The 21 - year - old American will be over the moon though as he leads 2 Up in the top match .
12.31 pmMcDowell stops the rot against Spieth with a half at the 4th .
The 21 - year - old American will be over the moon though as Spieth leads 2 Up in the top match .
12.31 pmMcDowell stops the rot against Spieth with a half at the 4th .