Upswing Poker The End Boss System
40 Hours of Training
Backed by Doug Polk & Fabian Adler’s 1000s of hours of strategic research & millions of dollars in winnings. You get a full walkthrough of the entire heads-up game tree.
Play Masterfully Preflop
Get battle-tested preflop ranges for all heads-up situations
Discover how Doug Polk adjusted his strategy en route to winning $1.2 million
Dominate Single Raised Pots In Position
Discover the “perfect” bet size for each flop
Know exactly when to follow through on the turn and river when they call you on the flop
Be prepared to handle check-raises from aggressive opponents
Master the less-studied situations where your opponents are making costly mistakes
Hang Tough & Profit in Single Raised Pots Out of Position
React properly when facing continuation bets on the flop, turn, and river
Discover the perfect situations to check-raise (and the hands that make the most money doing it)
Know exactly when to bet on the turn after your opponent checks back on the flop
Throw your opponent off balance and maximize value with tricky turn leads
Gain an Edge in 3-Bet Pots Out of Position
Make Your Opponent’s Life Miserable When Playing 3-Bet Pots In Position
Avoid Costly Mistakes in 4-Bet Pots
Cement Your Knowledge with Play & Explains from Doug & Fabian
What’s Inside The End Boss System?
The End Boss System is the longest course in Upswing Poker history with over 40 hours of content divided into 8 sections:
- Introduction (1 hour)
- Preflop Strategy (1 hour + Preflop Chart app)
- Small Blind Single Raised Pots (7 hours)
- Big Blind Single Raised Pots (8 hours)
- Big Blind 3-Bet Pots (8 hours)
- Small Blind 3-Bet Pots (5 hours)
- 4-Bet Pots (5 hours)
- Heads-Up Play & Explains (5 hours)
Sneak Peek Videos
Preview the course before buying (and get some free value) with the video clips below, each of which was taken directly from The End Boss System and Inside the Arena.
Doug Plays $100/$200
The course is rounded out by a series of Play & Explain videos, where you watch the coaches play/review sessions.
In this clip, Doug and Fabian review a $100/$200 session Doug played against a regular while preparing for his match versus Daniel Negreanu.
Small C-Bet Flops In Position
This one-two punch of preview clips is a good example of how The End Boss System is laid out.
First, Fabian covers the technical aspects of a situation — flops that warrant a 30% pot-sized c-bet in position. Then, Doug follows it up with a hand example and his own analysis to help cement your understanding of the spot.
Who is Fabian “Frabb” Adler?
Most people want to learn from a pro like Doug Polk, who has won millions of dollars in publicly tracked poker games.
But who does a pro like Doug turn to?
- When preparing for his challenge vs Daniel Negreanu, Doug wanted to find the best possible coach to help him maximize his win-rate.
- He ended up turning to Fabian “Frabb” Adler, who Doug praises as “the most brilliant poker mind I’ve ever met.”
- But you don’t have to take Doug’s word for it. Frabb has put up some incredible win-rates playing up to $50/$100 heads-up games. Here’s his graph:
- The key details are in the top left: $907K in winnings (over $1 million in all-in adjusted winnings) and a 7.45 BB/100 win-rate.
- Naturally, when it came time to build The End Boss System, Doug again turned to Frabb to help create the best possible course.




