Marshfield’s Class 4A semifinal football game against Ontario is scheduled for 2:15 p.m. Saturday at Hillsboro Stadium.

The Pirates and Tigers are battling for a spot in the state championship game against either Cottage Grove or Mazama. Those teams meet at 4 p.m. Saturday at Grants Pass High School.

Marshfield and Ontario will be the middle game of a tripleheader at Hillsboro.

The first game is a Class 3A semifinals between Rainier and Santiam Christian at 11 a.m. The nightcap is a Class 5A semifinal between Hermiston and Wilsonville at 5:30 p.m.

Admission for the entire tripleheader is $8 for adults and $5 for students.

The Oregon School Activities Association puts all semifinal games at neutral sites and is using five different high schools on Saturday.

In addition to Cottage Grove and Mazama, Grants Pass also will host a Class 1A semifinal between Hosanna Christian and Triad at noon.

Liberty High School in Hillsboro hosts the other Class 1A semifinal, between Falls City and Dufur at noon, as well as the Class 5A semifinal between Churchill and Mountain View at 5 p.m.

Cottage Grove High School will host a Class 3A semifinal between Scio and Cascade Christian at noon and a Class 2A semifinal between St. Paul and Santiam at 4 p.m.

The other Class 2A semifinal, between Knappa and Monroe, is at 2 p.m. Saturday at Central High School in Independence.

Marshfield has reached the semifinals with a pair of home wins, beating Estacada 58-14 and La Grande 24-21.

Ontario edged Banks at home 41-40 and then won at Scappoose 53-39 in the quarterfinals.

While Marshfield is undefeated, Ontario has an 8-2 record that includes a loss to Weiser, Idaho, and a 43-38 loss to La Grande. The Tigers avenged the loss to La Grande with a 35-7 win in the second matchup, though La Grande was without quarterback Andrew Peasley for that contest.

Ontario has won six straight games overall.

Marshfield is in the semifinals for the first time since 1999 and trying to advance to its first championship game since 1994. The Pirates won their most recent state title in 1992, when current head coach John Lemmons was one of the team’s top players.