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Andrew Otelsberg, center with wig, Sarah Sisk, second from right, Katie Phillips, right, and the rest of the North Carolina State Pep Band cheer for their Wolfpack during the second half of a first round of the Men’s NCAA Tournament Friday, March 17, 2023, against the Creighton Bluejays at Ball Arena in Denver. (The Denver Gazette, Christian Murdock)

Crowds came out to Auraria and other neighborhoods surrounding Ball Arena for March Madness and St. Patrick's Day, keeping the area buzzing throughout Friday.

Across the street from Ball, seas of fans in red NC State gear carefully wove their way through the green-wearing Baylor fans and St. Patrick's Day revelers.

The games will bring in an estimated $4 to $8 million in revenue for Denver, according to the Denver Sports Commission, CBS Colorado reported.

"It's been awesome, a lot of new people coming in who we hadn't seen before this year... We have three levels in this bar and we will be packed to the brim," Dahlas Babnick, bar manager of Pour House on Market, said. 

PHOTOS: NCAA March Madness - First Round

Highlights from the regionals tournament in Denver.