Kallie Zuidema set a school record in 1-meter diving for Sterling in a 93-82 loss to Ottawa on Wednesday at the Duis Center.
Zuidema amassed 186.55 points, eclipsing the previous mark of 186.15 set by Chris Metzler in 1981.
Kerry Mullen had a pair of wins for Sterling, in the 100 butterfly (1 minute, 6.3 seconds) and the 200 freestyle (2:10.57).
Michaela Busch won the 50 freestyle (26.13), while the 400 freestyle team of Katrina Sandefer, Avery Edwards, Busch and Mullen won in 4:17.10.
Oregon 162, Stillman Valley 212: Carson Buck's even-par 36 led the Hawks past the Cardinals at Silver Ridge.
Also for Oregon, Matt Myers had 41, Taylor Brubaker had 42, and Mitchell Nehrkorn added 43.
Rock Falls 167, Fulton 168: Aaron Frank of Rock Falls and Fulton's Lucas Wiebenga shared medalist honors with 3-over-par 39s as the Rockets edged the Steamers at Fulton Country Club.
Cooper Kilberg and Nolan Moeller had 42s for Rock Falls, and Mitchell Guzzle and Matt Long added 44s.
Amboy 174, Hinckley-Big Rock 216: Griffin Kozeal's 5-over-par 40 led the Clippers past the Royals at Shady Oaks.
Rounding out the Amboy lineup were Jake Lucas with 42, Tracer Mills with 45, and Logan Thake with 47.
Prophetstown 178, ROWVA 212: Jaden Taylor's 7-over-par 43 led the Prophets past the Tigers at Oak Run in Dahinda.
Grant Ames and Jackson Ames each had 44s for Prophetstown, and Jackson Westen added a 47.
Mustangs place second: Morrison (175) finished ahead of Annawan-Wethersfield (205) and behind Ridgewood (174) in a triangular at Kewanee Dunes.
Polo 200, Aquin 227: Brix Clayton's 11-over-par 47 led the Marcos past the Bulldogs at Park Hills West in Freeport.
Tristin Woodin was next for Polo with a 48.
Oregon 208, Stillman Valley 221: Abi Scheidecker carded a 47 to lead the Hawks past the Cardinals at Silver Ridge.
Ali Scheidecker and Abby Martin each had 52, while Haley Repass added a 57 for Oregon.
Cardinals win triangular: Morgan Newton's 10-over-par 46 led the Cardinals (202) to wins against Princeton (205) and Rock Falls (265) at Lake Erie Country Club.
Also for Erie, Katlyn Weber had 48, Sera Bebon had 49, and Madison Newton added 59.
Nicole Arduini was low for Rock Falls with 64.
Prophetstown 232, ROWVA 238: Taylor Kelley was the medalist with a 14-over-par 49 as the Prophets topped the Tigers at Oak Run in Dahinda.
Also for Prophetstown, Hannah Kolling had 54, Rachael Driscoll had 64, and Jasmine Haggard added 65.
Warriors finish third: Rachel Spencer had a 57 for Sterling (261) in a three-team match at Highland Springs in Milan. Alleman (205) edged Rockridge (205) via a fifth-score tiebreaker.
Bureau Valley def. Annawan 25-23, 25-23: Val Reuter had four kills and two aces as the Storm took a close match from the Braves in Manlius.
Sydney Lebahn, Heaven Bennett and Carlie Bickett each added three kills for Bureau Valley.
Dixon splits at Earlville: The Dukes defeated Earville 3-0 at the season-opening Earlville Tournament, but dropped their second game of the day 2-1 against Roanoke-Benson.
Anthony Deseno, Connor Carlson, and Remington LeRette scored goals against Earlville, as the Dukes led 1-0 at halftime. Jacob Fane and Christian Hicks dished assists.
Carlson scored the Dukes' lone goal against Roanoke-Benson, assisted by Deseno. Dixon (1-1) trailed 2-0 at halftime in that game.
Nick LeSage played goalie in both games for the Dukes, making three saves against Earlville and five saves against Roanoke-Benson.
Yorkville 3, Sterling 1: Tony Diaz scored for the Golden Warriors, with an assist from Miguel Gallardo, in a loss to the Foxes at the Barbs Cup in DeKalb.
Kallie Zuidema, Sterling swimming, set school record in diving
Carson Buck, Oregon golf, even-par 36
Griffin Kozeal, Amboy golf, 3-over-par 40