Complex sentence: In the Beijing Olympics of 2008 Pickering started his run too early when running the last leg of Great Britain's 4x100m relay team, as a result the baton was not passed properly and the team were disqualified.
Split into simpler sentences: In the Beijing Olympics of 2008 Pickering started his run too early when running the last leg of Great Britain's 4x100m relay team. As a result the baton was not passed properly and the team were disqualified.