2022-23 (Illinois State)

Played in 31 games during the year with 13 starts, averaging 26.8 minutes per game. He scored 211 points for an average of 6.8 per game, hitting on 40.1 percent of his field goal tries (67-of-167), 35.8 percent of three-pointers (39-of-109), and 77.6 percent of his free throws (38-of-49). He pulled down 77 rebounds (2.5 per game) while dishing out 50 assists against 49 turnovers with 24 steals. Scored in double-figures nine times during the season, including in each of the first two games of his Redbird career with 10 points at home against Western Illinois on November 7 which he followed with a career-high 16 points on the road at Eastern Illinois on November 10. He scored 15 points at Northern Iowa on January 18, and scored 14 points twice: against Chicago State on December 19 and against UIC on February 1. He pulled down a career-high eight rebounds on January 25 at Bradley, and dished out a career-high six assists on the road at Northwestern State on November 12. Scored 13 points on December 4 against Belmont and on January 25 at Bradley. 

2021-22 (Kansas State)

Played in 30 games off the bench, averaging 12.2 minutes per game. He scored 57 points while dishing out 14 assists and pulling down 32 rebounds, while also grabbing 10 steals. He scored a season-high eight points at Wichita State and added seven points at Ole Miss on January 29 where he also grabbed a season-high five rebounds. His three assists against North Dakota were the most in the season for Kasubke, and he had two steals in three different games.

2020-21 (Kansas State)

A year earlier Kasubke played in 16 games – all in Big 12 play – after he missed the first 13 games of the season with an injury. He scored 35 points over 16 minutes of action per game, while pulling down 20 rebounds and grabbing six steals. He scored a season-high eight points, four rebounds, and two steals against eventual NCAA Division I Champion Baylor on January 27 and scored at least five points four times and double-digit rebounds five times. He gave out three assists against Texas State on February 6. He was named to the Fall 2020 Big 12 Commissioner's Honor Roll, and the 2021 Academic All-Big 12 Rookie Team.

HIGH SCHOOL

As a prep at Chaminade High School he was a top-200 prospect by several recruiting services and was rated among the top 40 shooting guards in the country including No. 31 by Rivals.com and No. 37 by 247Sports.com. He was rated as the No. 6 prospect in the state of Missouri by 247Sports.com. He lettered all four years at Chaminade and led the team to three trips to the MSHSAA Final Four and an 84-30 overall record during his four seasons. His senior year, the Red Devils had a 22-6 overall record and advanced to the MSHSAA Semifinals before the tournament was canceled because of the COVID-19 pandemic. Chaminade was voted as Co-No. 1 team in the state by the Missouri Basketball Coaches Association. Kasubke was twice named to the Class 5A All-State team by the Missouri Basketball Coaches Association and was named to the First Team Metro Catholic Conference and to the all-district team, while he was a member of the St. Louis Post-Dispatch's All-Metro Third Team during his junior season. He scored 1,466 points over his four seasons, which ranks sixth in Chaminade High School history, behind NBA standouts Jayson Tatum and Bradley Beal, and former NBA player David Lee. His 218 career three-pointers are second-most in school history behind Beal's 256, and his 150 steals (9th) and 227 assists (10th) rank in the top-10 in his program's history. His 22.3 points per game during his junior season ranked 10th in the St. Louis area, and he led the team in nearly every offensive category including points, field goals made, three-point baskets made, and free throws made, and averaged 4.4 rebounds, 2.8 assists, 2.0 steals, and 0.6 blocked shots per game.