Sandes finished second in the Mt Fuji 100-mile (161km) race in Yamanashi, Japan, on Saturday.
“I will be running the Wings for Life World Run this weekend in Cape Town but just for fun and will take it very easy,” Sandes said yesterday.
“My next main race is the Western States 100-miler. It’s my final race of the Ultra Trail World Tour, so I’m hoping to get a good result.”
Sandes admitted he struggled over the final 40km, but held on to step on to the podium in his second successive Ultra Trail World Tour event, after winning the 125km Transgrancanaria in Canary Islands last month.
He completed the race in 20:19:08, trailing Salomon team-mate Francois d’Haene of France by 70 minutes, with American Mike Foote third in 20:54:10.
Having broken the record with countryman Ryno Griesel for the fastest north-south crossing of the Drakensberg just four weeks earlier, Sandes was delighted with his performance on his Mt Fuji debut.
“I was really happy with my end result as it was a very tough course,” he said.