While East Union’s longtime reign in the Valley Oak League is likely to come to an end, Oakdale is poised to start a dynasty-like stretch of its own.

On Thursday, Oakdale waxed the nine-time defending champion Lancers 219-280 on Manteca Park Golf Course’s par-37 front nine. East Union is rebuilding after losing its top players to graduation, namely three-time CIF State Championships qualifier Brooke Riley, who is currently competing for a spot in the starting rotation for high-ranking Northwestern in the NCAA circuit.

Oakdale, now 4-0, was paced by co-medalists Makayla Christensen and Taylor Stuart with 41s. The Mustangs have a stacked lineup of freshmen and sophomores. Their highest scorer Thursday was Andrea York (47), and she outscored every East Union player.

“They’re pretty solid,” East Union coach Dennis Wells said. “They don’t have any super stars but a good solid group of girls. We have to work hard to be able to beat them, because they’ll be solid for the next three or four years.”

East Union (3-2) was headed by Natalie Cowan and Kendra Campbell, each finishing with a 48. Haley Leonard (56), Presley Graham (58) and Sierra Wilkerson (70) made up the rest of the team’s score.

Kimball 272,

Manteca 279

TRACY — The Buffaloes (2-2) continued to shave strokes, but it wasn’t enough to come away with the win at Tracy Country Club. Medalist Sophie Whaite led Kimball with a 46.

Scoring for Manteca were Sierra Martinez (51), Taylor Reed (53), Kylee Eberle (57), Haighley Kissee (57) and Bella Gonzales (61).

Sierra 243,

Lathrop 316

RIPON — Legacy Barnes carded a 7-over-38 at Jack Tone Golf Course, as the Timberwolves improved to 2-3.

Bryanna Gavino (42), Kaitlyn Looney (50), Hailee Looney (56) and Aubrey White (57) followed suit. Abigail Lee (59), Kaitlyn Edrington (62), Chloe Malicoat (64), Eghosa Ogbeide (65) and Parmeet Toger (66) scored for Lathrop.