4 × 200 metres relay a situation, the outer lanes could appear to start 2/3 of the way through the first turn. The markings for such a special zone should be colored red, though many tracks deviate from the standard marking colors. On a conventionally marked track, the race can be run starting at the normal 400 metres (and 4x100 metres relay) start line. As a two-turn stagger, the first exchange would take place in the standard second passing zone of the 4x100 metres relay, the second pass taking place in the normal (lane one, extended) 4x400 metres relay zone. After that exchange, the runner
800 metres have been known to use a negative split to their advantage. A positive split is achieved by running the first lap faster than the second lap, and a negative split is achieved by the opposite, running the second lap faster than the first could help. The current world record holder, David Rudisha, runs using a positive split strategy. In his 2012 Olympic race, he ran his first lap in 49.28 seconds and his second lap in 51.63 seconds. Theoretically, an even split is the most effective strategy, but it is nearly impossible to achieve due to the race's length. As