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MLB Monday three-team mega parlay (+1029 odds): Rockies to roll Padres

MLB Monday three-team mega parlay (+1029 odds): Rockies to roll Padres

Andrew Ortenberg
Andrew OrtenbergAuthor
UpdatedSep 15, 2026
Reading time4 min

We’re approaching the home stretch of the 2021 MLB season, and we now know more or less where things stand. A new week is here, why not celebrate by going for a big payday on Monday? That’s right; we’re back with another MLB mega parlay, this time a three-teamer with a payout north of 10/1, and we’re counting on the Rockies to upset the Padres in their NL West showdown.

We’re going big and bold, so let’s not waste any more time. But before we dive in, don’t forget to check out our picks for the side and total on every MLB game, with our team of experts in red-hot form.

I’ve been on fire with these mega parlays recently. I just cashed this MLB mega parlay a couple Tuesdays ago at 12/1 odds, and I did the same thing the previous Tuesday at 13/1 odds. One of my colleagues also just cashed the MLB mega parlay recently at 9/1 odds, so let’s do it again!

Oakland Athletics -1.5 (+150)

Colorado Rockies ML (+115)

San Francisco Giants -1.5 (+110)

Parlay odds: +1029

Let’s break down each of the three legs one by one.

Oakland Athletics -1.5 (+150) over Chicago White Sox

The A’s have been absolutely raking recently, so they make a lot of sense as a team to back on the run line. They’ve scored at least 4 runs in 10 straight games, and have won 8 of those. Just this past week they beat the Indians 17-0, showing how high their upside is. The White Sox have lost 4 of their past 5, and will start Dallas Keuchel, who has imploded recently. Keuchel got off to a tough start, then had a solid June, and then had a 6.26 ERA in five July starts.

He’s been mediocre in two August outings, and Chicago has lost each of the last four times he’s taken the mound. Conversely, Oakland starter Frankie Montas has been coming on quite strong. He gave up only one earned run in six innings his last time out, and had a 2.30 ERA in July.

Be sure to check out our full game preview for Oakland Athletics vs Chicago White Sox

Colorado Rockies ML (+115) over San Diego Padres

Getting the Rockies as a home underdog always has me intrigued. Colorado has some of the starkest home/road splits of any team you’ll ever see. They’re just 14-45 on the road this year, but are a very impressive 38-21 inside the friendly confines of Coors Field. The Rockies got off to a terrible start, but they’ve actually played above .500 ball since May 29. Antonio Senzatela will start for Colorado, and he has actually been much better at Coors Field this year despite its status as the most hitter-friendly park in the league.

This is the third season in a row that he’s been better at home, so I don’t think it’s a fluke. The Rockies’ lineup should be able to get to Padres starter Ryan Weathers, a 21-year-old rookie with a 4.72 ERA. He just pitched against the Rockies a couple of weeks ago, and gave up eight earned runs in only four innings.

Be sure to check out our full game preview for San Diego Padres vs Colorado Rockies

San Francisco Giants -1.5 (+110) over New York Mets

To wrap up this mega parlay and hopefully bring us home we’ve got the Giants. San Francisco has been playing great recently, but this is just as much a fade of the Mets than anything else. New York is just 5-12 in their last 17 games, and they’re coming off a 14-4 demolition at the hands of the Dodgers. After that Sunday Night Baseball beatdown, they had to hop on an overnight red-eye flight across the country for a game in San Francisco the next day.

To top it all off they’ve got a big disadvantage in the pitching matchup. Rich Hill has given up at least three earned runs in three of his four starts since the Mets traded for him. Giants starter Kevin Gausman has been one of the National League’s best pitchers, and he enters with a 2.29 ERA. San Francisco has won seven of their last eight games overall.

Be sure to check out our full game preview for New York Mets vs San Francisco Giants

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