According to ESPN’s win probability tracker, the Cubs entered the ninth inning of last night’s game with a 98.8% likelihood of escaping a rough week at Citizens Bank Park with a win.

When Jean Segura led off the inning with a fly out to left field, that probability rose to 99.6%.

Even Bryce Harper’s own parents had packed it in for the evening:

And then, well, you know the rest.

The wild walk-off win capped by Harper’s grand blast wasn’t just a roller coaster for Phillies and Cubs fans, it was also a turbulent ride for bettors who had action the game.


Check out this progression of how the moneyline market at DraftKings Sportsbook evolved throughout the night:

Phillies Comeback vs Cubs

Time

Odds to Win

Opening Odds

+128

7:45 PM

+210

8:07 PM

+295

8:21 PM

+650

8:36 PM

+1200

8:51 PM

+1500

10:12 PM

+500

10:16 PM

+200

10:19 PM

+185

Harper Walk Off Grand Slam

It required an insane leap of faith to cash in on +1500 odds at 8:51 p.m. with the Phillies down 5-0, but even by the time Cubs reliever Derek Holland entered the game to face Harper, a nice +185 payout was still on the table.

I imagine the reaction of those who grabbed the Phils at any point throughout the evening probably looked something like this: