The second Ward Evans Atlantic Rowing Challenge will start on October 7, with 37 two-person teams from 13 countries setting off from Los Gigantes in Tenerife for Port St Charles, Barbados.

Competitors use identical boats so each team has an equal chance of winning, but their seamanship is likely to be tested by adverse weather, 50ft waves and possibly sharks.

The broker-sponsored race was launched in 1997 and is held every four years. It was last won by New Zealanders Rob Hamill and Phil Stubbs, who covered the 3,000 nautical miles in 41 days.