He added: "It took me quite a little while to settle down and stop shaking."
Mr Popplewell joined Rotherham from Pontefract Golf Club in 1995 with a handicap of one.
His feat has never been recorded before at the course in an individual competition.
The keen golfer has hit a hole in one on eight previous occasions, but never on the same day.
"There has to be a degree of luck, they were both decent shots but I'm sure luck plays its part," he said.
"Apparently you've got more chance of winning the lottery."
Mr Popplewell finished the game on 76 strokes.
As is tradition, he celebrated his win by buying a round of drinks for everyone at the club bar.
Asked about his technique, he quipped: "In my case the method was playing a wonderful, fantastic shot."
Listen to highlights from South Yorkshire on BBC Sounds, catch up with the latest episode of Look North.
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