Washington–Washington State men's basketball rivalry

[1] The teams have met 299 times, with Washington leading the series 188–111 as of 2024.

Bud Withers of The Seattle Times has questioned whether the in-state series can be legitimately called a "rivalry", since Washington and Washington State have never made the NCAA Tournament in the same season.

[2] However, despite lacking sustained success on the court, both schools count the other as their principal rival.

WSU's head coach, Kyle Smith, stated: “I don’t put [other series] in the same category – no offense to Idaho.

There’s nothing to gain on that one, let’s put it that way.”[3] Rankings are from the AP Poll.