With some help from Dan Hayes at the North County Times (follow @NCTPadres on Twitter) the Padres/Mariners rivalry has a name for 2011:
THE BATTLE FOR THE VEDDER CUP
As most anyone who has enjoyed music over the past two decades know, Pearl Jam was one of the seminal bands of the 90's, beginning as part of the early 90's grunge movement out of Seattle. Pearl Jam today have evolved and grown from their early grunge beginnings, and remain the standard of rock music by which all subsequent bands are measured (ok, that last part might be a BIT of an editorial comment).
However, for non-Pearl Jam nerds, Eddie Vedder has roots in San Diego. It was in San Diego that Eddie Vedder formed Bad Radio and it was in San Diego that Eddie Vedder was approached by Jack Irons to write songs for a three song instrumental demo for a band in Seattle, then known as Mookie Blaylock. Eddie Vedder, as the story goes, went surfing with the songs in his head, and penned the Mamasan Trilogy (Alive, Once, Footsteps).
So there you have it. Padres vs Mariners. The Battle for the Vedder Cup.