Complex sentence: In the 1961 running of the Gwyn Staley 400, Junior Johnson recorded another pole, this time by 0.57 seconds better than the previous track record with his qualifying time of 23.52 (95.660 mph).
Split into simpler sentences: In the 1961 running of the Gwyn Staley 400 Junior Johnson recorded another pole. This time by 0.57 seconds better than the previous track record with his qualifying time of 23.52 (95.660 mph).