Chicago CubsOpen full analysisVSSeattle MarinersOpen full analysis

Chicago Cubs defeated Seattle Mariners 7–1 on March 21 at Peoria Stadium in a spring training matchup that saw the visitors dominate pitching and run production. The Cubs' pitching staff was particularly effective, allowing just five hits and zero earned runs while striking out 11 Mariners batters across the game. Chicago's offense generated 15 hits and drove in seven runs, with one home run contributing to their offensive output, though their strikeout rate of eight K's suggested some swing-and-miss issues. Seattle's pitching struggled significantly, surrendering 15 hits and seven earned runs with a 6.79 ERA, while the Mariners managed only five hits and failed to drive in a run despite recording 11 strikeouts of their own. The Cubs' dominant performance came well above the Vegas total line of 2, indicating stronger offensive execution than oddsmakers anticipated. With spring training results often serving as a baseline for early-season form, Chicago's pitching depth and ability to silence Seattle's lineup could be a positive indicator heading into the regular season.