For the 2025 girls basketball postseason, Arrowhead Girls Basketball was named the #1 seed in Sectional #3.
On February 28th, the Warhawks played #16 Janesville Craig at Arrowhead for the first game of regionals and won 77 to 31. The leading scorer for the Warhawks was Natalie Kussow, junior, who had 24 points, and the second leading scorer was Sidney Zehner, sophomore, who had 12 points. Kussow also led the team in rebounds with 10, and Presly Samz, junior, led the team in assists with 9.
On March 1st, the Warhawks played #8 Mukwonago at Arrowhead to win the regional championship 82 to 52. The leading scorer for the Warhawks was Kussow, who scored 43 points, which tied Jenny Smith (2012) for the second most points scored in a game in Arrowhead girls basketball history. Teresa Kescenovitz was the second leading scorer with 13 points. Kussow also led the team in rebounds with 14 and tied Samz for the most assists in the game, each with 5.

On March 6th, the Warhawks played #4 Verona at Mukwonago High School for the first game of sectionals and won 83-58. The leading scorer for the Warhawks was Kussow, who scored 28 points, and the second leading scorer was Karina Klemz, sophomore, who scored 14 points. Kescenovitz and Zehner each had 13 points to be the thirdleading scorers. Kussow had the most rebounds for the Warhawks with 14, and Zehner had the most assists with 6.
On March 8th, the Warhawks played #2 Waunakee at Oregon High School for the sectional championship and won 72-69 in overtime. The leading scorer for the Warhawks was Kussow with 31 points, the second leading scorer was Zehner with 14, and the third leading scorer was Klemz with 12. Kussow had the most rebounds with 13, and Zehner had the most assists with 5.

#2 Arrowhead played #3 Muskego in the WIAA State Semifinals on March 14th at the Resch Center in Green Bay, WI. Muskego won the game 56-44 and later lost to Kimberly 47-26 to become the state runner-up for Division 1. For the Warhawks, Kussow had the most points, with 16, and Zehner was the second leading scorer, with 11. Kussow, Klemz, and Zehner each had 6 rebounds, and Samz and Zehner each had 4 assists.