World Record Attempt: "Highest amount of simultaneously running marbles on one marble run“ Ortwin Grüttner attempts to put up a new world record, trying to run as many marbles as possible on only one marble run. The run measures 25 meters in length and has an approximate width of 50cm. On February 27th, 2015, a total of 10.000 marbles (made of glass, measuring 15-17mm in diameter) were released on the run. Record conditions: The 10.000st marble must be released before the first marble crosses the finishing line. The flow of marbles mustn’t come to a stop during the run. Venue: Freizeitheim Ricklingen, Ricklinger Stadtweg 1, 30459 Hannover