During the WMF Nations Cup 2011 in Stockholm, Sweden, one of my playing partners - Swedish Minigolfer Fredrik Persson - scored a Perfect Round of 18(-18) and in the process claimed the course record at the Tantogårdens BGK course at the Tantolunden Park in Stockholm, Sweden
Video: Fredrik Persson hits a hole-in-one on the final Hole of his Perfect Round of 18(-18) during round 6 of the 2011 WMF Nations Cup International Minigolf Tournament in Stockholm, Sweden.
European WMF standardised Miniature Golf (Eternit) courses enable players to score perfect rounds of 18(-18) as there is an 'Ace Line' on each hole. The minigolf website Minigolfnews.com holds records of such achievements and states that almost 300 players have achieved perfect rounds of 18 on Eternit Miniature Golf! In the UK our Crazy Golf, Minigolf, Putting and Adventure Golf courses do not allow for such scores due to the design and build of the course.
Webpage of the WMF Nations Cup and World Minigolf Championships 2011.
WMF Nations Cup 2011 Results for Fredrick Persson.
Video of my 'Perfect' Round of 9(-9) on a Crazy Golf course in Lincolnshire!