Chigaya Mase (間瀬ちがや, Mase Chigaya, born December 5, 1967) is a Japanese ski mountaineer and ultramarathon runner. She lives in Tokyo.
2007:
2nd, Asian Championship, Tsugaike Kōgen Ski Resort, Nagano, Japan
2009:
1st, Asian Championship, relay (mixed teams of 1 woman & 3 men), Beidahu, Jilin, China
2nd, Asian Championship, individual
2nd, Asian Championship, vertical race
2010:
10th, World Championship, relay, together with Itō Mayumi and Horibe Michiko
1st, Asia Cup
1st, Gangwon Provincial Governor's Cup, Yongpyong Ski Resort/Balwangsan
1st, Tsugaike (Japan championship & Asia Cup 2nd race), individual, Nagano Prefecture
2011:
10th, World Championship, relay, together with Catrin Thomas and Horibe Michiko
