The board had the Mariners as sizable home favorites on the run line and the total sitting at 7.5, and by the time the last out was recorded, both numbers had plenty of company — the game finished with 9 combined runs and a finish nobody saw coming.
Chicago had won 2 of 3 in its series against the White Sox before dropping the opener here, and for most of Saturday it looked like the Cubs would even the ledger — they broke a scoreless tie with a 3-run 5th and carried a 4-1 lead into the late innings. Seattle had split its last 5 games heading in, including a brutal 22-run shutout loss to Milwaukee earlier in the week, so the Cubs jumping out front tracked with the form on paper.
But Seattle's offense woke up when it mattered most. The Mariners scratched across a run in the 5th to trim the deficit, then erupted for 3 runs in the bottom of the 9th to complete the comeback and steal it 5-4 — the kind of finish that turns an otherwise middling August Saturday into the highlight reel a rookie starter's debut deserved, even if Anderson himself didn't get the win.
For a Cubs team still nursing a long injury list — Justin Steele, Cade Horton and a stack of bullpen arms all parked on the 60-day IL — this is exactly the kind of late-inning letdown that stings more than it should against a sub-.500 opponent. For the Mariners, the walk-off is a nice adrenaline boost, but the bigger story going forward is whether Anderson's stuff translates now that the league has seen it once.