Alex Hall Wins | Modena Big Air 2019 

Now Playing

Chris Corning Sticks Huge 1440 for Podium | 2019 Modena Big Air 

Now Playing

Stadium Big Air Comes to Atlanta's SunTrust Park 

Now Playing

Minneapolis World Cup Glitter Video 10-17-19 

Now Playing

Men's Downhillers at Nevados de Chillán, Chile 

Now Playing

Red Gerard Lands Second Cardrona Snowboard Big Air 2019 

Now Playing

Chris Corning Wins Cardrona Snowboard Big Air 2019 

Now Playing

Mikaela Shiffrin Opens Spring Training at Squaw Valley 

Now Playing

Bose + Mikaela Shiffrin - Focus. On. 

Now Playing

Mikeala-Shiffrin-Post-18-19-season-NYC-Media-Blitz 

Now Playing

Colby Stevenson Takes Second Place in Slopestyle - 2019 Final World Cup Corvatsch 

Now Playing

Alex Hall's Best 540 - Spring Battle 2019 

Now Playing

Alex Hall's Best Rail - Spring Battle 2019 

Now Playing

Judd Henkes' 4th Place Clip - Spring Battle 2019 Follow Cam Jam Session 

Now Playing

Lyon Farrell's Winning Clip - Spring Battle 2019 Follow Cam Jam Session 

Now Playing

Julia Marino's Winning Jumps | 2019 Quebec Snowboard Big Air  

Now Playing

Jessie Diggins Places Third in 10K Freestyle | Fulan 2019 

Now Playing

Mikaela Shiffrin Caps Historic Season with Giant Slalom Globe | 2019 Andorra World Cup Finals 

Now Playing

Mikaela Shiffrin Ties All-Time Slalom Wins Record | Andorra 2019 

Now Playing

Mikaela Shiffrin Wins Super G Globe | Soldeu 2019 World Cup Finals 

Now Playing

Kiernan Fagan Breaks onto the Podium | Freeski Slopestyle | 2019 Toyota U.S. Grand Prix at Mammoth Mountain 

Now Playing

Mac Forehand's First World Cup Win | Freeski Slopestyle | 2019 Toyota U.S. Grand Prix at Mammoth Mountain 

Now Playing

Birk Irving's Winning Halfpipe Run | 2019 Toyota U.S. Grand Prix at Mammoth Mountain 

Now Playing

Judd Henkes' First World Cup Podium | Snowboard Slopestyle | 2019 Toyota U.S. Grand Prix at Mammoth Mountain 

Now Playing

Mikaela Shiffrin's Historic 15th Win This Season | Špindlerův Mlýn Slalom 2019 

Now Playing

Mikaela Shiffrin Takes Third in Špindlerův Mlýn Giant Slalom - 2019 

Now Playing

Olivia Giaccio Sends Historic First Cork 1080 in Women's Moguls 

Now Playing

Travis Ganong's Fifth Place Run in Men's Super G - 2019 World Cup Kvitfjell  

Now Playing

Chloe Kim’s 2nd Place Run in Women’s Halfpipe Final - 2019 Burton U.S Open 

Now Playing

Maddie Mastro's Historic Win in Women’s Halfpipe Final - 2019 Burton U.S. Open 

Now Playing

Red Gerard Takes First in Men’s Snowboard Slopestyle Final - 2019 Burton U.S. Open 

Now Playing

Red Gerard’s 1st Place Run in Men’s Slopestyle Semifinal - 2019 Burton U.S. Open 

Now Playing

Maddie Mastro’s 3rd Place Semi-Final Run in Women’s Halfpipe - 2019 Burton U.S. Open 

Now Playing

Julia Marino’s 2nd Place Run in Women’s Snowboard Slopestyle Semifinal - 2019 Burton U.S. Open 

Now Playing

Chloe Kim’s First Place Semi-Final Run in Women’s Halfpipe - 2019 Burton U.S. Open 

Now Playing

Julia Marino Takes Second in Women’s Snowboard Slopestyle Final - 2019 Burton U.S. Open 

Now Playing

Arielle Golds’s Second Place Semi-Final Run in Women’s Halfpipe - 2019 Burton U.S. Open 

Now Playing

Ben Ritchie Takes Second in Men's Slalom - Junior World Ski Championships 

Now Playing

River Radamus Wins GS - 2019 Junior World Ski Championships 

Now Playing

Ladies' Classic Team Sprint Final - 2019 Seefeld World Champs 

Now Playing

Jaelin Kauf Takes Second in Dual Moguls 2019 - Tazawako, Japan 

Now Playing

Brad Wilson Takes Third in Moguls - Tazawako, Japan 2019 

Now Playing

Mikaela Shiffrin Wins Parallel Slalom - 2019 Stockholm City Event 

Now Playing

Brita Sigourney Halfpipe Run 1 - 2019 Calgary World Cup 

Now Playing

Hunter Hess Halfpipe Run 3 - 2019 Calgary World Cup  

Now Playing

David Wise Wins Halfpipe - 2019 Calgary World Cup 

Now Playing

Mikaela Shiffrin Wins Historic Fourth Straight World Championships Slalom Gold - Åre 2019 

Now Playing

Jessie Diggins Wins Women's Sprint World Cup - Cogne 2019 

Now Playing

Lindsey Vonn Career Tribute - U.S. Ski & Snowboard 

Now Playing

Mikaela Shiffrin Giant Slalom Run 2 and Post-Race Interview Åre 2019 Alpine World Championships 

Now Playing

Mikaela Shiffrin Giant Slalom Run 1 Åre 2019 Alpine World Championships 

Now Playing

Tess Johnson Takes Third in Dual Moguls 2019 World Champs - Deer Valley 

Now Playing

Jaelin Kauf vs. Tess Johnson - Women's Dual Moguls Semi Final 2019 World Champs - Deer Valley 

Now Playing

Ski Racing Legend Ingemar Stenmark Greets Lindsey Vonn at the Finish of Her Final Race - Åre World Championships 2019 

Now Playing

Lindsey Vonn's Final Race: an Historic Bronze at 2019 Åre World Championships 

Now Playing

Men's Dual Moguls Semi Final 2019 World Champs - Deer Valley 

Now Playing

Bradley Wilson Takes Second in Men's Dual Moguls Final Run 2019 World Champs - Deer Valley  

Now Playing

Jaelin Kauf Takes Second in Dual Moguls 2019 World Champs - Deer Valley 

Now Playing

Noah Bowman Wins Third Place in Ski Halfpipe 2019 World Champs - Park City 

Now Playing

Aaron Blunck Wins Ski Halfpipe World Champs 2019 - Park City 

Now Playing

Brita Sigourney Takes Third in Women's Ski Halfpipe World Champs 2019 - Park City 

Now Playing

Scotty James Wins Snowboard Halfpipe 2019 World Champs - Park City 

Now Playing

Maddie Mastro Lands A Spot on the Podium Snowboard Halfpipe 2019 World Champs - Park City 

Now Playing

Chloe Kim Post Win Snowboard Halfpipe 2019 World Champs - Park City 

Now Playing

Chloe Kim Wins Snowboard Halfpipe 2019 World Champs - Park City  

Now Playing

Vonn Crash 2019 - Åre World Championships  

Now Playing

Shiffrin Super G World Champion - 2019 Åre World Championships 

Now Playing

Lindsey Jacobellis and Mick Dierdorff Win Team Snowboardcross 2019 World Champs - Solitude Mountain 

Now Playing

Alex Hall Ski Big Air 2019 World Champs - Park City  

Now Playing

Julia Krass Takes Second Ski Big Air 2019 World Champs - Park City 

Now Playing

Mick Dierdorff Wins 2019 Snowboardcross World Champs - Solitude Mountain 

Now Playing

Lindsey Vonn Returns to the World Cup - Downhill Day 2 - Cortina - 2019 

Now Playing

Lindsey Vonn Gets Emotional at Cortina Bib Draw Tribute 

Now Playing

Mikaela Shiffrin's Winning Run - Super G - Cortina - 2019 

Now Playing

LAAX Open Halfpipe Highlights 2019 

Now Playing

Chris Corning Wins LAAX Slopestyle World Cup - Event Highlights - LAAX Open 2019 

Now Playing

Morgan Schild Takes 5th - USANA FIS Freestyle World Cup - Lake Placid Moguls - 2019 

Now Playing

Jaelin Kauf Takes 4th - USANA FIS Freestyle World Cup - Lake Placid Moguls - 2019 

Now Playing

Casey Andringa Just Misses the Podium - USANA FIS Freestyle World Cup - Lake Placid Moguls - 2019 

Now Playing

Tess Johnson Podium Run - USANA FIS Freestyle World Cup - Lake Placid Moguls - 2019 

Now Playing

MSWorldSnowDay 

Now Playing

Bose "Drop In" with Brad Wilson - Utah 2019 World Champs Features 

Now Playing

Mikaela Shiffrin Wins Giant Slalom - Kronplatz - 2019 

Now Playing

Alex Hall Wins Slopestyle World Cup - Font Romeu 2019 

Now Playing

Jessie Diggins Podiums in Stage 1 - Tour de Ski 2019 

Now Playing

Mikaela Shiffrin Breaks Slalom Win Record - Run 2 - Semmering - 2018 

Now Playing

Lindsey Jacobellis Claims 30th World Cup Win - Cervinia Snowboardcross - 2018 

Now Playing

Lindsey Jacobellis Takes Second Straight Podium - Cervinia Snowboardcross - 2018 

Now Playing

Jake Vedder's First World Cup Podium - Cervinia Snowboardcross - 2018 

Now Playing

Mikaela Shiffrin's 50th World Cup Win - Slalom - Courchevel 2018 

Now Playing