[Mick]

"nemesis: the inescapable agent of someone's or something's downfall" (Oxford Languages)

Cal is by no means Stanford's nemesis by that definition! Vice versa, surely.

Seems about right that Mike Leach and the Cougs would be our/Shaw's nemesis. The rest of Mick's submissions are delightfully on point, IMHO, though I'd say C.al qualifies more as "annoying little brother who occasionally rises up to seriously provoke."

Fixed it:

Arch-enemy --> U$C
Arch-rival--> UDFG
Enemy--> Arizona State
Rival/whipping boy--> UCLA
Foe--> Colorado
Adversary --> Washington
Nemesis --> Washington State
Cal's nemesis --> Stanford
Opponent-->Oregon State
Antagonist --> Oregon
Combatant --> Arizona
Challenger--> Utah
Annoying little brother who occasionally rises up to seriously provoke --> Cal

[Mick]

"nemesis: the inescapable agent of someone's or something's downfall" (Oxford Languages)

Cal is by no means Stanford's nemesis by that definition! Vice versa, surely.

Seems about right that Mike Leach and the Cougs would be our/Shaw's nemesis. The rest of Mick's submissions are delightfully on point, IMHO, though I'd say C.al qualifies more as "annoying little brother who occasionally rises up to seriously provoke."

Fixed it:

Arch-enemy --> U$C
Arch-rival--> UDFG
Enemy--> Arizona State
Rival/whipping boy--> UCLA
Foe--> Colorado
Adversary --> Washington
Nemesis --> Washington State
Cal's nemesis --> Stanford
Opponent-->Oregon State
Antagonist --> Oregon
Combatant --> Arizona
Challenger--> Utah
Annoying little brother who occasionally rises up to seriously provoke --> Cal