First amputee to win a summer x games gold medal

According to Official Guinness Records,

Riding a 2009 Suzuki RMZ450F, Chris Ridgway (USA) won gold in
the X Games adaptive Moto X class at X Games 15 in Los Angeles,
California, USA, on 31 July 2009.

For a complete list of 2009 records, please visit 2009 Guinness Records in United States.

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