water strewn with navigational hazards.
American boat Puma received a warning of the dangers ahead after being hit by unidentified debris near the Malacca Strait, the most hazardous stretch of water the boats will face in the Volvo Ocean Race.
"It's not going to be a very peaceful few days," Camper navigator Will Oxley said. "Firstly because of the shipping and the narrow channels and secondly because we have three boats in very close company. It's about 500-odd miles to Singapore so I'm getting prepared for not much sleep."