Emerald Ridge stuns top-seeded Mount Si, rolls to 4A semis

Jaguars knock off No. 1 team, advance to face defending champion Gonzaga Prep

Published on Mar. 6, 2026

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The No. 7 Emerald Ridge Jaguars pulled off a major upset, defeating the top-seeded Mount Si Wildcats 67-62 in the 4A state tournament quarterfinals. Emerald Ridge led for most of the game, withstanding a late Mount Si rally to secure the victory and advance to the semifinals, where they will face the defending champion Gonzaga Prep Bullpups.

Why it matters

This win marks a historic achievement for the Emerald Ridge program, which had never won a state tournament game before Wednesday. The Jaguars' ability to knock off the tournament's No. 1 seed shows the team's growth and potential to make a deep postseason run.

The details

Emerald Ridge jumped out to a 36-31 halftime lead and maintained control for most of the game, despite foul trouble for 6-foot-7 forward Jamaize McGriff. The Jaguars' balanced scoring attack, led by Ellis Mosley's 19 points, helped offset a 23-point performance by Mount Si's Latt Ford. Emerald Ridge's guards, including Jordan Bennett and Mychal Turner, kept the pressure on and prevented Mount Si from fully rallying in the fourth quarter.

  • Emerald Ridge led 36-31 at halftime.
  • The game was played on Thursday, March 6, 2026.

The players

Emerald Ridge Jaguars

The No. 7 seed in the 4A state tournament, Emerald Ridge pulled off a major upset by defeating the top-seeded Mount Si Wildcats.

Mount Si Wildcats

The No. 1 seed in the 4A state tournament, Mount Si was stunned by the upstart Emerald Ridge Jaguars.

Jamaize McGriff

Emerald Ridge's 6-foot-7 forward, who dealt with foul trouble but whose team never skipped a beat in his absence.

Jordan Bennett

Emerald Ridge guard who scored 15 points in the upset victory.

Latt Ford

Mount Si's bouncy forward who scored a team-high 23 points in the losing effort.

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What they’re saying

“It's a huge win. Nobody believed in us coming into this and we just knocked off the No. 1 seed. That shows how much we've built as a program and built as a team.”

— Jordan Bennett, Guard (Yahoo Sports)

“We wanted to make sure that we were the first ones — we didn't want to react to them, we wanted to make sure we were the ones making them react to us. We didn't want to play on our heels, we wanted to make sure we were playing downhill. Our guys did a good job of that.”

— Pat Mullen, Emerald Ridge Head Coach (Yahoo Sports)

What’s next

Emerald Ridge will face No. 5 Gonzaga Prep, the defending state champion, in the semifinals on Thursday, March 6 at 7:15 PM.

The takeaway

Emerald Ridge's stunning upset of the tournament's No. 1 seed Mount Si demonstrates the Jaguars' growth as a program and their potential to make a deep postseason run, even as they face another tough challenge in the defending champion Gonzaga Prep Bulldogs.