Edited sentence: About 17 laps into the race and the rain still coming down harder than ever, Clark had not only lapped the entire field (except for Bruce McLaren) but he was almost 5 minutes ahead of McLaren and his Cooper.After he had realized what he had done, he relaxed and gingerly drove his Lotus to victory.After starting 8th on the grid, Clark passed all of the cars in front of him, and eventually passed race leader Graham Hill later in the race.Extremely wet and rainy conditions made Spa-Francorchamps, the fastest Grand Prix circuit in the world, even more dangerous than it already was.Jim Clark's victory at this race is regarded as one of the best ever victories in Formula One