Complex sentence: The match was the last to be contested over 36 holes of foursomes and singles matches, as the format changed to two 18 hole sets of foursomes and singles in 1961, doubling the number of points available from 12 to 24.
Split into simpler sentences: The match was the last to be contested over 36 holes of foursomes and singles matches. The format changed to two 18 hole sets of foursomes and singles in 1961, doubling the number of points available from 12 to 24.