His first-round men's singles match was postponed Sunday afternoon due to rain.
Raonic, the world No. 25 from Thornhill, Ont., was scheduled to play 69th-ranked Tatsuma Ito of Japan.
Only a handful of first-round matches started Sunday before wet weather rolled in at the All England Club. When play continued, Spain's David Ferrer defeated Vasek Pospisil of Vancouver 6-4, 6-4.
Aleksandra Wozniak of Laval, Que., had her first-round singles match against Marina Erakovic of New Zealand postponed, along with Pospisil's first-round doubles match alongside Toronto's Daniel Nestor.
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