Oscar Tshiebwe’s first nine games of the 2025-26 season were defined by a desperate, often clumsy struggle to translate his rebounding dominance into a viable NBA role. During a brutal stretch of brief bench cameos, his limitations were glaringly obvious. On 02/20 vs MEM, he logged 14 minutes but managed just 2 points and 6 rebounds, resulting in a dismal -11.3 Impact score as a lack of offensive gravity bogged his unit down. He briefly flipped the script on 03/02 vs DEN, turning 18 minutes of aggressive interior play into 8 points and 8 rebounds. That relentless effort on the glass and efficient 4-for-5 shooting earned him a +5.8 Impact score, highlighting the value he creates when he simply sticks to doing the dirty work around the rim. However, a surprise promotion to the starting lineup on 03/07 vs MIL immediately exposed his ceiling. Despite a respectable 6 points and 5 rebounds in just 12 minutes, he posted a -7.2 Impact score because he was hopelessly outmatched by starting-caliber athletes on the defensive end.

Oscar Tshiebwe’s mid-March stretch was defined by sheer, chaotic physicality off the bench. He operated as a pure energy big. During the 03/15 vs SAC matchup, he scored a modest 9 points but still posted a stellar +11.9 Impact score. That massive positive rating stemmed entirely from his non-scoring value, as he vacuumed up 8 rebounds and exhausted Sacramento's frontcourt with his relentless motor. Conversely, his value plummeted when opponents successfully kept him off the glass. This glaring flaw surfaced on 03/11 vs NYK, where he grabbed just a single rebound in 15 minutes and suffered a brutal -13.4 Impact score. He found his offensive rhythm later on 03/23 vs TOR, bullying his way to 16 points and 7 rebounds in 28 minutes. That performance yielded a +9.3 Impact, highlighting exactly how destructive the bruising center can be when given a longer runway.