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Kalshi vs BetRivers

BetRivers is a regional book operating in 15+ states, owned by Rush Street Interactive. Often the best-line book on baseball moneylines and small-market hockey.

Platform profiles at a glance

Founding, scale, regulation, fees, payments — both venues side-by-side. Updated 2025-Q4 from public filings, official sites, and third-party trackers.

Kalshi

The federally regulated US event-contract exchange

prediction market

Kalshi is a CFTC-licensed Designated Contract Market (DCM) where US users buy and sell YES/NO contracts on real-world events, including sports, in all 50 states.

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Founded2018 · Tarek Mansour, Luana Lopes Lara
HQNew York, NY
CEOTarek Mansour
Employees~150 (2025)

Regulation

RegulatorCommodity Futures Trading Commission (CFTC)
StatesAll 50 US states

Scale · 2025-Q4

Monthly volume~$200M+ (sports + politics combined, peaks during major events)
Annual volume$1B+ (2024 — driven by ~$430M on the US presidential market alone)
UsersHundreds of thousands of funded accounts (exact figure not publicly disclosed)

Funding

Total raised$50M+ across Series A–C
Last roundSeries C reported 2025
Last round sizeUndisclosed (Series A was $30M)
Valuation~$2B (reported, 2025)
Key investorsSequoia Capital, Henry Kravis (KKR co-founder), Charles Schwab, Y Combinator, SV Angel

Product

Fees0.07% per side, capped at 7¢/contract; 2¢ near 50% probability
Min position$0.01 (1 contract × $0.01–$0.99 YES/NO)
Max positionLimited only by orderbook depth — no per-user account caps
SettlementUSD
Withdrawal1–3 business days via ACH; same-day for wire
MobileiOS (App Store), Android (Google Play)
PaymentsACH (Plaid) · Debit card · Wire transfer (high-volume)

BetRivers

Rush Street's regional sportsbook with strong loyalty

sportsbook

BetRivers is the online sportsbook of Rush Street Interactive (NYSE: RSI), parent of the Rivers Casino chain, known for strong regional presence and the iRush Rewards loyalty program.

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Founded2018 · Neil Bluhm (Rush Street Gaming founder)
HQChicago, IL
CEORichard Schwartz
Employees~1,500 (Rush Street Interactive)
Public tickerNYSE: RSI
ParentRush Street Interactive, Inc.

Regulation

RegulatorState gaming commissions
States15+ US states

Scale · 2025-Q4

Monthly volumeHandle ~$400–600M/month
Annual volume~$5B+ annual handle
Users~700k+ US monthly active

Funding

Total raisedPublic via SPAC merger 2020
Last rounddMY Technology SPAC merger Dec 2020
Last round size~$160M
ValuationMarket cap typically $1–3B
Key investorsPublic markets (NYSE), Rush Street Gaming

Product

FeesVig ~4–5% on moneylines
Min position$1 minimum bet
Max positionVariable; competitive limits in regional markets
SettlementUSD
Withdrawal1–5 business days ACH
MobileiOS, Android
PaymentsACH · Debit card · PayPal · Play+ prepaid

Feature-by-feature comparison

Side-by-side dimensions that matter when choosing between Kalshi and BetRivers. Volumes are best-effort estimates as of 2025-Q4.
DimensionKalshiBetRivers
Categoryprediction marketsportsbook
Founded20182018
HeadquartersNew York, NYChicago, IL
RegulatorCommodity Futures Trading Commission (CFTC)State gaming commissions
States availableAll 50 US states15+ US states
Monthly volume~$200M+ (sports + politics combined, peaks during major events)Handle ~$400–600M/month
Annual volume$1B+ (2024 — driven by ~$430M on the US presidential market alone)~$5B+ annual handle
Total raised$50M+ across Series A–CPublic via SPAC merger 2020
Reported valuation~$2B (reported, 2025)Market cap typically $1–3B
Parent companyIndependentRush Street Interactive, Inc.
Public tickerPrivateNYSE: RSI
Fee structure0.07% per side, capped at 7¢/contract; 2¢ near 50% probabilityVig ~4–5% on moneylines
Min position$0.01 (1 contract × $0.01–$0.99 YES/NO)$1 minimum bet
Max positionLimited only by orderbook depth — no per-user account capsVariable; competitive limits in regional markets
SettlementUSDUSD
Withdrawal1–3 business days via ACH; same-day for wire1–5 business days ACH
PaymentsACH (Plaid), Debit card, Wire transfer (high-volume)ACH, Debit card, PayPal (+1 more)
Mobile appsiOS (App Store), Android (Google Play)iOS, Android
Product categoriesSports, Politics, Climate, Economics (+2 more)Sports betting, iGaming/casino, Horse racing (some states)

Use Kalshi when…

  • US users in states where sportsbooks aren't licensed (CA, TX, HI)
  • Sharp users who get limited at FanDuel/DraftKings
  • Anyone who wants no-vig pricing on championship/MVP/season-long markets
  • Traders who want to short an outcome (sell YES) without needing to find the opposite-side book

Use BetRivers when…

  • Users in Rush Street Casino regional markets (Pittsburgh/Philly area)
  • Cashback-loyalty users (iRush Rewards is competitive)

BetRivers strengths

  • Frequently the cheapest book on MLB moneylines
  • iRush Rewards (slot crossover)
  • Decent boosts on regional teams

BetRivers weaknesses

  • Smaller market depth than DraftKings/FanDuel
  • Live betting UI feels dated
  • Limit aggressive winners

Where Kalshi beats BetRivers

  • Wider market depth (every Kalshi user is liquidity)
  • No vig — consistent across every market type

FAQ: Kalshi vs BetRivers

Is BetRivers good for arbing against Kalshi?

BetRivers's slower lines on regional markets sometimes create wide gaps vs Kalshi — good arb opportunities on MLB and NHL specifically.

Sources and further reading

All figures best-effort as of 2025-Q4. Funding, valuations, and volume are sourced from public filings, official communications, and third-party trackers (Crunchbase, Wikipedia). Re-verify against primary sources before quoting in compliance-sensitive contexts.

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