Qualified for his first major championship by earning medalist honors at the Surrey, England, sectional qualifier, carding 14-under 130 on the Old and New courses at Walton Heath Golf Club. Registered his first European Challenge Tour victory by three strokes in March of 2017 at the Barclays Kenya Open on the European Challenge Tour. The victory was extra special for Rai, whose mother was born in Kenya and she embraced her son on the 18th green. It was his mother's first visit to Kenya since 1970. Rai followed that up by defeating past Great Britain and Ireland Walker Cup competitor Gavin Moynihan in the final match of the Andalucia Costa Del Sol Match Play 9 in May. His first pro win came on the PGA EuroPro Tour in 2015 at the Glenfarcles Open.