 The Bombers compete for the I-94 Rivalry Cup with the Kalamazoo Growlers.The rivalry began in 2014 when the Growlers entered the Northwoods League, ending the Bombers reign as the only team in the league from Michigan.The Bombers and Growlers yearly series is tied 3-3, but the Bombers lead the all-time series 31 games to 21.