USA TODAY Sports

Ernie Banks broke barriers throughout 19 season as a Chicago Cub. He finished his career as MLB's leader for home runs as a shortstop. He unfortunately holds the record for most games played without making the postseason. Most importantly, he broke the color barrier at Wrigley Field, the first black ballplayer to ever play for the Cubs.

But on Sept. 19, 1955, Ernie Banks broke the record for most grand slams in a single season with five. Today the record is notched at six, shared between Don Mattingly and Travis Hafner, who beat and tied the record in 1987 and 2006 respectively.

Since 1955 three other players have hit five grand slams in a season, their names: Albert Pujols (2009), Richie Sexson (2006) and Jim Gentile (1961).

But in 1955 the record was a deadlock at four. Ray Boone, Vince — brother of Joe Dimaggio, Lou Gehrig, Sid Gordon, Tommy Heinrich, Ralph Kiner, Al Rosen, Babe Ruth, Frank Schulte and Rudy York all laid claim to the record, and as of the morning of Sept. 19, 1955 so too did Banks.

In front of less than 5,000 people at Sportsman's Park in St. Louis, Banks sent a seventh inning pitch from Lindy McDaniel deep over the left-field fence for a 5-0 Cubs lead, shattering the 11-way tie for his fifth grand slam of 1955 and his 44th home run of the season.

But in classic Cubs fashion, that all came crumbling down as starter Paul Minner allowed five unanswered runs in the eighth and ninth before reliever Jim Davis gave up to the Cardinals a walk-off home run in the bottom of the thirteenth.

More must-reads:

TODAY'S BEST
Dodgers starter undergoes season-ending UCL surgery
Knicks star ruled out for potential closeout game
Veteran NFL safety will either play for this team or retire in 2024
Former Red Wings head coach linked to open NHL job
How Patriots' Drake Maye has already impressed Jacoby Brissett
LeBron James, Giannis Antetokounmpo, Stephen Curry among Forbes' highest-paid athletes for 2024
Steve Cohen addresses if Mets could again be trade-deadline sellers
Tiger Woods ruins strong first round with sloppy finish at PGA Championship
Xander Schauffele makes history in first round of PGA Championship
NFL responds to speculation about Chiefs schedule and Taylor Swift
Despite hopes for change, NASCAR championship weekend will return to Phoenix in 2025
Chiefs will achieve something not done since 1927 with 2024 schedule
Caitlin Clark's debut was most-watched WNBA game in more than 20 years
Yankees' Aaron Judge comments on resurgence after bad slump
Odell Beckham Jr. reveals why he was 'hesitant' to join Dolphins
Lakers reportedly interested in adding three-time All-Star via trade
Luka Doncic fed off negative reactions in Game 5 win over Thunder
Celtics finally put away undermanned Cavaliers, advance to conference finals
Avalanche force Game 6 with big third period vs. Stars
MLB announces punishment for Astros' Ronel Blanco over foreign substance

Want more sports news?

Join the hundreds of thousands of fans who start their day with Yardbarker's Morning Bark, the best newsletter in sports.