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Max Parrot - World's First Switch Quadruple Underflip 1620 - Snowboarder
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Yuki Kadono wins men's slopestyle at Burton US Open in Vail; Dusty Henricksen earns second with quad cork 1800 | VailDaily.com
16-Year-Old Marcus Kleveland Lands a Quad Cork - video Dailymotion
Billy Morgan | SunGod. See Better.
This Insanely Talented Teenager Just Landed a Quad Cork 1800… And He's Only 16!
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Snowboarding Terms Explained: Triple Cork and More
Andri Ragettli lands first-ever ski Quad Cork 1800 - ESPN Video
Marcus Kleveland Quad Cork 1800
