A pair of three-pointers by junior Payton Beeler helped stake the Lady Owls to a four-point halftime lead, which they extended during an 18-13 third quarter -- as Heying, senior Stephanie Markes and sophomore Molly Evans each made a pair of baskets.
The Lady Hornets tried to make a run during the final frame, with senior Stephanie Hughes and freshman NaShayla Brandt combining for 10 points, but Marshall held them off -- despite missing 13 of 18 free throws.
Freshman Sloane Totta topped Fulton (1-4, 0-1 NCMC) with 16 points.
The Lady Owls collected 35 rebounds -- 12 by Markes, who also had three steals and two blocked shots -- and held a 23-2 edge in scoring off the bench, with Evans and sophomore Brianna Bellamy scoring nine points apiece.
Marshall (3-2, 1-1) will play its third straight NCMC home game Monday when it hosts Boonville.
LONE JACK -- Top-seeded Wellington-Napoleon got a scare from the Sweet Springs boys Thursday in the semifinal round of the I-70 Conference Tournament at Lone Jack.
The Tigers found themselves trailing by four points with four minutes to go in the game, but spurred by sophomore Levi Banner's eight fourth-quarter points walked away with a 50-46 decision.
Wellington led at the end of each period, but a pair of three-pointers from junior Jeffery Hall pushed the Greyhounds ahead during the final frame.
Senior Christian Bryant had a game-high 19 points for the Tigers (2-1), who play for the championship Saturday against St. Paul -- a 47-44 winner over Concordia.
Sweet Springs got 16 points each from Hall and junior Jacob Schowengerdt. The 'Hounds (3-1) take on Concordia for third place Saturday.
LONE JACK -- Santa Fe came back from a five-point halftime deficit to pull out a 51-47 win over Lone Jack in the I-70 Tournament consolation semifinals Thursday.
Freshman Joey Brandon tallied nine of his game-high 15 points during a 20-14 second period for the Mules (0-4), who led by one point going into the fourth stanza -- but were held to three field goals and missed their only free throw down the stretch.
The Chiefs made six of eight from the charity stripe with the game on the line.
Junior Keaton Graf had 13 points off the bench for Santa Fe, which plays Crest Ridge -- a 74-40 winner over Orrick -- for the consolation trophy today.