St. Ignatius got a shocking defeat at the hands of an electrified Archbishop Riordan High School Saturday, Washington

Riordan senior A.J. Lewis breaks away from a St. Ignatius tackler on Saturday at Archbishop Riordan High School.

High School thumped crosstown rival Lowell on Friday, and Marshall High School beat Lincoln to notch its first win since 2004.

Riordan 21, St. Ignatius 14

St. Ignatius College Preparatory’s 21-14 road loss to Riordan was not only a surprise for SI, notes San Fran Preps, it was the first win for the Crusaders this season and the first under new head coach Bryan Blake — an SI grad.

“I’m just so happy for our kids,” Blake said. “They work so hard all year long and everybody picks them to lose. They just don’t care. I’m just so proud of them and how they can have this feeling.”

That feeling of elation — enabled by standout performances from senior wide receiver and defensive back A.J. Lewis, plus junior quarterback Ismael Orozco — found its opposite on the other side of the field.

For St. Ignatius, the loss was more than discouraging. Riordan had lost its first four games by a combined 197-71 and the Wildcats won last year’s meeting 34-16. The Wildcats also outgained Riordan 260-139

“I can’t [describe how I feel],” said St. Ignatius head coach Steve Bluford. “It’s just not good. We have to play better defense, run the ball better, pass the ball better, block better and tackle better. We’re just not doing very well right now.”

Washington 41, Lowell 20

At Kezar Stadium Friday night, Lowell High School broke its scoreless streak of nearly three weeks with a run by senior Kensie Lee, but it wasn’t enough for the Cardinals to beat the Washington Eagles and their rushing triple threat of Jeremy Jetton, Lajarie Mabrey and Galen Hall, according to San Fran Preps.

Washington (4-1, 2-0) began the game on fire, returning the opening kickoff to the Lowell 30 yard-line and scored just five plays later on a 2-yard touchdown run from Jetton.

Although the touchdown was all that separated the two teams after one quarter, it was less than a minute into the second quarter that Hall found his way into the end zone to put Washington up 14-0.

On the ensuing drive, Lowell senior Kensie Lee’s 4-yard scamper with 7:11 remaining in the half capped a 65-yard drive and ended the Cardinals’ (0-4, 0-2) nearly three-week scoreless drought.

However, as was the case for the entire game, Washington responded promptly when Mabrey powered his way in from 4 yards out to give the Eagles a 21-6 lead with less than four minutes remaining in the half.

That Washington response eventually enabled the Eagles to win 41-20 over Academic Athletic Association rival Lowell.

Marshall 14, Lincoln 6

The Marshall High School Phoenix did something last weekend they haven’t done since 2004: win in varsity football. Running backs Malik Ngumezi and Travelle Johnson both scored a touchdown in Marshall’s win over Lincoln High School.

For Lincoln, the defeat seemed to be a reminder that they have their work cut out for them as they try to build to the level of the hard-charging Mustang teams of past years.

“They just played better than us,” said Lincoln head coach Phil Ferrigno. “We’re still trying to figure out who we are as a team. This isn’t the Lincoln teams of the past, but everyone wants to beat us.”

Photo: AJ Canaria/San Fran Preps