Cascadia Cup: 2017 schedule, standings and all-time winners list

The Seattle Sounders finished their Cascadia Cup series on top of the pack, but they're not yet guaranteed to take back the regional title.

Following a 3-0 home win over the Vancouver Whitecaps last month in the penultimate game of the 2017 series, the Sounders' slate is done and they sit atop the standings by a point.

But there's one game left to play, between Vancouver and the Portland Timbers on Decision Day presented by AT&T, and it will determine if the Sounders or Timbers will reclaim the Cascadia Cup from the Whitecaps. If the Timbers win or draw that last game, they'll take the Cascadia Cup, so this year's edition will go down to the wire.

Created by the supporters of the Sounders, Whitecaps and Portland Timbers, the Cascadia Cup has been around since 2004. It was contested by all three teams in USL until 2009, when the Sounders made their MLS debut. The Whitecaps and Timbers continued battling for the Cup in the lower divisions until 2011, when both moved up into MLS, allowing the Sounders to get back in on the competition.

Following last year's crown, Vancouver have won six Cascadia Cups, two more than Seattle and three more than Portland. Vancouver have won the Cup three times during the trophys MLS era, followed by Seattle's two and the Timbers' lone win of their MLS existence in 2012.

The teams will meet a total of nine times this year, with each club playing the others three times during the MLS regular season.

The full 2017 Cascadia Cup schedule and standings and all-time winners list can be found below:

Friday, April 14  Vancouver 2, Seattle 1 Saturday, April 22 — Portland 2, Vancouver 1 Saturday, May 27 — Seattle 1, Portland 0 Sunday, June 25 — Portland 2, Seattle 2 Sunday, July 23 — Vancouver 1, Portland 2 Wednesday, Aug. 23 — Vancouver 1, Seattle 1 Sunday, Aug. 27 — Seattle 1, Portland 1 Wednesday, Sept. 27 — Seattle 3, Vancouver 0 Sunday, Oct. 22 — Vancouver at Portland (4 pm ET, TSN)

2016  Vancouver Whitecaps 2015 – Seattle Sounders 2014 – Vancouver Whitecaps 2013 – Vancouver Whitecaps 2012 – Portland Timbers 2011 – Seattle Sounders 2010 – Portland Timbers 2009 – Portland Timbers 2008 – Vancouver Whitecaps 2007 – Seattle Sounders 2006 – Seattle Sounders 2005 – Vancouver Whitecaps 2004 – Vancouver Whitecaps