In 2005, MacArthur beat Francis Joyon's existing world record for a single-handed non-stop circumnavigation. MacArthur in the trimaran "B&Q/Castorama" sailed at an average speed of 15.9 knots. Her time of 71 days, 14 hours, 18 minutes 33 seconds beat Joyon's then world record time by 1 day, 8 hours, 35 minutes and 49 seconds. She had no more than 20 minutes' sleep at a time during the voyage, having to be on constant lookout day and night. On 23 November 2007 Joyon set off in "IDEC 2" in an attempt to beat MacArthur's current world record for a single handed circumnavigation. He achieved his goal in 57 days, 13 hours 34 minutes and 6 seconds. Despite Joyon's reclamation of the record, Robin Knox-Johnston still described MacArthur's time as an "amazing achievement".