If you watched the first six and a half innings of Friday’s Chicago Cubs-Arizona Diamondbacks game at Wrigley Field, you would not have expected a 13-11 final score. But when the wind is blowing out at The Friendly Confines, chaos tends to ensue.

The Cubs and Diamondbacks combined for 16 runs in the eighth inning Friday — the most combined runs in a single inning at Wrigley Field ever, breaking the previous record of 15 runs set way back in 1922.

[HIGHLIGHTS: Watch Cubs’ eighth-inning comeback vs. Diamondbacks]

Entering the top of the eighth inning, the Cubs had just taken a 7-1 lead behind Ian Happ’s grand slam. Reliever Porter Hodge had been warming in case it was a close game, but Cubs manager Craig Counsell elected to go with newly recalled left-hander Jordan Wicks. But Wicks allowed three singles on just five pitches, forcing Counsell to bring in Hodge, who then gave up a grand slam to Diamondbacks third baseman Eugenio Suárez, making it a 7-5 game.

Hodge retired two of the next four batters he faced before giving up a Geraldo Perdomo infield single to make it 7-6. Randal Grichuk doubled down the left field line to score two more runs and give the Diamondbacks the lead — on a ball that Cubs third baseman Gage Workman couldn’t glove.

What was believed to be the nail in the coffin came off Lourdes Gurriel Jr.’s bat — a three-run homer off Ethan Roberts — to make the score 11-7. The Cubs went into the top of the eighth with a 99 percent win probability, and ended it with a less than 4 percent chance to win the game, per Baseball Savant.

[READ: Cubs takeaways: What we learned in wild 13-11 win vs. Diamondbacks]

The Cubs’ comeback trail started when both Nico Hoerner and Pete Crow-Armstong reached base ahead of Carson Kelly in the bottom of the eighth. Kelly blasted his second home run of the day — a three-run shot to cut the lead to 11-10. After Ian Happ laced a single to left off Diamondbacks reliever Joe Mantiply, Kyle Tucker gave the Cubs the lead with a two-run shot.

It was Tucker’s second home run in two at-bats this season against Mantiply, with the first coming March 30 in Arizona.

Seiya Suzuki added a solo home run later in the eighth, and Ryan Pressly closed the door in the ninth to secure the win in an instant classic at Wrigley Field.

It was the third time the Cubs history they had allowed 10 runs in an inning — and won that game.

The Cubs became the first MLB team to allow 10 runs in an inning and win the game since the Cleveland Indians did so in 2006. You can listen to more about the Cubs’ epic comeback on the Cubs Daily Podcast in the player below.