MLB Prediction Market Promos: Claim Offers for Skubal’s Dodgers Debut vs. Cubs, Plus Post-Deadline World Series Odds

The biggest arm moved at the 2026 trade deadline takes the mound tonight, and MLB prediction market promos hand new users a head start before first pitch. Tarik Skubal makes his Dodgers debut against the Chicago Cubs at Wrigley Field, with the game set for 8:05 p.m. ET on TBS.

New traders on the top MLB prediction market apps unlock bonuses worth up to $500 right now across Polymarket, FanDuel Predicts, Kalshi, Novig, and ProphetX. Sign up below, claim an offer, and trade on Dodgers vs. Cubs.

Prediction markets let you trade on real MLB outcomes, game winners, series results, and season-long questions like the World Series, at prices that move like a live exchange. The best prediction market promos stack extra value onto your first deposit or first trade, so even a small stake goes further tonight.

Prediction Markets	MLB Prediction Market Promos	Sign-Up Link
Polymarket	Deposit $10, Get $20 Trading Bonus	LABS
FanDuel Predicts	Sign Up & Unlock Your Offer	Click Here
Kalshi	Trade $25, Get Up to $500 Bonus	LABS
Novig	Spend $25, Get $50 in Novig Coins	BCLABS
ProphetX	Trade $10, Get $20 Bonus	LABSMAX

Skubal’s Dodgers Debut Headlines Tonight’s Slate

Skubal lands in Los Angeles blue days after the Dodgers shipped a prospect package to Detroit for the two-time AL Cy Young winner. He carries a 2.79 ERA and 116 strikeouts into his first career start at Wrigley Field, slotting into a rotation already built for a three-peat run. The Cubs, fresh off their own deadline moves, counter at home in front of a packed Wrigley crowd.

Check tonight’s MLB lineups and the MLB weather report before you lock in any trades — wind at Wrigley swings run totals more than almost any park in MLB. Once the lineups post and conditions firm up, the MLB prediction market apps below give you the cleanest path to trade the action live.

Here are the best prediction market apps and the offers each one runs right now.

1. Polymarket

Polymarket ranks among the largest prediction markets in the world, with deep liquidity on MLB games and season-long futures. Enter Polymarket promo code LABS, deposit $10, and get a $20 trading bonus, one of the simplest MLB prediction market promos to claim before first pitch.

Polymarket Promo Code	Polymarket Referral Bonus	Polymarket States Available
Polymarket Promo Code LABS	Deposit $10, Get $20 Trading 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

2. FanDuel Predicts

FanDuel Predicts brings a household sports-trading name into the space, and the onboarding stays refreshingly simple. Activate the FanDuel Predicts promo code and claim your welcome offer, a strong entry point among MLB prediction market apps for anyone new to the format.

FanDuel Predicts Promo Code	FanDuel Predicts Welcome Offer	FanDuel Predicts States Available
FanDuel Predicts Promo Code (Click Here)	Sign Up & Unlock Your Offer	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 broad menu of MLB and cross-sport markets. Apply Kalshi promo code LABS, trade $25, and earn up to a $500 bonus — the largest of these MLB prediction market promos and the top target for high-volume traders tonight.

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, WV, WI, WY, DC

4. Novig

Novig runs a peer-to-peer, no-vig model that keeps pricing tight on popular MLB markets. Use Novig promo code BCLABS, spend $25, and get $50 in Novig Coins, giving first-time users double their value out of the gate.

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. ProphetX

ProphetX rounds out the best prediction market apps with the widest state footprint on this list. Enter ProphetX promo code LABSMAX, trade $10, and collect a $20 bonus, a low-barrier way to get in on Skubal’s debut from almost anywhere in the country.

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

Post-Deadline World Series Odds

• Los Angeles Dodgers: 39.7%
• New York Yankees: 9.9%
• Milwaukee Brewers: 8.5%
• Boston Red Sox: 8.1%
• Atlanta Braves: 6.6%
• Philadelphia Phillies: 5.8%
• Tampa Bay Rays: 5.8%
• Chicago Cubs: 5%
• Seattle Mariners: 4.3%
• Chicago White Sox: 2.6%

The Skubal trade reshaped the pennant chase, and the newest World Series odds reflect a Dodgers roster that now looks even tougher to beat. Compare the latest numbers across the top MLB prediction market apps, then put your MLB prediction market promos to work backing your call for October.

Trade Skubal’s Debut Tonight

Tonight’s Dodgers–Cubs matchup at Wrigley is the ideal spot to cash in these MLB prediction market promos. Claim an offer above, trade Skubal’s first start in blue, and shop the best prediction market promos before the 8:05 p.m. ET first pitch on TBS.