The next two weeks will bring challenges like no other for INDYCAR drivers.

Two new street circuits. Back-to-back weeks of unknowns.

First up this weekend: A race on the streets of Markham, a suburb of Toronto. It’s a 2.19-mile, 12-turn course on streets that have mostly been repaved.

Then next weekend: A race on the streets of Washington, D.C., around the National Mall. The relatively simple 1.7-mile, seven-turn course will go by some of the most iconic institutions in the nation’s Capitol as part of a celebration of the 250th birthday of the United States of America.

Here’s everything to know about how drivers will handle the next couple of…

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