The Indiana Pacers walloped the Oklahoma City Thunder on Thursday, setting up a Game 7 for all the marbles on Sunday. The game will be in OKC, where the Thunder are 10-2 this postseason and are a 7.5-point favorite to win the deciding game.

Yahoo Sports is winding back the clock to unravel the story behind the unlikely June showdown between the Thunder and Pacers: two small market, rebuild darlings duking it out for first-time NBA supremacy.

When the Pacers and Thunder play Sunday, it will be the 20th Game 7 in NBA Finals history. Take a look at how the other 19 played out.