"Against Berdych, it was a really impressive first set and a really impressive match overall.
Today, it was a good match again - not as good as yesterday, but still it was a very good match for me," Nadal said after defeating Raonic.
Earlier, Murray ended a triumphant 2016 in defeat, beaten for the first time by Goffin.
The 7-6 (7-4) 6-4 loss in the last four of the low-key year-ending exhibition will hardly worry the Scot, who ends the year at world No.1, having won the Wimbledon, Olympic gold and the ATP World Tour Finals.
Murray is a two-time winner of the MWTC but will not be fighting for a third title on New Year's Eve after being edged out by his Belgian opponent, who had never before taken a set off the Scot.
Murray's focus now turns to the Qatar Open in Doha as he builds towards his push for an elusive first Australian Open title next month.
- AAP