The Cubs’ Jake Arrieta throws a one-hitter in shutting out the Reds, 7 – 0. Brandon Phillips’ two-out double in the 8th is the only blemish as Arrieta strikes out 13.

Two more teams punch their tickets to the postseason. The Orioles are the AL East champions for the first time since 1997 after defeating the Blue Jays, 8 – 2, and the Nationals clinch the NL East crown for the second time in three years when they beat the Atlanta Braves, 3 – 0.

The Angels are the first team to clinch a postseason spot, securing at least a wild card berth after an 8 – 1 win over the Seattle Mariners. Rookie Matt Shoemaker wins his 16th of the year with another outstanding performance, but has to leave the game in the 8th with an apparent injury.

The Mets’ Jacob deGrom ties a major league record when he strikes out the first eight batters he faces before his opponent on the mound for the Marlins, Jarred Cosart, singles to right. DeGrom ties the record set by Jim Deshaies in 1986. He strikes out 13 in 7 innings but ends up with a no-decision as the Marlins win, 6 – 5.

With Cub runners on first and second in the fourth inning of the team’s 7-3 victory over Chicago, the Pirates turn an 5-4-3 around-the-horn triple play when third baseman Josh Harrison fields Matt Szczur’s hard grounder, stepping on the bag to force Chris Valaika before firing the ball to second to Neil Walker to retire Mike Ott. The second baseman’s relay to first sacker Andrew Lambo completes the first triple killing in the 14-year history of PNC Park.

The Marlins win their first game since losing star OF Giancarlo Stanton to an injury thanks to a dramatic 9th-inning comeback against the Phillies. Trailing 4 – 1, the Marlins score four times against closer Jonathan Papelbon as Jordany Valdespin, Christian Yelich and Justin Bour collect RBIs to tie the score, and a wild pitch by Papelbon lets in the winning run. A frustrated Papelbon then gets ejected by umpire Joe West for gesturing at the crowd before Steve Cishek pitches the bottom of the inning to rack up his 35th save, setting a new personal best. Papelbon will be fined and suspended seven games for his unprofessional gesture, but umpire West will also receive a one-game suspension for grabbing the pitcher’s jersey after the incident.

Jonathan Papelbon is ejected for grabbing his crotch, responding to the boos from the Citizens Bank Park crowd after he gives up four runs in the ninth inning of Phillies’ 5-4 loss to Miami. The apologetic closer, who insists he wasn’t making a vulgar motion toward fans, will be suspended for seven games and fined by Major League Baseball for making a lewd gesture and for bumping Joe West, the ump who will also receive a one-day suspension for pulling on the reliever’s jersey after he threw the player out of the game.

2014 – The Dodgers crush the Giants, 17 – 0, setting a record for most runs by a visiting team at AT&T Park. The Dodgers’ 24 hits are the most by any team at the ballpark. Zack Greinkepitches 6 scoreless innings and adds a double and homer, while Hanley Ramirez has four hits and Matt Kemp goes 3 for 3.

The Orioles move closer to clinching the AL East title with a doubleheader sweep of the Yankees, 2 – 1 and 5 – 0. But they also get bad news as slugger Chris Davis is handed a 25-game suspension for testing positive for amphetamines.

Alex Cobb of the Rays makes a bid for a no-hitter against the Yankees, keeping them hitless until Chris Young doubles with one out and New York trailing 4 – 0 in the 8th. Pinch-hitter Martin Prado follows with a pinch homer off reliever Brad Boxberger that cuts the lead in half. Not content with having spoiled Cobb’s big night, Young then hits a walk-off three-run homer off Jake McGee in the 9th to give the Yanks a 5 – 4 win.