The Open Championship first round is in the books at Royal Birkdale, and it's a surprise name — American Jackson Suber — sitting alone atop the leaderboard chasing the Claret Jug.
The best Open Championship prediction market apps hand you more than $150 in combined welcome bonuses across five platforms. That means you can trade every shot of Round 2 at Royal Birkdale with bonus funds already in your account.
Round 1 quick hits:
- Suber: 5-under 65 for the solo lead, capped by an eagle at the par-5 17th
- Brown & Im: 4-under 66, one back in a tie for second
- Scheffler: 2-under 68 — birdied four of his first six to briefly lead, still very much in it
- McIlroy: ice-cold putter, well off the pace with work to do just to make the cut
- Round 2: tees off Friday morning — Peacock 1:30–4 a.m. ET, then USA 4 a.m.–3:30 p.m. ET
The top Open Championship prediction market apps — Polymarket, FanDuel Predicts, Kalshi, Novig and ProphetX — each offer a sign-up bonus. Register for all five and you stack every bonus.
On these prediction markets, you trade contracts on outcomes like who wins the 154th Open, whether Scheffler runs down the leaders, or whether McIlroy can dig out of his opening-round hole and survive the cut.
Claim all five Open Championship prediction market promos below, then put your bonus funds to work before Round 2 gets underway Friday morning.
| Golf Prediction Markets | Open Championship Prediction Market Promos | Sign-Up Link |
|---|---|---|
| Polymarket | Deposit $20, Get $50 in Bonus Funds | ACTION |
| FanDuel Predicts | Make Any Trade, Get $25 Bonus | Click Here |
| Kalshi | Trade $10, Get $15 Bonus | ACTION |
| Novig | Spend $25, Get $50 in Novig Coins | ACTION |
| ProphetX | Trade $10, Get $20 Bonus | TANBONUS |
The Best Open Championship Prediction Market Apps for Royal Birkdale
Here are the five best prediction market apps, the Open Championship prediction market promos they offer, and where to sign up.
The odds board, in brief:
- Suber — the Round 1 leader at 5-under, but priced at just 4%, a sign the market wants to see him back it up before buying in
- Scheffler — still the favorite near 15% after an opening 68 that put him right in contention
- Fleetwood — hometown favorite near 4.3%, three back after a solid 69 in front of the Birkdale crowd
- McIlroy — out to about 2.6% after a cold-putter 74 buried him well off the pace and near the cut line
Odds move fast in golf, especially mid-round. Confirm the price before you trade.
1. Polymarket
Polymarket runs the largest prediction markets in the world by volume. Its Open Championship contracts already trade heavily as Round 2 plays out.
Deposit $20 and collect $50 in bonus funds — the most generous of all the Open Championship prediction market promos here. Enter the Polymarket promo code ACTION at sign-up to lock it in.
Trade "Will Scheffler win the 2026 Open Championship?" or price up a McIlroy top-five market. Because Polymarket prices track real money, the odds move in real time on every birdie and bogey.
| Polymarket Promo Code | Polymarket Referral Bonus | Polymarket States Available |
|---|---|---|
| Polymarket Promo Code ACTION | 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 Predicts brings a familiar name to the prediction-markets space, and its welcome offer keeps the barrier low.
Make any trade and FanDuel hands you a $25 bonus. Register with the FanDuel Predicts promo code and place one Open Championship contract to trigger it — one of the simplest Open Championship prediction market apps to unlock this week.
The app leans into clean markets: outright winner, top-10 finish, and make-the-cut. Scheffler's "to make the cut" price is one of the most-traded contracts Friday morning.
| FanDuel Predicts Promo Code | FanDuel Predicts Sign-Up Bonus | 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 CFTC-regulated exchange, so you trade event contracts rather than place traditional wagers.
Trade $10 and Kalshi credits you a $15 bonus with the Kalshi promo code ACTION — one of the easiest Open Championship prediction market promos to claim.
Kalshi lists clean yes/no markets, like whether McIlroy finishes inside the top five.
| Kalshi Promo Code | Kalshi Sign-Up Bonus | Kalshi States Available |
|---|---|---|
| Kalshi Promo Code ACTION | Trade $10, Get $15 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 and rewards new traders generously.
Spend as little as $25 and grab $50 in Novig Coins with the Novig promo code ACTION. That value puts Novig among the top Open Championship prediction market apps for first-time users.
Because Novig strips out the house margin, the odds often beat what you see elsewhere. Put those coins toward a Fleetwood top-10 market or a longer-shot outright and keep more of your upside.
| Novig Promo Code | Novig Sign-Up Bonus | Novig States Available |
|---|---|---|
| Novig Promo Code ACTION | 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 list with a peer-to-peer exchange and a simple welcome offer.
Trade $10 and earn a $20 bonus with the ProphetX promo code TANBONUS. It runs in more states than any other app here — one of the best prediction market promos on the board for Friday.
Back or lay Scheffler to win a second straight Claret Jug, which would make him the first back-to-back Open champion since Pádraig Harrington in 2007-08. Prefer a contrarian angle? Lay the favorites and trade the field instead. Add ProphetX to your lineup of prediction markets for the Open Championship at Royal Birkdale.
| ProphetX Promo Code | ProphetX Welcome Offer | ProphetX States Available |
|---|---|---|
| ProphetX Promo Code TANBONUS | 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, NV, NH, NJ, NM, NY, NC, ND, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VT, VA, WA, WV, WI, WY |
