MLB Prediction Market Promos: Best Welcome Offers for Today’s Slate (August 14)

Baseball runs a full Friday card on August 14, and the best MLB prediction market promos give new users a fast way to get in before first pitch. Apple TV carries a doubleheader, with Cardinals vs. Cubs at 2:20 p.m. ET and Yankees vs. Blue Jays at 7:15 p.m. ET, so lock in a sign-up bonus from one of the top prediction market apps below and load your first MLB trade early.

On a prediction market, you put a price on real-world outcomes, whether that is a single game’s winner or the way the whole postseason race breaks. Six platforms carry the best MLB prediction market promos right now: Polymarket, FanDuel Predicts, Kalshi, Novig, DraftKings Predictions and ProphetX. Every one of them fronts new traders a welcome offer with real value, works in most states, and takes only a couple of minutes to join.

We ranked the six best MLB prediction market promos for August 14 so you can compare their sign-up bonuses side by side. Tap any best prediction market promos links below to claim the offer, then get your first trade in before the Cardinals vs. Cubs opener begins.

Prediction Markets	MLB Prediction Market Promos	Sign-Up Link
Polymarket	Deposit $20, Get $50 in Bonus Funds	LABS
FanDuel Predicts	Make Any Trade, Get $25 Bonus	Click Here
Kalshi	Trade $25, Get Up to $500 Bonus	LABS
Novig	Spend $25, Get $50 in Novig Coins	BCLABS
DraftKings Predictions	Trade $5, Get $150 in Predictions Dollars	Click Here
ProphetX	Trade $10, Get $20 Bonus	LABSMAX

Best MLB Prediction Market Promos for Friday, August 14

Below, we run through each of the best MLB prediction market promos and the bonus tied to every new account. Offers like these move quickly, so claim the ones live in your state today.

No two MLB prediction market apps work the same way. A few reward your first deposit, while others pay out the moment you place a trade. Read the state column in each table, then choose the apps that match where you live and how you like to trade.

1. Polymarket

Polymarket is the biggest prediction market by volume, and its MLB markets hold their liquidity from April through October. Punch in Polymarket promo code LABS, drop a $10 deposit, and a $20 trading bonus doubles your bankroll before your first trade goes in.

Coverage runs across a long list of states, and the app keeps things clean, so pulling up the Cardinals vs. Cubs or Yankees vs. Blue Jays market takes seconds. It is the deepest market pool on this page, so claim the bonus and join the action with one of the best MLB prediction market promos below.

Polymarket Promo Code	Polymarket Referral Bonus	Polymarket States Available
Polymarket Promo Code LABS	Deposit $20, Get $50 in Bonus Funds	AL, AK, AR, CA, CO, CT, DE, FL, GA, HI, ID, IN, IA, KS, KY, LA, ME, MN, MS, MO, NE, NH, NM, NJ, NY, NC, ND, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY, DC

2. FanDuel Predicts

FanDuel carries its name into the prediction space with FanDuel Predicts. There is nothing to type in with the FanDuel Predicts promo code: click through, sign up, and the welcome offer attaches on its own, which makes it one of the simplest bonuses to unlock here from the list of MLB prediction market promos. You do need to make a trade, but once you do, the $25 is yours.

The app is live in a smaller set of states for now, and its familiar layout suits traders making their first move. Lock it in before the Yankees vs. Blue Jays nightcap.

FanDuel Predicts Promo Code	FanDuel Predicts Welcome Offer	FanDuel Predicts States Available
FanDuel Predicts Promo Code (Click Here)	Make Any Trade, Get $25 Bonus	AK, AL, CA, DE, FL, GA, HI, ID, MN, ND, NE, NM, OK, RI, SC, SD, TX, UT

3. Kalshi

Kalshi runs as a federally regulated exchange, and that oversight is a big part of the draw for a lot of traders. Enter Kalshi promo code LABS, trade $25, and you can unlock up to $500 in bonuses, the highest ceiling on this list of MLB prediction market promos.

It is live across dozens of states with markets on everything from tonight’s games to season-long questions. Use the link below to get going.

Kalshi Promo Code	Kalshi Referral Bonus	Kalshi States Available
Kalshi Promo Code LABS	Trade $25, Get Up to $500 Bonus	AL, AK, AR, CA, CO, CT, DE, FL, GA, HI, ID, IN, IA, KS, KY, LA, ME, MN, MS, MO, NE, NH, NM, NJ, NY, NC, ND, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY, DC

4. Novig

Novig is built on a peer-to-peer, no-vig model, so you trade against other users rather than the house. Add Novig promo code BCLABS, spend $25, and pick up $50 in Novig Coins to get your first markets moving.

Its footprint hits a solid group of states, some of them spots where the other apps here have not launched. Grab the bonus below to start.

Novig Promo Code	Novig Sign-Up Bonus	Novig States Available
Novig Promo Code BCLABS	Spend $25, Get $50 in Novig Coins	AK, AR, FL, GA, HI, IL, IN, IA, KS, KY, ME, MA, MN, MO, NE, NH, NC, ND, OH, OK, OR, SC, SD, TX, VT, VA, DC, WI, WY

5. DraftKings Predictions

DraftKings carries its household name into prediction trading with the DraftKings Predictions promo code. No actual code to punch in: click through, sign up, and place a $5 first trade to open $150 in Predictions Dollars, one of the biggest hauls on the page.

Reach is the real story with the DraftKings promo code. While several prediction markets are shut out of major states, DraftKings Predictions is live in almost all of them, including plenty where the rest of this list is not.

DraftKings Predictions Promo Code	DraftKings Predictions Welcome Offer	DraftKings Predictions States Available
DraftKings Predictions Promo Code (Click Here)	Trade $5, Get $150 in Predictions Dollars	AL, AK, AZ, AR, CA, CO, CT, DE, FL, GA, HI, ID, IL, IN, IA, KS, KY, LA, MD, MA, MI, MN, MS, MO, MT, NE, NV, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY

6. ProphetX

ProphetX closes out the list of the best MLB prediction market promos with an easy way in. Enter ProphetX promo code LABSMAX at registration, trade just $10, and collect a $20 bonus.

It carries the widest state coverage on this page, which makes it the fallback when nothing else is live where you are. Claim the welcome offer with the promo below.

ProphetX Promo Code	ProphetX Welcome Offer	ProphetX States Available
ProphetX Promo Code LABSMAX	Trade $10, Get $20 Bonus	AL, AK, AZ, AR, CA, CO, CT, DE, FL, GA, HI, ID, IL, IN, IA, KS, KY, LA, ME, MD, MA, MI, MN, MS, MO, MT, NE, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY

Set Your Lineups Before First Pitch

Before any trade goes in, take a look at the day’s MLB lineups. A late scratch or a scheduled rest day can nudge the odds, so checking who is actually playing gives you an edge in every market. Once the cards are posted, you can shape your positions for the Cardinals vs. Cubs afternoon game and the Yankees vs. Blue Jays nightcap.

The sign-up bonuses on these MLB prediction market promos will not stick around, so claim what is live above while you can. Look over the terms before you opt in, weigh the offers that fit your state, and get that first trade down early.