MLB playoff prediction markets: How to trade the NLDS on ProphetX, Kalshi, Polymarket, OG.com

Playoff baseball is underway across the country, and some teams are suiting up for a pivotal Game 3 of the NL Divisional Series round.

The Brewers took a commanding 2-0 series lead over the Padres Sunday night, as Jackson Chourio his a walk-off two-run single off one of the best closers in baseball in Mason Miller. Meanwhile, the Braves bounced back to tie things up at 1-1 with the Dodgers as Atlanta was able to chase Blake Snell early as the hurler racked up give walks in less than four innings.

While sportsbooks are a popular option for wagering on the action, prediction markets are rapidly growing in popularity. Instead of betting against a bookmaker who’s already tilted the odds in favor of the house, this format features users trading against each other on outcomes they believe will happen.

Users who predict correctly will get paid by those who slip up in their decision, and a live market price reflects what the crowd thinks will happen at a given moment.

Now is the perfect time for sports fans to use prediction markets. New users can get started with the TSN promo code for a $75 prediction bonus on ProphetX. The Sporting News shares knowledge on the best prediction market apps to use for the riveting MLB NLDS slate, including the best offers and information about each platform.

MORE: A complete guide for using ProphetX

How to trade the NLDS with prediction markets

Trading on the NLDS on prediction markets is a simple process for users to take part in. Here's a step-by-step guide on how to trade in on the action:

1. (if applicable) Create a prediction markets account: New users must first find a prediction market site or app that speaks to them, and create an account with their email and other verification information. Sporting News recommends either ProphetX or OG.com. Be sure to input any applicable promo codes (TSN on ProphetX for $75 in incentive funds once you trade $50). 
2. (if applicable) Verify your account and deposit: Once users set up their account with verification details and deposit funds, they can move on to making a prediction.
3. Find the MLB section: On the left-hand side or top of the screen, a navigation bar is equipped with every sport that can be predicted on. OG.com requires users to click on the "Sports" section first, befor ebeing presented with every sports market. Click on or tap MLB.
4. Locate a desirable game and market: Now that you've made it to the MLB tab, you'll be presented with games that can be predicted on. Click on an NLDS game and find a market (game lines, player props, etc.). Good luck!

MORE: Which prediction markets are best for sports?

ProphetX NLDS prediction market offer

ProphetX is one of the best up-and-coming prediction markets in the country, and the new user promo code is a big reason for that status. Currently, first-time players on ProphetX can claim a generous welcome offer at sign-up to trade $50 and earn $75 in bonus funds.

Once applying the TSN promo code, new users must trade $50 on any qualifying market to receive the bonus reward. The $75 bonus will be paid out in three $25 increments over 14 days. With the welcome bonus awarded right out of the gate, new players can have the ability to continue wagering on the ProphetX platform using incentive funds rather than having to make an additional deposit right away.

PROPHETX: New users can use promo code TSN to trade $50 and get $75 in incentive funds

Top NLDS futures on ProphetX

• Milwaukee Brewers to win NLDS (92% on ProphetX)

Milwaukee's 2026 regular season was virtually hiccup-free. They finished as the top seed in the NL with a 103-59 record, even beating the Dodgers' 100-62 mark, and 24-year-old Jacob Misiorowski is already a bona fide star who led the league in strikeouts (252) and WHIP (0.80). Now, they have one more game to win before this prediction cashes. The Brewers have traditionally fallen short every postseason, but a team boasting the league's best cumulative batting average, second-most runs, and second-fewest opponent batting average and bases allowed seems poised for greatness. Even if they fall to the Dodgers again in the NLCS, they should be able to get by San Diego beforehand.

• Los Angeles Dodgers to win NLDS (60.63% on ProphetX)

It doesn't seem to matter where the Dodgers finish each season. It's usually atop the National League, but this year, they possess the No. 2 seed. After a two-run win in their first NLDS game, the Dodgers fell to the Braves 3-2, which means they'll be heading on the road to a hostile Atlanta that is praying with everything they've got to see Los Angeles fall. The Dodgers not leading this series is tremendous value that shouldn't be ignored. Take this line, and run.

MORE: Everything to know about the ProphetX promo code

Best NLDS Game 3 value plays on ProphetX

• LAD vs. ATL: Under 6.5 total runs (53.7% on ProphetX)

Tuesday's Game 3 features one of the best pitching matchups of the postseason so far. Chris Sale, at 37 years old, and Yoshinobu Yamamoto will both be wheeling and dealing when they're called upon. Atlanta batters have a .158 average when facing LA's ace throughout their careers, while Sale looked dominant during the first six innings of his Game 1 start against Philadelphia. Runs will be a luxury in this contest, so don't be afraid to capitalize on that.

• MIL vs. SD: Padres ML (56.33% on ProphetX)

What this matchup boils down to is which side's pitcher has fewer question marks. That method of thinking gives a slight advantage to San Diego, who will be playing in their home Petco Park for Games 3 and 4 (if applicable). For Milwaukee, Dustin May hasn't gone over three innings since Sept. 11th, and has allowed 2+ runs in each of those starts. Nick Pivetta, on the other hand, hasn't pitched very long either, but his ball club has looked better in his recent starts. It's arguable that San Diego should be up 2-0 with a ceiling controversy in Milwaukee and Mason Miller's uncharacteristic blown save. They're due for a win and they should prevail in front of their home crowd.

OG.com NLDS prediction market offer

On OG.com, new users can trade $10 and get $10 on the prediction platform.

This is exclusive to new accounts that are verified as 18 years old and reside in the United States. Availability varies by state, and other terms and conditions may apply.

Top NLDS futures on OG.com

Best NLDS Game 3 value plays on OG.com

• LAD vs. ATL: Braves ML (50% at OG.com)

While Atlanta may not be able to beat the Dodgers two more times, they are more than capable of stealing their first of two home games in this series. The Braves seem to have briefly swung the momentum in their favor, and Truist Park should be quite the setting for anyone who doesn't like Los Angeles. They'll have Sale on the mound for the pivotal Game 3 matchup on Tuesday evening, but Yamamoto coming out of LA's dugout is a force to be reckoned with as well.

• MIL vs. SD: Under 7.5 runs (54% at OG.com)

Despite San Diego entering this series with the Brewers in the midst of a massive run-scoring streak, they haven't been able to hit four runs in two straight affairs, and both of their games have fallen under seven total runs. That stretch is likely to continue when Nick Pivetta and Dustin May share the mound late on Tuesday night. Both of these clubs have a tremendous bullpen, outside of Mason Miller's uncharacteristic choke in Milwaukee this past weekend. If each starter can do their job, this should be this series' third game in a row that falls under its run projection.

NLDS markets on Kalshi

Of course, Kalshi offers its own batch of markets for the NL Divisional Series as well. They're outlined here:

• Game lines (moneyline, run line, total runs)
• Team totals
• Batter props (home runs, hits, hits + runs + RBIs, total bases, RBIs, stolen bases)
• Pitcher props (strikeouts, outs recorded, earned runs, hits allowed, walks)
• Inning props (YRFI/NRFI, inning total runs, inning winner, extra innings)

MORE: How ProphetX's transaction fees compare to Kalshi, Polymarket

NLDS markets on Polymarket

Finally, it's time to look at what markets Polymarket is offering for the NLDS. Here's what users can predict on:

• Game lines (moneyline, run line, total runs)
• Team totals
• Batter props (home runs, hits, total bases, hits + runs + RBIs, RBIs, stolen bases)
• Pitcher props (strikeouts, hits allowed, pitcher outs, runs allowed, pitcher win, walks allowed)
• Inning props (YRFI/NRFI, inning total runs, inning winner, 1st 5 innings ML/total runs, extra innings)