BetRivers vs Underdog: One's Live in Iowa, One's Blocked

BetRivers vs Underdog: A Regional Book Against a DFS App

BetRivers vs Underdog is a comparison between two products that rarely compete for the same deposit. BetRivers is Rush Street Interactive’s sportsbook and casino brand, licensed and live in 15 states as of September 2026. Underdog is a Brooklyn daily fantasy sports company that briefly ran its own real-money sportsbook, closed it nationwide in December 2025, and now also runs a federally licensed prediction exchange. One takes a moneyline; the other takes a pick’em roster.

BetRivers and Underdog turn up in the same "best gambling apps" roundups often enough to invite a direct comparison, but the two rarely fight over the same deposit. BetRivers is Rush Street Interactive's sportsbook and casino brand, live in 15 states as of September 2026. Underdog is a daily fantasy sports company that tried a real-money sportsbook, closed it nationwide in December 2025, and now runs pick'em contests plus a brand-new federally licensed prediction exchange. Different products, different regulators, different questions.

Is BetRivers or Underdog Legal in Your State?

BetRivers Sportsbook operates the way a licensed book is supposed to: on in Arizona, Colorado, Delaware, Illinois, Indiana, Iowa, Louisiana, Maryland, Michigan, New Jersey, New York, Ohio, Pennsylvania, Virginia, and West Virginia because a state regulator approved it, off everywhere else. Underdog's Classic Pick'em runs under the DFS exemption in roughly 15 states of its own and is blocked outright in Connecticut, Hawaii, Idaho, Iowa, Louisiana, Maine, Montana, Nevada, and Washington — a completely separate legal framework, licensed under a different theory of what the product even is.

Iowa and Louisiana are where the maps actually meet. Both states have a live BetRivers sportsbook. Both also sit on Underdog's blocked list. Everywhere else, the two brands are mostly just missing each other rather than contradicting each other — Iowa and Louisiana are the two states where a reader gets a real yes from one name and a real no from the other.

Is BetRivers or Underdog More Legit?

BetRivers' legitimacy case is structural: a publicly traded parent (NYSE: RSI) that also runs the land-based Rivers Casino chain, with Q1 2026 revenue of $370.4 million, up 41% year over year — numbers a reader can check in a quarterly filing rather than take on faith. Underdog's case is a track record with a rough patch in it: the $17.5 million New York settlement it paid in March 2025 over contests regulators said exceeded its old permit, followed by an exit from that state. What happened next matters, too — Underdog kept operating everywhere else and built its own CFTC registrations for Underdog Predict rather than fold.

Sportsbook, Casino, DFS: Who Actually Offers What

BetRivers is sportsbook-first, with online casino limited to Delaware, Michigan, New Jersey, Pennsylvania, and West Virginia and no pick'em product anywhere in the lineup. Underdog has no sportsbook left to compare — that ended in December 2025 when it settled every open North Carolina wager and shut the book down nationwide. What Underdog has instead is Classic Pick'em, the peer-to-peer Pick'em Champions launched in New Jersey and Delaware in March 2025, and the standalone Underdog Predict exchange that went live in July 2026 on its own Designated Contract Market, Derivatives Clearing Organization, and Futures Commission Merchant registrations.

Which One for Who

A reader in one of BetRivers' 15 sportsbook states who wants a moneyline, spread, or parlay against a house line is asking about BetRivers — Underdog stopped offering that entirely. A reader who wants pick'em-style DFS contests should check which Underdog product, Classic Pick'em or Pick'em Champions, is actually live where they are, since the two carry different approvals. A reader in Iowa or Louisiana specifically gets a clean split: BetRivers works there, Underdog does not, full stop.

Neither company is presented here as a way to make money. Treat a deposit into either one as entertainment spending, not income. If gambling stops being entertainment, call 1-800-GAMBLER.

BetRivers vs Underdog — Frequently Asked Questions

Is BetRivers or Underdog legal in my state?

They run on separate maps because they are separate products. BetRivers Sportsbook is licensed and live in 15 states as of September 2026: Arizona, Colorado, Delaware, Illinois, Indiana, Iowa, Louisiana, Maryland, Michigan, New Jersey, New York, Ohio, Pennsylvania, Virginia, and West Virginia. Underdog’s Classic Pick’em runs under the state DFS exemption in roughly 15 states and is blocked outright in Connecticut, Hawaii, Idaho, Iowa, Louisiana, Maine, Montana, Nevada, and Washington. Iowa and Louisiana carry a BetRivers sportsbook and no Underdog product at all — a reader in either state gets one honest answer, not two.

Is BetRivers or Underdog more legit?

Both have a real paper trail, of different kinds. BetRivers is operated by Rush Street Interactive, a publicly traded company (NYSE: RSI) that also runs the land-based Rivers Casino chain, posting $370.4 million in Q1 2026 revenue, up 41% year over year. Underdog is privately held and paid the New York State Gaming Commission $17.5 million in March 2025 over 2020–2022 contests, exiting the state as part of that settlement, then went on to secure its own CFTC registrations for Underdog Predict in July 2026. A settlement a company pays and keeps operating past is a different story than one that shuts it down.

Can I use Underdog as a sportsbook instead of BetRivers?

No. Underdog ran a licensed real-money sportsbook for a stretch, then closed it nationwide in December 2025, settling every open North Carolina wager rather than chase more state licenses. BetRivers is the one of these two brands still taking that kind of wager, and only in the 15 states where it is actually licensed.

Does BetRivers offer DFS, or does Underdog offer casino games?

Neither. BetRivers is sportsbook-first with a much narrower online casino — Delaware, Michigan, New Jersey, Pennsylvania, and West Virginia only — and no pick’em product anywhere in the lineup. Underdog has no sportsbook or casino left; its live products are Classic Pick’em, the peer-to-peer Pick’em Champions, and the standalone Underdog Predict exchange. A reader assuming either brand covers the other’s category will come away disappointed.

Why do Iowa and Louisiana matter for this comparison specifically?

Because they’re the two states where the maps actually collide instead of just missing each other. BetRivers Sportsbook is live in both. Underdog blocks both outright — not just Classic Pick’em, the whole brand. A reader in Des Moines or Baton Rouge typing "Underdog Iowa" or "Underdog Louisiana" gets a real no, while the same search for BetRivers gets a real yes.

Is BetRivers safer than Underdog?

In a licensed BetRivers state, the safety case is a state gaming regulator, geolocation enforcing the state line, and standard tools like deposit limits and self-exclusion — the backstop any state-licensed sportsbook carries. Underdog’s safety case rests on a different foundation: a company with a settlement history it paid rather than fought, and federal registrations behind Predict, but no state gaming commission overseeing its core DFS product the way one oversees BetRivers’ sportsbook. Neither changes the math on the bet or the entry fee itself.