===First stint with the Seattle Metropolitans===In the 1915–16 season, Holmes signed with the Seattle Metropolitans of the Pacific Coast Hockey Association (PCHA), although he was still under contract to the Blueshirts.
V naslednji sezoni so Blueshirtsi zgrešili končnico, saj so na 20 tekmah zbrali le 8 zmag, Holmes pa je sezono končal z 4.18 prejetih zadetkov na tekmo.