hs3730 wrote:One area outside the northeast that would work: San Diego - LA.Chicago -- Milwaukee (MLB, NBA)
I can't think of any others, though.
Sacramento -- Oakland (NBA)
Seattle - Portland (MLS)
Buffalo - Toronto (NHL)
Buffalo - Cleveland (NFL) is doable (although perhaps not practical due to equipment needs)
In the possibly too long a ride category are:
Chicago - St Louis
Chicago - Detroit
Montreal -- Toronto (NHL) -- tons of fans do this route however
Miami - Orlando (Amtrak is too slow but coming soon on Brightline)
Brightline aside, host railroads would probably be grumpy about special trains on any (all) of these routes.