MLB Prediction Market Apps: Top Sign-Up Bonus Offers on August 7

Baseball fans get a full Friday slate on August 7, and the best MLB prediction market apps give new users a fast way to get in on the action. The card builds through the afternoon toward Apple TV’s Friday Night Baseball doubleheader: Orioles vs. Rangers at 8:15 p.m. ET, followed by Rays vs. Mariners at 9:45 p.m. ET. Lock in a sign-up bonus from one of the top MLB prediction market apps below before first pitch.

Prediction markets let you trade on real-world outcomes, from which team wins a single game to how the full MLB postseason race shakes out. The best MLB prediction market apps — Polymarket, Kalshi, FanDuel Predicts, Novig, DraftKings Predictions and ProphetX — each hand new MLB traders a welcome offer worth real value. These apps cover most states, and signing up takes only a few minutes.

We ranked the five best MLB prediction market apps for August 7 so you can compare their sign-up bonuses side by side. Tap on any of the best prediction market promos links to claim it, then load up your first trade before the Orioles vs. Rangers 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 Apps for August 7

Here’s a closer look at each of the best MLB prediction market apps and the welcome offer attached to every account. These sign-up bonuses change often, so grab the ones that match your state today.

Every offer works a little differently. Some reward your first deposit, while others pay you simply for placing a trade. Check the state availability in each table, then pick the MLB prediction market apps that fit where you live and how you like to trade.

1. Polymarket

Polymarket runs the largest prediction market by trading volume, and its MLB markets stay liquid all season long. New users who enter Polymarket promo code LABS and deposit $10 get a $20 trading bonus, which doubles your starting balance before you place a single trade.

The platform covers a wide list of states and keeps its interface simple, so you can find the Orioles vs. Rangers market and trade it in seconds. Among these MLB prediction market apps, it’s the one with the deepest liquidity — use the promo below to claim your bonus.

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 brings its trusted brand to the prediction space with FanDuel Predicts. Activate the FanDuel Predicts promo code offer by clicking through and signing up — no promo code required. This makes it one of the easiest welcome offers to unlock among MLB prediction market apps.

The app currently serves a focused group of states. FanDuel’s clean design makes it a strong pick for first-time traders. Claim the offer below before the Apple TV 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 operates as a federally regulated exchange, which gives it a level of oversight that many traders value. Enter Kalshi promo code LABS, trade $25, and you can earn up to $500 in bonuses, the largest ceiling among these offers from MLB prediction market apps.

Kalshi covers dozens of states and lists markets on everything from MLB games to season-long outcomes. Sign up through the link below to start.

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 runs a peer-to-peer, no-vig model, meaning you trade against other users instead of the house. Apply Novig promo code BCLABS, spend $25, and collect $50 in Novig Coins to fuel your first markets.

The app reaches a solid mix of states, including several where other MLB prediction market apps aren’t live yet. Grab the bonus below to get started.

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 brings its household name to the prediction space with DraftKings Predictions. Activate the offer by clicking the link and signing up — no physical DraftKings Predictions promo code required — then place a $5 first trade to unlock $150 in Predictions Dollars, one of the largest welcome hauls among MLB prediction market apps.

The real edge with the DraftKings promo code here is reach: where several prediction markets are boxed out of major states, DraftKings Predictions is live in nearly every one — including many where the other apps on this list aren’t available.

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

5. ProphetX

ProphetX rounds out our list of the best MLB prediction market apps with a low barrier to entry. Enter ProphetX promo code LABSMAX during registration. Then, trade just $10, and get a $20 bonus.

ProphetX offers the widest state coverage on this page, so it’s often the go-to when other apps aren’t available. Use the promo below to claim your welcome offer.

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 you lock in any trade, check the day’s MLB lineups. Late scratches and rest days shift the odds, so confirming the MLB lineups gives you an edge across every market. Once lineups drop, you can build your positions for Orioles vs. Rangers and Rays vs. Mariners.

The sign-up bonuses on these MLB prediction market apps won’t last forever, so claim the offers above while they’re live. Read the terms before you opt in, compare the bonuses, confirm your state, and sign up before the 8:15 p.m. ET first pitch on Apple TV.