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The United Tennis Handbook — English¶

The complete biomechanical framework for consistent, powerful tennis — 30 chapters, 12 variables, 5 strokes, one integrated system.

The CORE Chain¶

Q → V → ROOT → F → P → T → SSC → 8 → 45° → BRAKE → PULSE → JIN

Quiet Eye → Vestibular → Rooting → Fascia → Proprioception → Tensegrity → SSC → Figure-8 → 45° Plane → Brake → Pulse → Jin

Every variable is a link. Break one, and the chain fails. Master all twelve, and the stroke becomes inevitable.

Part I: Foundation (Chapters 1-7)¶

ChapterTitleFocus
1The ProblemCourt position & ball height decide face angle
2The ToolGrip as face-angle delivery system
3The PrecisionContact point geometry
4The OutcomeFace angle = ball flight
5The Energy StoreTakeback as elastic loading
6The TransmissionTension management through the chain
7The CORE SystemIntegration of the first six variables

Part II: Sensory-Motor (Chapters 8-11)¶

ChapterTitleFocus
8Quiet EyeVisual fixation & external focus
9Vestibular Stability & VORHead stability, gaze control
10Fascia & ProprioceptionSpiral/Back lines, 4ms palm feedback
11TensegrityBones float, myofascia holds

Part III: Engine (Chapters 12-15)¶

ChapterTitleFocus
12Stretch-Shortening CycleLoad → fire. The engine.
13Figure-8 RegulationOne continuous loop. Size = power.
1445° Swing PlaneOblique plane — drive + spin
15Braking & Impulse1-inch stop. 1-inch pulse.

Part IV: Expression (Chapters 16-18)¶

ChapterTitleFocus
16JinTing-Hua-Fa. Internal power.
17Hu Thuc FootworkReal/empty steps. Yin/Yang.
18RootingGround connection. Brake base.

Part V: Strokes (Chapters 19-25)¶

ChapterTitleFocus
19Forehand Push SystemSpiral Line pressurization
201H Backhand SaberBack Line + lat stretch
212H Backhand HybridPush + Saber blend
22ServeIsolated kinetic chain
23Return of ServeHua Jin — absorb & redirect
24Volley & OverheadShort swing, stable face
25Slice, Drop Shot & LobTouch, disguise, geometry

Part VI: Strategy (Chapters 26-27)¶

ChapterTitleFocus
26Court Geometry & Shot SelectionAngles, percentages, targets
27Singles Patterns & Doubles SystemsSystems, not isolated shots

Part VII: Complete (Chapters 28-30)¶

ChapterTitleFocus
28MentalRoutine, pressure, visualization
29PhysicalFitness, periodization
30The Unified SystemAll 12 variables as one chain

Visual Library¶

Every chapter includes 5 custom diagrams/photos (150+ total):

  • Infographics: CORE loop, tensegrity tent, figure-8 paths
  • Biomechanical: 3D contact zones, kinetic chains, force vectors
  • Photos: Grip comparisons, contact points, footwork sequences
  • Diagnostics: Fault trees, fault-signal cards, self-check tools

Browse Visual Library →

Train the System¶

OptionWhat You Get
FreeCORE Diagnostic, Start Here guide, Visual Library access
MemberFull chapter access, drills library, video breakdowns, community
Coaching1:1 biomechanical analysis, custom program, AI Coach access

Join the Lab →

🇻🇳 Vietnamese Version →

The court doesn't lie. The ball doesn't care about your intentions. It only responds to physics. This system makes physics work for you.