The soccer postseason opens tonight for both the Plymouth boys and girls teams.

The Rockies girls squad will host 3A Sectional 4 in tonight’s only quarterfinal of the five-team field. Plymouth (2-13-1) will match up with Elkhart (5-8-3) in a 6 p.m. sectional opener.

The winner will play in the Thursday semifinal against Concord, who received the bye.

In the other half of the bracket, 19th-ranked (3A) Goshen will play #16 (3A) Northridge in the sectional’s other semifinal.

The championship is scheduled for 7 p.m. Saturday.

Meanwhile, the Plymouth boys will have to avenge a regular season loss to advance. The Rockies are at the 3A sectional site hosted by 15th-ranked Goshen. At 7 p.m., Plymouth (6-9-1) will play seventh-ranked Northridge in the final quarterfinal.

Northridge (13-1-2) defeated Plymouth on September 23, 6-1.

The winner of the Plymouth – Northridge quarterfinal will play the winner of the 5 p.m. quarterfinal, East Noble – Elkhart.

On Monday, Concord shut out Mishawaka 9-0 to advance to a Wednesday semifinal with Goshen.

The championship is scheduled for 2 p.m Saturday.