The 24-year-old missed the halfway cut in Abu Dhabi in January following back-to-back victories.
"I'm pretty knackered," said Grace, whose triumph at St Andrews on Sunday came a week after capturing the Vodacom Origins of Golf title in his native South Africa.
"I think it might not be a bad idea skipping the next one."
The Pretoria player is up to third on the European Tour money list a year after having to go to the qualifying school for a fifth time.
He will continue his pursuit of top two Rory McIlroy and Justin Rose in China later this month.
The BMW Masters in Shanghai on October 25-28 has McIlroy as its defending champion and is followed by the WGC-HSBC Champions at Missions Hills in Shenzhen.
Grace could be playing as many as eight weeks in a row with the Singapore Open, South African Open and DP World Tour Championship in Dubai to follow and then possibly three more in his home country.