Was playing par 3 course this morning. Had a 176 yard shot and had to wait for the green to clear before I could hit. Hit an easy 5 hybrid shot. Ball hit on green and I knew it was a good shot. The single that had just walked off the green started clapping, the bottom of the pin was not visible from the tee box so I did not see it go in. When I walked up on green with my playing partner and there was not a ball on the green I knew it had to have dropped in the hole. I had back to back hole in ones 4 weeks ago playing on this same par 3 course Robert Trent Jones Opelika. Same location that PGA Barbasol tournament was played last week.