Two baseball teams who cannot stand each other, plus the country's most crowded October marathon.
Wrigley Field
Cubs baseball April to October in a 1914 ballpark with ivy on the walls. Bleacher seats are the experience; the neighbourhood bars are the second half.
Soldier Field
Bears football September to January on the lakefront, in a stadium with a modern bowl dropped inside a colonnade. December games are genuinely cold.
United Center
Bulls basketball and Blackhawks hockey October to April on the near west side. Midweek tickets are the cheapest way into a big American arena.
Chicago Marathon
Run in October on a flat loop through the neighbourhoods, entered by lottery. Free to watch, and the crowds in Pilsen and Boystown are the highlight.