Online poker tournament prize pools have grown far beyond what anyone expected a decade ago. What started as a niche corner of the internet now produces single events with eight-figure guarantees, drawing thousands of players from around the world. For US players in particular, 2026 has brought a new high-water mark — the Winning Poker Network and Chico Network both run events that rival anything in regulated markets.
Whether you are a seasoned grinder looking for the next major series or a newer player planning your first shot at a big tournament, this guide ranks the largest online poker tournaments available in 2026 by guaranteed prize pool, with schedules, buy-ins, and the satellite paths that make them accessible at every bankroll level.
The Biggest Online Poker Tournaments in 2026
The table below ranks the largest guaranteed online poker tournaments accessible to US players, along with key international events for context.
| Tournament | Network/Site | Buy-in | Guarantee | Frequency | Satellites Available |
|---|---|---|---|---|---|
| Venom | WPN / ACR Poker | $2,650 | $12,500,000 | 2x per year | Yes — from $0 (freerolls) |
| OSS Cub3d Main Event | WPN / ACR Poker | $1,050 | $3,000,000 | 3x per year | Yes — from $1 |
| MOSS Main Event | WPN / ACR Poker | $215 | $1,000,000 | 3x per year | Yes — from $1 |
| Sunday Special | Chico / BetOnline | $200 | $200,000 | Weekly | Yes — from $5 |
| Sunday Major | Chico / TigerGaming | $100 | $100,000 | Weekly | Yes — from $3 |
| Sunday Warm-Up | WPN / Black Chip Poker | $109 | $75,000 | Weekly | Yes — from $1 |
| WSOP Online Main Event | GGPoker (international) | $5,000 | $25,000,000 | Annual | Yes — from $1 |
Note: GGPoker events are included for context but are not available to most US players. The remaining events are open to US players through the sites listed on our US poker page.
ACR Venom — $12.5 Million Guaranteed
The Venom at ACR Poker is the single largest online poker tournament available to American players. With a $12.5 million guarantee and a $2,650 buy-in, it consistently draws fields of 5,000+ entries across multiple Day 1 flights. First place typically exceeds $1 million, and the prize pool regularly surpasses its guarantee.
What makes the Venom stand out beyond its sheer size is the satellite structure. ACR runs Venom satellites starting from $0 — dedicated freerolls feed into sub-satellites, which feed into direct qualifiers. Players have turned a zero-dollar investment into a $2,650 seat and then a six-figure payday. The satellite chain typically begins 8-10 weeks before each Venom event.
The Venom runs twice per year, with events historically scheduled in spring and fall. ACR also offers rakeback through the Elite Benefits program, and the 27% rakeback available at Black Chip Poker on the same network makes satellite grinding even more cost-effective.
WPN Tournament Series — OSS and MOSS
Beyond the Venom, the Winning Poker Network runs two recurring tournament series that rank among the biggest in online poker.
Online Super Series (OSS Cub3d) runs three times per year with total series guarantees exceeding $25 million across all events. The marquee event is the $1,050 buy-in Main Event with a $3,000,000 guarantee. The full OSS schedule spans two to three weeks and includes events at every buy-in level, from $5.50 micro tournaments through the Main Event. ACR Poker, Black Chip Poker, and Ya Poker all provide access to OSS events.
Mini Online Super Series (MOSS) mirrors the OSS structure at lower buy-ins, with a $215 Main Event carrying a $1,000,000 guarantee. MOSS is designed for mid-stakes players and those building a bankroll toward the OSS. The series features buy-ins from $1 to $215, making it one of the best value propositions in online poker tournaments for players at the low-stakes and mid-stakes levels.
Both series run satellite schedules starting weeks in advance, with Step tournaments that let you climb from micro buy-ins to Main Event seats.
Chico Network Sunday Majors
The Chico Poker Network — home to BetOnline, TigerGaming, and Sportsbetting.ag — takes a different approach. Rather than marquee standalone events, Chico builds its tournament offering around a strong weekly schedule anchored by Sunday majors.
The flagship is the $200 buy-in Sunday Special at BetOnline, which carries a $200,000 guarantee. TigerGaming runs a $100 buy-in Sunday Major with a $100,000 guarantee on the same network. Because Chico is known for its softer player pools, these Sunday events attract a mix of recreational and serious players — which translates to higher expected value per dollar invested compared to equivalent events on tougher networks.
Satellites into the Sunday majors run throughout the week starting from $3-$5 buy-ins. BetOnline's 100% deposit bonus up to $1,000 and TigerGaming's similarly generous welcome offer can effectively subsidize your satellite grinding.
International Context — GGPoker WSOP Online
For players outside the United States, GGPoker hosts the official WSOP Online bracelet events, including a Main Event with a $25,000,000 guarantee and a $5,000 buy-in. The WSOP Online series runs annually in the summer alongside the live World Series in Las Vegas, and it has become the largest online poker event series in the world by total prize money.
However, GGPoker is not available to players in the US or many other restricted jurisdictions. American players looking for comparable action should focus on the WPN and Chico Network events listed above. For a broader look at which poker networks serve which regions, see our network comparison guide.
How to Satellite Into Major Events
You do not need a large bankroll to play in the biggest online poker tournaments. Every major event listed above offers a satellite path that starts at a fraction of the main buy-in — and in many cases, from free entry.
Start with freerolls. Both ACR Poker and BetOnline run daily freerolls that feed directly into satellite chains for their biggest events. These carry no risk and provide a genuine path from zero to a major tournament seat.
Use deposit bonuses strategically. A first-deposit bonus effectively gives you extra satellite buy-ins. BetOnline's 100% match up to $1,000, Sportsbetting.ag's welcome offer, and ACR Poker's bonus package all release bonus funds as you play — including in satellites and low-stakes events.
Follow proper bankroll management. Taking shots at satellites is smart; risking your entire roll on one event is not. Our bankroll management guide covers how to allocate a portion of your bankroll to satellite play without jeopardizing your regular game. A common approach is dedicating 5-10% of your total bankroll to satellite attempts for a single major event.
Study tournament strategy. Satellites reward a specific skill set — especially bubble play and ICM awareness. Review our poker strategy guide for tournament-specific concepts, and consider the differences between satellite play and standard Texas Hold'em or Omaha MTT strategy.
FAQ
What is the biggest online poker tournament in 2026?
The ACR Venom at ACR Poker on the Winning Poker Network is the biggest online poker tournament available to US players in 2026, with a $12,500,000 guaranteed prize pool and a $2,650 buy-in. Internationally, GGPoker's WSOP Online Main Event carries a $25,000,000 guarantee but is not accessible from the United States.
Can I play in big online poker tournaments from the US?
Yes. The Winning Poker Network — accessible through ACR Poker, Black Chip Poker, and Ya Poker — and the Chico Network — accessible through BetOnline, TigerGaming, and Sportsbetting.ag — both accept US players and run major guaranteed tournaments year-round.
How much does it cost to enter the Venom tournament?
The direct buy-in for the Venom is $2,650. However, satellites run from as low as $0 through freerolls and Step tournaments starting at $1. Many Venom champions have qualified through satellite paths, spending a fraction of the direct buy-in to earn their seat.
What is the difference between OSS and MOSS at ACR Poker?
The Online Super Series (OSS Cub3d) is the flagship series with higher buy-ins, headlined by a $1,050 Main Event with a $3,000,000 guarantee. The Mini Online Super Series (MOSS) mirrors the same structure at lower buy-ins, with a $215 Main Event carrying a $1,000,000 guarantee. Both run three times per year and share the same satellite infrastructure on the Winning Poker Network.