Jockgrim, Germany - The World Indoor champion, USA's Brad Walker, cleared 6 metres, the best performance of the year, in a Pole Vault competition last Wednesday in Jockgrim, in the South West of Germany.

25-year-old Walker, who was also runner-up to Rens Blom at last year's IAAF World Championships in Helsinki, won the contest ahead of Australia's Paul Burgess (5.82m) and Germany's Tim Lobinger (5.73m).

His previous personal best was 5.96m, a performance he achieved at last year's Rieti meeting in Italy.

Walker is the 12th man to clear the historical barrier of 6 metres.