1989–90 Kansas Jayhawks men's basketball team
The 1989–90 Kansas Jayhawks men's basketball team represented the University of Kansas in the 1989–90 NCAA Division I men's basketball season, which was the Jayhawks' 92nd basketball season. The head coach was Roy Williams, who served his 2nd year at KU. The team played its home games in Allen Fieldhouse in Lawrence, Kansas. The team set an NCAA record for largest unranked to ranked jump. Following the preseason NIT, where the Jayhawks defeated the 2nd, 1st, and 25th ranked teams in the nation, the Jayhawks jumped to the 4th ranked team in the nation. They remained in the top two for the remainder of the regular season. The season also marked the beginning of an NCAA-record 32 consecutive NCAA tournament appearances that as of the 2023 tournament (there was no tournament in 2020 due to the COVID-19 pandemic) is still active. The Jayhawks 150–95 victory over Kentucky on December 9, remains the most points scored in a game in Kansas basketball history and the worst defeat in Kentucky's history.
| 1989–90 Kansas Jayhawks men's basketball | |
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Preseason NIT Champions | |
NCAA men's Division I tournament, second round | |
| Conference | Big Eight Conference |
| Ranking | |
| Coaches | No. 5 |
| AP | No. 5 |
| Record | 30–5 (11–3 Big Eight) |
| Head coach |
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| Assistant coaches |
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| Captains |
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| Home arena | Allen Fieldhouse |
| Conf | Overall | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Team | W | L | PCT | W | L | PCT | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| No. 11 Missouri | 12 | – | 2 | .857 | 26 | – | 6 | .813 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| No. 1 Oklahoma † | 11 | – | 3 | .786 | 27 | – | 5 | .844 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| No. 5 Kansas | 11 | – | 3 | .786 | 30 | – | 5 | .857 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Kansas State | 7 | – | 7 | .500 | 17 | – | 15 | .531 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Oklahoma State | 6 | – | 8 | .429 | 17 | – | 14 | .548 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Iowa State | 4 | – | 10 | .286 | 10 | – | 18 | .357 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Nebraska | 3 | – | 11 | .214 | 10 | – | 18 | .357 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Colorado | 2 | – | 12 | .143 | 12 | – | 18 | .400 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| † 1990 Big Eight tournament winner As of March 3, 2012 Rankings from AP poll | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||