The 2017 Seattle Sounders FC 2 season was the club's third year of existence, and their third season in the United Soccer League, the second tier of the United States Soccer Pyramid. Including previous Seattle Sounders franchises, it was the 37th season of a soccer team playing in the Seattle metro area.
Roster
Competitions
USL regular season
Standings
Results summary
Results by matchday
Matches
Statistics
Appearances and goals
Numbers after plus-sign(+) denote appearances as a substitute.
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|colspan="14"|Players who left the club during the season:
Top scorers
{ | class="wikitable" style="font-size: 95%; text-align: center;" |- !width=30|Place !width=30|Position !width=30|Number !width=175|Name !width=75| !width=75| !width=75|Total |- |rowspan="1"|1 |MF |32 |align="left"| Zach Mathers |11 |0 |11 |- |rowspan="1"|2 |MF |38 |align="left"| Irvin Parra |6 |0 |6 |- |rowspan="1"|3 |FW |99 |align="left"| Felix Chenkam |5 |0 |5 |- |rowspan="1"|4 |FW |71 |align="left"| David Olsen |4 |0 |4 |- |rowspan="1"|5 |DF |34 |align="left"| Brian Nana-Sinkam |3 |0 |3 |- |rowspan="3"|6 |MF |23 |align="left"| Henry Wingo |2 |0 |2 |-