Complex sentence: He holds a share of the course record at Carnoustie with a 64, achieved in the final round of the 2007 Open Championship which saw him jump 27 places at the tournament to finish on a tie for 4th with Ernie Els.
Split into simpler sentences: He holds a share of the course record at Carnoustie with a 64, achieved in the final round of the 2007 Open Championship. This round saw him jump 27 places on the last day of the tournament to finish on a tie for 4th with Ernie Els.