His squad will try to build on that momentum Saturday as the series continues with Chicago's Yu Darvish (0-0, 10.38 ERA) and Milwaukee's Zach Davies (0-1, 9.53) taking the hill for their second outings of the season.
But if the Pirates are going to get off on the right foot in Chicago this season, they will need more solid pitching efforts like the one they got from their ace on Sunday.
The Cubs enter Monday's home opener having won three of their past four games after Sunday's 3-0 victory over the Milwaukee Brewers. There is an off day in the series on Tuesday, so the game could be pushed back a day. Ian Happ broke a 2-2 tie with a 2 RBI single.
New Cubs closer Brandon Morrow, who pitched for the Los Angeles Dodgers previous year and the San Diego Padres before that, appeared to enjoy the snow, but he seemed as glad as anyone the Cubs will try it in better weather the rest of the week.
He said he might be a little lucky in Milwaukee. It was Milwaukee's third loss in its last four games.
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In March, 37,393 immigrants were caught along the Southwest border, the highest monthly total since December 2016. But Mexico has given many participants transit or humanitarian visas which could allow some to reach the border.
"Half of the crowd, was here, more than half", said Cubs catcher Willson Contreras of the majority of the fans cheering for his team over the Brewers the past four days at Miller Park. He surrendered five runs in 5 1/3 innings in his last start against the Minnesota Twins when he struck out three and walked one. The good news is that he has already registered 11 strikeouts and he'll face a Cubs lineup that is full of strikeout potential.
At first, the Cubs postponed their game by one hour to 2:20 p.m.
Quintana (1-1) struck out six and walked two while lowering his ERA in five starts against Milwaukee from 0.90 to 0.77.
"On the way out I had no idea if I was going to Cub Convention or Opening Day", Maddon said.
Rizzo (back) may remain out of the lineup Monday against the Pirates, Mark Gonzales of the Chicago Tribune reports. The Brewers will be without their own star in Christian Yelich, who probably won't return from his oblique injury until Monday.