Short Course Review — What You Actually Get
The Upswing End Boss System is a fully structured heads-up NLHE training program built around real high-stakes preparation, solver-backed frameworks, and practical execution.
This course is centered on the collaboration between Doug Polk and Fabian “Frabb” Adler — combining elite-level experience with deep theoretical understanding. The structure follows a progression from preflop construction into highly detailed postflop systems, including single-raised pots, 3-bet pots, and 4-bet pots.
You can Preview the course to see how concepts are explained through both theory and real hand application. Each concept is paired with practical examples, including high-stakes sessions and solver-driven breakdowns.
For full structure, files, and access, check the Details — this is not just a video course, but a complete HU system including charts, sheets, and analysis tools.
If you’re serious about heads-up or want to understand modern GTO vs exploit dynamics at the highest level — this course is built exactly for that.
👉 Get the End Boss System now
What Makes This Course Structurally Different
Unlike standard courses, this one is built as a system, not a collection of lessons.
- Preflop ranges are not just shown — they are tied to AI analysis and real match preparation
- Postflop is broken into repeatable decision trees (SRP / 3BP / 4BP)
- Heavy focus on bet sizing architecture (10% → overbet → pot)
- Includes both in-position and out-of-position frameworks
- Reinforced through real play, including $100/$200 sessions and solver comparisons
You’re effectively studying how a top pro prepares for elite-level HU battles — not just learning theory in isolation.
CONTENT OVERVIEW (FULL INDEX)
📂 UPSWING The End Boss System with Doug Polk & Fabian Adler
📄 Cash_-_Doug_HUNL_HUD.pt4hud (381.81 KB)
📄 Preflop Chart App.rar (32.84 MB)
📄 UPSWING THE END BOSS SYSTEM.jpg (109.00 KB)
📄 UPSWING THE END BOSS SYSTEM.psd (5.04 MB)
📄 indexGPT+html 📂 EPGio.py (3.65 KB)
📂 1. Introduction
📄 1. Intro to Fabian & Why Play Heads-Up.mp4 (98.66 MB)
📄 2. Old Course vs New Course.mp4 (109.34 MB)
📄 3. GTO vs Exploit & Solver Analysis.mp4 (84.51 MB)
📄 4. Crucial Strategic Simplifications.mp4 (88.56 MB)
📄 5. What’s to Come.mp4 (46.35 MB)
📂 2. Preflop Strategy
📄 1. Preflop Intro.mp4 (27.38 MB)
📄 2. Single Raised Pot Ranges.mp4 (50.16 MB)
📄 3. 3-Bet & Call 3-Bet Ranges.mp4 (82.87 MB)
📄 4. 4-Bet & 5-Bet Pot Ranges.mp4 (115.53 MB)
📄 5. Adjustments Versus Daniel Negreanu.mp4 (26.48 MB)
📂 Supremus AI Analysis
📄 1. The AI’s Preflop Strategy.mp4 (186.17 MB)
📄 2. Big Pots Played by the AI.mp4 (161.59 MB)
📄 3. Supremus Postflop Discussion.mp4 (46.59 MB)
📄 4. A Few More Cool Hands.mp4 (64.99 MB)
📄 5. Doug’s Stats vs Negreanu.mp4 (17.69 MB)
📄 6. Quick Note on the Supremus Hands.mp4 (8.71 MB)
📂 3. SB Single Raised Pots
📄 1. Facing River Check-Raise.mp4 (425.00 MB)
📂 1. C-bet
📄 1. Intro to C-Betting in SRP.mp4 (43.97 MB)
📄 10. Big (82% Pot) Big C-Bet Flops.mp4 (279.34 MB)
📄 11. Overbet (125% Pot) C-Bet Flops.mp4 (156.76 MB)
📄 12. Double Barreling.mp4 (296.69 MB)
📄 13. Triple Barreling.mp4 (181.47 MB)
📄 14. Triple Barrel Examples vs Negreanu.mp4 (329.48 MB)
📄 2. C-Bet Sizes Spreadsheet.mp4 (239.20 MB)
📄 3. Flop C-Betting Concepts.mp4 (33.17 MB)
📄 4. Analyzing your Own Betting Ratios.mp4 (242.25 MB)
📄 5. Very Small (22% Pot) C-Bet Flops.mp4 (112.26 MB)
📄 6. Small (30% Pot) C-Bet Flops.mp4 (289.32 MB)
📄 7. K-4-4 Flop vs Kevin Rabichow.mp4 (637.79 MB)
📄 8. Medium (42% Pot) C-Bet Flops.mp4 (252.16 MB)
📄 9. Two-Thirds (67% Pot) C-Bet Flops.mp4 (213.66 MB)
📂 2. After Flop Check
📄 1. Delay C-Bet Turn & Barrel River.mp4 (241.85 MB)
📄 2. Facing Turn Probe & River Follow Through.mp4 (364.89 MB)
📄 3. Raising Turn Probe.mp4 (117.42 MB)
📄 4. Raising River After Calling Turn Probe.mp4 (200.41 MB)
📄 5. Facing River Check After Calling Turn Probe.mp4 (99.13 MB)
📄 6. Double Delay & Facing Delay Probe.mp4 (349.31 MB)
📂 3. Facing Check-Raise
📄 1. Facing Flop Check-Raise Part 1.mp4 (307.32 MB)
📄 2. Facing Flop Check-Raise Part 2.mp4 (308.32 MB)
📄 3. Facing Turn Check-Raise.mp4 (164.74 MB)
📄 4. Facing River Check-Raise.mp4 (180.03 MB)
📂 4. BB Single Raised Pots
📄 1. BB Single Raised Pots Intro.mp4 (36.11 MB)
📄 6. Turn Leading.mp4 (224.28 MB)
📄 7. BB Single Raised Pot Hand Review.mp4 (440.57 MB)
📂 2. Facing C-Bet
📄 1. Facing C-Bet.mp4 (594.99 MB)
📄 2. Facing Flop C-Bet.mp4 (517.23 MB)
📄 3. Facing Turn Barrel.mp4 (235.39 MB)
📄 4. Facing River Barrel.mp4 (267.77 MB)
📂 3. Probe Bet
📄 1. Small Probe (42% Pot) Spots.mp4 (258.08 MB)
📄 2. Medium Probe (67% Pot) Spots.mp4 (175.15 MB)
📄 3. Big Probe (100% Pot) Spots.mp4 (271.38 MB)
📄 4. River Follow Through After Turn Probe.mp4 (183.37 MB)
📄 5. Delay Probe.mp4 (378.45 MB)
📂 4. Check-Raising
📄 1. Check-Raising vs Flop C-Bet.mp4 (537.30 MB)
📄 2. Check-Raising Turn vs Double Barrel .mp4 (281.43 MB)
📄 3. Check-Raising Turn Hand Review.mp4 (362.44 MB)
📄 4. Check-Raising River vs Triple Barrel.mp4 (276.28 MB)
📄 5. Check-Raising River Hand Review Part 1.mp4 (271.93 MB)
📄 6. Check-Raising River Hand Review Part 2.mp4 (274.21 MB)
📂 5. Remaining Delay Lines
📄 1. Facing Delayed C-Bet.mp4 (202.22 MB)
📄 2. Facing Double Delayed C-Bet.mp4 (229.64 MB)
📄 3. Check-Raise vs Turn Delayed C-Bet.mp4 (230.34 MB)
📄 4. Check-Raise vs Double Delayed C-Bet.mp4 (237.92 MB)
📂 5. Big Blind 3-Bet Pots Content
📄 2. Double Barreling.mp4 (335.15 MB)
📄 3. Triple Barreling.mp4 (347.01 MB)
📄 3BP Cbet Sheet (End Boss System).xlsx (510.06 KB)
📄 4. BB 3-Bet Pot Hand Review Part 1.mp4 (237.58 MB)
📄 5. BB 3-Bet Pot Hand Review Part 2.mp4 (220.62 MB)
📂 1. C-Bet in 3-Bet Pot
📄 1. Intro to 3-Bet Pot C-Betting.mp4 (16.23 MB)
📄 10. Big (80% Pot) C-Bet Flops.mp4 (124.99 MB)
📄 11. Pot-Sized C-Bet Flops.mp4 (310.32 MB)
📄 12. J-9-5 Flop vs Messere.mp4 (399.33 MB)
📄 13. Overbet Flops.mp4 (38.86 MB)
📄 2. Very Tiny (10% Pot) C-Bet Flops.mp4 (86.17 MB)
📄 3. Tiny (15% Pot) C-Bet Flops.mp4 (110.78 MB)
📄 4. Small (22% Pot) C-Bet Flops.mp4 (167.06 MB)
📄 5. Small (30% Pot) C-Bet Flops.mp4 (246.42 MB)
📄 6. Medium (42% Pot) C-Bet Flops.mp4 (158.57 MB)
📄 7. Half Pot C-Bet Flops.mp4 (246.07 MB)
📄 8. J-9-7 Flop vs Messere.mp4 (265.54 MB)
📄 9. Two-Thirds (67% Pot) C-Bet Flops.mp4 (358.99 MB)
📂 4. Facing Float Bet
📄 1 .Facing Flop Float Bet.mp4 (421.59 MB)
📄 2. Facing Turn Barrel After Calling Flop Float Bet.mp4 (490.25 MB)
📄 3. Facing River Barrel After Calling Flop Float Bet & Turn Barrel.mp4 (211.21 MB)
📂 5. Delay Lines with Doug
📄 1. Delay C-Bet After 3-Betting Part 1.mp4 (434.45 MB)
📄 2. Delay C-Bet After 3-Betting Part 2.mp4 (311.72 MB)
📄 3. Double Delay C-Bet After 3-Betting.mp4 (520.76 MB)
📂 6. Small Blind 3-Bet Pots Content
📄 1. Intro to SB 3-Bet Pots.mp4 (14.20 MB)
📄 2. Facing C-Bet in 3-Bet Pots.mp4 (606.70 MB)
📄 3. Facing Turn Barrel.mp4 (491.76 MB)
📄 4. Facing River Barrel.mp4 (326.98 MB)
📄 5. Facing Flop Check.mp4 (370.43 MB)
📄 6. Barreling Turn vs Flop Check.mp4 (282.54 MB)
📄 7. Triple Barreling vs Flop Check.mp4 (190.82 MB)
📄 9. SB 3-Bet Pot Hand Review.mp4 (339.63 MB)
📂 8. Delay Lines with Doug
📄 1. Intro to Delay & Double Delay Lines in 3-Bet Pots IP.mp4 (26.44 MB)
📄 2. 9-9-4 Flush Draw.mp4 (257.44 MB)
📄 3. A-5-3 Rainbow.mp4 (267.83 MB)
📄 4. Q-9-5 Flush Draw.mp4 (152.28 MB)
📄 5. More Delay & Double Delay Examples.mp4 (362.33 MB)
📂 7. 4-Bet Pots Content
📄 4BP Sheet (End Boss System).xlsx (378.40 KB)
📂 1. In Position
📄 1. Intro to SB 4-Bet Pots.mp4 (20.78 MB)
📄 2. Flop C-Bet.mp4 (290.09 MB)
📄 3. Turn Barreling.mp4 (255.94 MB)
📄 4. Triple Barreling.mp4 (170.69 MB)
📄 5. Facing Turn Probe.mp4 (176.31 MB)
📄 6. Delay Lines for Turns & Rivers Part 1.mp4 (286.67 MB)
📄 7. Delay Lines for Turns & Rivers Part 2.mp4 (267.82 MB)
📄 8. SB 4-Bet Pot Hand Review.mp4 (294.97 MB)
📂 2. Out of Position
📄 1. Facing C-Bet.mp4 (280.87 MB)
📄 2. Facing Turn Barrel.mp4 (232.07 MB)
📄 3. Facing Triple Barrel.mp4 (176.68 MB)
📄 4. Leading Flop.mp4 (180.19 MB)
📄 5. Probing Turn.mp4 (240.01 MB)
📄 6. River Follow Through After Probing Turn.mp4 (171.50 MB)
📄 7. Delay Probe.mp4 (197.39 MB)
📄 8. BB 4-Bet Pot Hand Review.mp4 (342.94 MB)
📂 8. Heads-Up Play and Explains
📄 1. Fabian Plays $5$10 Zoom.mp4 (516.59 MB)
📄 2. Fabian Plays vs Lucid GTO Trainer.mp4 (325.32 MB)
📄 3. Doug Plays $100$200 vs EarvinMagic Part 1.mp4 (438.97 MB)
📄 4. Doug Plays $100$200 vs EarvinMagic Part 2.mp4 (411.16 MB)
📄 5. Doug Plays $100$200 vs EarvinMagic Part 3.mp4 (349.32 MB)
📄 6. Member Footage Doug Reviews $2.50$5 Session Part 1.mp4 (209.49 MB)
📄 7. Member Footage Doug Reviews $2.50$5 Session Part 2.mp4 (268.03 MB)
📄 8. Member Footage Doug Reviews $2.50$5 Session Part 2.mp4 (299.89 MB)
📄 9. Course Conclusion.mp4 (72.62 MB)
📂 End Boss System Notepad Strategy Sheets
📄 IP 3BP XB.txt (1.03 KB)
📄 IP 3BP XX XB.txt (124.00 B)
📄 IP 4BP.txt (838.00 B)
📄 IP SRP C-Bet Size.txt (2.21 KB)
📄 IP SRP XBC XB.txt (632.00 B)
📄 IP SRP XBC XBC XB.txt (506.00 B)
📄 IP SRP XX BC BR.txt (896.00 B)
📄 IP SRP XX BC X Size.txt (207.00 B)
📄 IP SRP XX BR.txt (291.00 B)
📄 IP SRP XX XB.txt (168.00 B)
📄 IP SRP XX XX XB.txt (337.00 B)
📄 OOP 3BP B.txt (2.60 KB)
📄 OOP 3BP XX B.txt (143.00 B)
📄 OOP 4BP XX B.txt (222.00 B)
📄 OOP 4BP XX XX B.txt (173.00 B)
📄 OOP 4BP.txt (766.00 B)
📄 OOP SRP XBC B.txt (398.00 B)
📄 OOP SRP XBC XBC XBR.txt (234.00 B)
📄 OOP SRP XBC XBR.txt (366.00 B)
📄 OOP SRP XBR Size.txt (553.00 B)
📄 OOP SRP XX XBR.txt (260.00 B)
📂 Preflop Chart App
📂 NASA preflop ranges in txt
Strategic Breakdown — Who This Course Is For
This is not an entry-level product.
It is designed for:
- Players transitioning into heads-up specialization
- Mid/high-stakes grinders improving postflop precision
- Players studying solver outputs + real-game execution
- Anyone preparing for high-pressure HU environments
Key focus areas:
- Range vs range interaction
- Bet sizing as a strategic weapon
- Delay lines and non-standard aggression
- Exploit adjustments layered on GTO baseline
