Citizens Bank Park hosts Sunday Night Baseball's series finale between the Yankees and Phillies at 7:20 p.m. ET on NBC and Peacock — and the Kalshi referral code ACTION is the strongest new-user offer available to trade it. Register, complete $25 in qualifying trades, and Kalshi posts up to $500 in bonus funds to your account automatically. Ryan Weathers (3-7, 4.40 ERA) starts for New York against Cristopher Sanchez for Philadelphia in a confirmed pitching matchup that gives tonight's market more definition than most same-day offerings.
Claim the $500 welcome bonus from the Kalshi promo code ACTION below — one of the best prediction market promos for Sunday's MLB schedule:
Kalshi Referral Code ACTION — Offer Details
| Category | Details |
|---|---|
| Kalshi Referral Code | ACTION |
| New User Offer | Trade $25, Get Up to $500 Bonus |
| Game Spotlight | Yankees vs. Phillies — Sunday, July 26, 2026 |
| Terms and Conditions | 18+ and not available in AZ, IL, MA, MD, MI, MT, NV, or OH |
| Bonus Last Verified On | Sunday, July 26, 2026 |
The Kalshi referral code ACTION and the Kalshi promo code unlock the same offer — entering either at registration activates the Trade $25, Get Up to $500 welcome bonus. No winning position required and the $25 threshold can be cleared in a single trade or split across multiple Yankees vs. Phillies markets.
How to Claim the Kalshi Referral Code ACTION
- Select a Kalshi promotional module on this page or follow the Kalshi referral code ACTION link.
- Open a new account on the Kalshi website or mobile app.
- Confirm ACTION is populated in the referral-code field before completing registration.
- Finish the required identity-verification step.
- Fund your account through an eligible deposit method.
- Complete at least $25 in cumulative qualifying trades on Yankees vs. Phillies or any available Kalshi market.
- Collect your bonus credit automatically once all conditions are satisfied.
What Makes Kalshi the Right Platform for Sunday Night Baseball
Kalshi is a CFTC-regulated peer-to-peer exchange — users trade event contracts directly against each other rather than against a house margin. That structure strips out the fixed pricing baked into traditional sports betting and produces contracts driven by live crowd-sourced probability. For a nationally televised MLB Sunday night game with a confirmed pitching matchup already in place, that means the market is already forming and new users can enter positions before the pre-game picture is fully priced in.
Kalshi is one of the most versatile prediction market apps available for tonight's game — contract prices update continuously through every half-inning as bullpen decisions, lineup moves, and in-game momentum shifts flow through into pricing in real time. It's what separates Kalshi from a static odds board and makes it one of the top prediction markets for a high-volume Sunday night broadcast.
Yankees vs. Phillies — Kalshi Market Overview (7:20 p.m. ET, NBC, Citizens Bank Park)
Sanchez gives the Phillies a contact-suppression edge at Citizens Bank Park, one of the more run-friendly environments in the NL. Weathers' inconsistency across the second half and a deep Philadelphia lineup make the Phillies the structural home favorite heading into Sunday night — the market's 61% implied probability on Philadelphia reflects that edge. The Yankees at 39% represent a live underdog with genuine offensive depth, and the total market sits at an even split with both sides at 50%.
Check the latest MLB odds alongside Kalshi contract prices as lineups post this afternoon — both markets will move when the full pre-game picture is confirmed.
Kalshi contract prices for Yankees vs. Phillies:
| Outcome | Probability | Kalshi Price |
|---|---|---|
| Phillies Win | 61% | $0.61 per contract |
| Yankees Win | 39% | $0.39 per contract |
| Under 8.5 Runs | 50% | $0.50 per contract |
| Over 8.5 Runs | 50% | $0.50 per contract |
Prices subject to change before first pitch.
A user backing the Yankees at $0.39 could purchase 52 contracts for approximately $20.28, clearing the qualifying threshold in a single position. A New York win returns $52 — roughly $31.72 in gross profit before fees — with the full welcome bonus already in the account. The Phillies at $0.61 suit users who lean home: 42 contracts at approximately $25.62, returning $42 on a Philadelphia win. Among all the prediction market promos available for Sunday's slate, the Kalshi referral code ACTION combines the lowest qualifying threshold with the highest bonus ceiling in the space.
Additional Kalshi Markets for Yankees vs. Phillies
The bonus from the Kalshi referral code ACTION isn't restricted to a single contract. Once the $25 qualifying threshold is cleared, new users can redirect funds to any eligible market on Kalshi — other Sunday night games, weekend futures, or player props once tonight's lineups are confirmed.
Additional markets worth exploring:
- Run line (Yankees +1.5 / Phillies -1.5)
- Over/Under 8.5 total runs
- First-inning result (NRFI/YRFI)
- Cristopher Sanchez strikeout total YES/NO
- Series winner (Yankees/Phillies)
- First team to score YES/NO
Users who want to run a fixed-odds sportsbook account alongside Kalshi can compare the top welcome deals on the MLB betting promos page for Sunday's full card. Review each contract's settlement terms before trading — moneyline, totals, and player-prop markets each resolve under separate rules on Kalshi.
Claim the $500 bonus with the Kalshi referral code ACTION below:
Must be 18 years or older and have a legal U.S. residential address within the applicable state, Washington, D.C., or U.S. territories. Not available in AZ, IL, MA, MD, MI, MT, NV, or OH.
