Interstate Online Poker and MSIGA Explained: How It Works

Interstate poker is critical to the health of online poker in the United States. When two or more states enter a liquidity-sharing agreement, operators can seat players from different states at the same tables. Multi-state player pools create bigger tournaments, better prize pools, and busier cash games.

The Multi-State Internet Gaming Agreement (MSIGA) serves that purpose in the US online poker market. Six states are MSIGA members, and any poker site active in at least two member states can share tables across state lines.

Interstate Poker Sites

Multi-State Poker Sites

One of the critical components for multi-state poker to work is for poker sites to operate in more than one state. Single-state poker operators can only serve players from that jurisdiction.

Several poker sites operate in at least two states:

BetMGM Poker

BetMGM Poker is available in Michigan, New Jersey, and Pennsylvania and shares players between all three states. There’s also a good chance that BetMGM Poker will expand to West Virginia next.

BetMGM is the flagship poker site of the Partypoker US Network, which also includes Borgata Poker and Partypoker.

WSOP Poker

WSOP Online operates shared tables for players in Michigan, New Jersey, Nevada, and Pennsylvania.

In the best-case scenario, WSOP Poker launches shared tables in West Virginia. Checking that box would allow WSOP to share players across a combined pool comprising MI, NJ, PA, NV, and WV.

BetRivers Poker

BetRivers Poker offers shared tables in Delaware, Michigan, Pennsylvania, and West Virginia.

The network’s combined four-state population of 26 million residents lags BetMGM’s network (33 million) and WOSP Online (36 million), but BetRivers plans to launch next in New Jersey. Launching shared tables in New Jersey would bring the BetRivers Poker Network up to a more competitive combined population of just under 36 million.

PokerStars

PokerStars operates in Michigan, New Jersey, and Pennsylvania. It shares cash game and tournament players between Michigan and New Jersey, but Pennsylvania players remain segregated. It’s unclear why PokerStars hasn’t yet expanded shared tables to Pennsylvania.

Company officials have indicated they’re also considering entering West Virginia but haven’t provided a definitive timeline.

Borgata Poker

Borgata Poker is only available in Pennsylvania and New Jersey, but it benefits from shared player pools as a member of the Partypoker US Network.

Party Poker

Party Poker only operates in New Jersey but also benefits from shared player pools through the Party Poker US Network.

Why MSIGA Is Important For US Online Poker

Players hoping for a return to the glory years of online poker have been disappointed by the slow rollout of online poker one state at a time. Absent federal legislation legalizing poker across the country in one fell swoop, individual states have taken it upon themselves to pass laws legalizing poker within state lines only.

The biggest challenge facing the industry today is overcoming the quintessential catch-22 of poker: traffic and liquidity.

Busy poker sites attract new players. Slow poker sites do not. Bridging that divide is made particularly challenging by the Federal Wire Act, which prohibits poker sites from accepting customers across state lines and limits every poker site’s potential player pool to a single state.

Interstate compacts overcome the challenge of limited player pools by allowing poker sites in regulated states to share liquidity.

As additional states sign similar player-sharing agreements, the potential pool of players will expand significantly and increase liquidity for operators across the board.

History Of Interstate Online Poker In The USA

Legal interstate online poker in the USA dates to 2014, but several years passed before the concept gained enough momentum to make a substantial difference for players. Nevada and Delaware got the ball rolling in 2014 when their governors signed a player-sharing compact and established the Multi-State Internet Gaming Agreement.

Over a year passed without action, and poker sites in Delaware and Nevada began sharing tables in March 2015.

New Jersey joined MSIGA in 2017 when then-Governor Chris Christie signed an updated liquidity-sharing compact with Delaware and Nevada. New Jersey poker sites began sharing tables with Delaware and Nevada the following year.

New Jersey’s addition was a turning point for MSIGA. Previously, the DE-NV agreement did little to move the needle for online poker traffic and liquidity. Both states combine for fewer than four million residents. DE Lottery Director Vernon Kirk once noted that the DE-NV compact only resulted in a “moderate increase” in online poker revenue for his state’s operators.

New Jersey and its nearly nine million residents singlehandedly tripled MSIGA’s potential player pool.

Several more years passed before MSIGA reached its next milestone. In May 2022, Michigan became the fourth state to join MSIGA. With a population of almost 10 million, Michigan’s addition marked another significant MSIGA expansion. WSOP Online was the first poker site to take advantage of the situation when it added Michigan to its shared liquidity pool in May 2024.

West Virginia became the newest MSIGA member in 2023. West Virginia’s (pop. 1.7 million) addition wasn’t hugely impactful for MSIGA, but it was critical to making online poker viable in West Virginia.

In late 2024, Pennsylvania officials revealed plans to join MSIGA. Pennsylvania’s first interstate poker tables launched in April 2025. The addition of Pennsylvania (pop. 12.8 million with an estimated 150,000 active online poker players) marked another significant milestone in the evolution of online poker in the USA.

Will Additional States Join MSIGA?

Connecticut has also legalized online poker but does not yet have active operators. Although Connecticut would be a small market on its own (pop. 3.7 million), its inclusion in the shared poker network would give Connecticut players access to a much larger player pool.

Interstate Online Poker FAQ