The 38-year-old started on the back nine of the Montgomerie Maxx Royal and went two-over through his first five holes, but then something magical happened.
The three-time European Tour winner played superlative golf to stand out amongst the best and carded four birdies to stitch up his outward nine.
Otto was clearly on a roll and it continued onto the front nine, where birdied the par-five first hole and began to inch towards record territory.
Birdies at the second and third holes meant that the Mauritius local was sitting on the cusp of a new European Tour achievement of seven consecutive birdies, but it was not to be.
Last year Raphael Jacquelin shot 62 to set a new course record in Turkey and this week the scoring went low once again.
Otto revealed just how available the track was by pencilling in a seven-birdie stint. He went on to sign for 67 and shared sixth place early in the day.
Two months ago he lifted the Open D’Italia trophy and he’ll surely be looking to win again before the European season ends. The Finals Series is drawing to a close and he’s paying the type of golf that wins big tournaments.