According to The New York Times, the 2025 edition of the World Stone Skimming Championships in Scotland was host to an unspecified number of contestants attempting to doctor their skimming rocks for maximum bouncing action. “So I think if it had been happening in previous years they would have told me then.”A stone skimmer winds up. “The flat edges seem to slice through the water, where rounder edges seem to gallop through the water. The flat square edges give a little more grip, as well.”The History of the World Stone Skimming ChampionshipsAccording to Mathews, the skimming championships began in 1983 and were held sporadically until 1997, when it became an annual affair. If you don’t need to adhere to official skimming rules, you might benefit from a bulkier stone.