A trio of former Bluejays returned to their old ballpark to help UNO pick up another win over its city rival.
Cam Frederick and Will Hanafan drove in runs and Jack Lombardi scored once as the Mavericks earned a 5-3 win over Creighton at Schwab Field.
UNO (22-24) also won the first meeting between the teams 5-3 on a March 8 night when temperatures were about 40 degrees colder than it was Tuesday.
"The guys did a good job of playing a complete game tonight, which we've been struggling to do last weekend," UNO coach Evan Porter said. "They came ready to play. All the credit goes to our players."
Harrison Kreiling made his second career start for the Mavs after outstanding start last Tuesday against Kansas.
Kreiling, who faced the minimum through six innings against the Jayhawks, struck out six Bluejays in his three innings.
UNO had runners at second and third with one out in the fourth, but CU (25-16) kept the game scoreless by throwing out Eddie Rosario at the plate. The Mavs, though, broke through in the fifth.
Lombardi doubled down the left-field line before Frederick followed with a single to left to score Lombardi. Both played at Creighton before transferring to UNO.
The Mavs added two more runs in the sixth when another former Bluejay, Hanafan, hit a drive to left center that was just out of the diving reach of left fielder Jared Wegner. Hanafan's single brought home Eddie Satisky from second, then Harrison Denk later scored on a wild pitch.
Satisky's RBI double to left made it 4-0 in the seventh before Creighton got on the board.
With two out in the bottom of the seventh, Andrew Meggs lined an RBI single. With two on, Joey Machado came on in relief and struck out Jared Wegner to end that threat.
Creighton, though, put together another two-out rally in the eighth. Nolan Clifford hit a two-run double to the base of the wall in left field to make it a one-run game.
But UNO answered in the ninth, when Noah Greise brought home Mike Boeve with a single up the middle. Boeve had two hits to extend his hitting streak to 22 games while Machado recorded the last seven outs for his fourth save.
The Mavs begins a crucial Summit League series against Oral Roberts on Friday night.
"We need to find a way to bring the energy we did tonight every game this weekend," Porter said.
Creighton will look to snap a five-game losing streak when it hosts Butler at 11 a.m. Friday,
UNO (22-24) ................. 000 012 101—5 11 1 At Creighton (25-16) ..... 000 000 12x—3 7 1
W: Gordon, 1-2. L: Lidd, 2-1. S: Machado, 4. 2B: UNO, Lombardi, Satisky. CU, Clifford.
A brief look at Creighton baseball since 2010
Final game: Loss to Xavier in the Big East tournament Record: 24-15
Notable facts: Season shortened due to COVID-19
Final game: Regular-season loss to Minnesota Record: 5-10
Notable facts: Season canceled due to COVID-19 pandemic
Final game: NCAA Corvallis Regional loss to Michigan Record: 41-13 MLB draft: Will Robertson (4th round, 117 overall, Toronto Blue Jays), Isaac Collins (9th round, 279 overall, Colorado Rockies), Jake Holton (10th round, 292 overall, Detroit Tigers), Mitch Ragan (15th round, 448 overall, New York Mets), Jack Strunc (25th round, 741 overall, Miami Marlins), Denson Hull (28th round, 842 overall, Arizona Diamondbacks)
Notable facts: First Creighton team to win Big East regular reason and tournament titles
Final game: Regular-season loss to California Record: 34-16
MLB draft: Michael Emodi (11th round, 332 overall, Kansas City Royals), Ryan Tapani (21st round, 641 overall, Washington Nationals), Jacob Voss (27th round, 811 overall, Los Angeles Angels), Clark Brinkman (32nd round, 945 overall, Detroit Tigers)
Final game: Loss to St. John's in Big East tournament Record: 24-25 MLB draft: Rollie Lacy (11th round, 345 overall, Chicago Cubs), David Gerber (29th round, 873 overall, Seattle Mariners)
Notable facts: Won Big East regular season title
Final game: Loss to Xavier in Big East tournament championship Record: 38-17 MLB draft: Nicky Lopez (5th round, 163 overall, Kansas City Royals), Danny Woodrow (12th round, 355 overall, Detroit Tigers), Nick Highberger (30th round, 892 overall, Oakland Athletics)
Notable facts: Big East tournament runner-up
Final game: Loss to St. John's in Big East tournament championship Record: 27-14
Notable facts: Big East tournament runner-up
Final game: Loss to Xavier in Big East tournament championship Record: 32-17-1 MLB draft: Jake Peter (7th round, 198 overall, Chicago White Sox), Mike Gerber (15th round, 460 overall, Detroit Tigers), Bryan Sova (25th round, 742 overall, Philadelphia Phillies)
Notable facts: First year in the Big East, won the Big East regular season title, runner-up in the Big East tournament
Final game: Missouri Valley Conference tournament loss to Wichita State Record: 30-18 MLB draft: Federico Castagnini (30th round, 909 overall, Baltimore Orioles)
Notable facts: Final season in the Missouri Valley Conference
Final game: NCAA Los Angeles Regional loss to UCLA Record: 28-30 MLB draft: Ty Blach (5th round, 178 overall, San Francisco Giants), Anthony Bemboom (22nd round, 687 overall, Los Angeles Angels)
Notable facts: Creighton finished last in the Big East regular season but won the Missouri Valley tournament to reach the NCAA tournament
Final game: NCAA Corvallis Regional loss to Georgia Record: 45-16 MLB draft: Jonas Dufek (9th round, 280 overall, Houston Astros), Trever Adams (16th round, 504 overall, Texas Rangers)
Notable facts: First Creighton team to win the Missouri Valley Conference's regular season and tournament title in the same season, moved to TD Ameritrade Park
Final game: Loss to Indiana State at Missouri Valley tournament Record: 27-25
MLB draft: Elliot Soto (15th round, 460 overall, Chicago Cubs), Carson Vitale (38th round, 1,156 overall, Texas Rangers)