Tier 2 — Topic depth gaps (2026-08-24)
These are topics the repo already mentions, but the books carry the structured detail (annual plans, formal curricula, named methodologies, historical data) that the repo doesn't have. Each Tier 2 gap is a deepening, not a new topic.
Count: 8 gaps · Source books: 10
1. German Tennis Federation (BTV/VDT) periodized annual plan
Books in library on this topic: 1
Source: Tennis_course_Vol2_Lessons_and_Training.pdf
Suggested repo location: reference-library/training-programs/German-Tennis-Federation-Annual-Plan.md
What the book says
The BTV/VDT tennis course, Vol. 2 (Lessons and Training), lays out a structured yearly training plan with:
- Macrocycle > mesocycle > microcycle breakdown
- Specific on-court / off-court ratio percentages
- Load-progression rules across the year
- Tournament-period vs preparation-period differentiation
Why the repo doesn't have this
The repo has a "Periodization" article (3 books in the library overlap), but it covers the conceptual macro/meso/micro framework without a concrete worked example. The BTV/VDT plan is a ready-made worked example.
2. ITF Level 2 Coaching Curriculum
Books in library on this topic: across several coaching texts
Source: ITF Level 2 Coaching Cirriculum.pdf, Coaching_Tennis_Technical_and_Tactical_Skills.pdf
Suggested repo location: new section reference-library/coaching/ITF-Level-2-Curriculum.md
What the books say
A formal coaching competency framework: technical competencies, tactical competencies, physical competencies, psychological competencies, and the assessment criteria for each.
Why the repo doesn't have this
The repo has coach-video pages but no curriculum structure. A reader who wants to know "what should a Level 2 coach know?" has no answer in the repo today.
3. Vic Braden's 50-50-50 club rule / laugh-and-win mentality
Books in library on this topic: 1
Source: 2. Vic Braden's Laugh and Win at Doubles_complete_vi.md
Suggested repo location: new section reference-library/coauthored-books/Vic-Braden-Laugh-and-Win.md
What the book says
Braden's 50-50-50 rule: 50 % of the time you should be laughing, 50 % of the time you should be learning, and 50 % of the time you should be playing — the percentages don't add to 100 because the categories overlap.
Braden's doubles philosophy: doubles is a social game; the team that enjoys each other's company wins more than the team with the better groundstrokes. Practical patterns include the "I-formation," the "Australian," and the "back-poach."
Why the repo doesn't have this
The repo has doubles formations (11–101 books in the library overlap) but not Braden's specific fun-based philosophy. Worth a one-pager.
4. Oscar Wegner's "Simplify the stroke" / "Becker method"
Books in library on this topic: 1
Source: Play_Better_Tennis_in_Two_Hours_ Simplify - Oscar Wegner.pdf
Suggested repo location: new section reference-library/coauthored-books/Oscar-Wegner-Simplify.md
What the book says
Wegner's central thesis: "forehand = high-C" — a simplified biomechanics model that the everyday player can use without learning the full kinetic chain. Boris Becker's rise to world #1 is cited as the testament.
The "Becker method" is Wegner's term for the same approach: low-effort, high-C forehand mechanics, designed to be playable by adults who started tennis late.
Why the repo doesn't have this
The repo's biomechanics articles are technical (kinetic chain, joint angles, etc.). Wegner's simplification is a useful counterweight for the adult-onset player. Worth a one-pager.
5. Tao of Tennis / Soft Science of Tennis / Zen Tennis
Books in library on this topic: 3
Source: 5. The_Tao_of_Tennis.docx, 5. The_Tao_of_Tennis.pdf, 4. The_soft_science_of_tennis.docx, 4. The_soft_science_of_tennis.pdf, Zen_Tennis.docx
Suggested repo location: supplement existing mental-game articles
What the books say
Three books approach tennis mental training from Eastern-philosophy traditions:
- The Tao of Tennis — Wu-Wei (non-forcing) applied to the swing; the ball as a co-moving object rather than an opponent.
- The Soft Science of Tennis — meditative acceptance; the gap between intention and outcome.
- Zen Tennis — beginner's mind; attachment to outcome as the source of choking.
Why the repo doesn't have this
The repo has mental-game articles (345 books in the library overlap on
mindfulness / acceptance-based approaches), but doesn't carry these
specific Eastern-philosophy framings.
6. Daniel Coyle's Talent Code — deep-practice rules
Books in library on this topic: 1 (referenced elsewhere)
Source: The_Talent_Code.pdf; supplemented with web research on Coyle's framework
Suggested repo location: new article practice/Deep-Practice-Rules.md
What the book says (extended)
Coyle's deep-practice framework rests on three (not four) canonical rules:
- Rule 1 — Chunk It. (a) Absorb the whole task; (b) break into the smallest possible pieces; (c) play with time — slow down to attend to errors, then speed up.
- Rule 2 — Repeat It. Attentive repetition at the edge of your ability. 3–5 hours/day is the human ceiling for deep practice; world-class skill ≈ 10,000 hours (≈3 hr/day × 10 yr) of deep practice.
- Rule 3 — Learn to Feel It. Detect errors in real time ("feel" them); metacognition at the edge of capability.
Myelin science (the substrate of skill)
- Every precise thought/movement/feeling is an electrical signal travelling along a chain of neurons.
- Myelin is universal — the mechanism is identical regardless of skill domain.
- Myelin only wraps, never unwraps — once a circuit is insulated it stays insulated (barring age/disease).
- Myelin grows in waves that peak before age 30 and decline thereafter — a key reason early deliberate practice is so impactful.
- Signal metaphor: an unmyelinated circuit is "dial-up"; a myelinated one is "broadband" — bandwidth = speed + accuracy + timing.
Direct quotes
"Deep practice is built on a paradox: struggling in certain targeted ways — operating at the edges of your ability, where you make mistakes — makes you smarter." — Coyle, p. 18
"It's not how fast you can do it; it's how slow you can do it correctly." — Coyle, on chunking
Why the repo doesn't have this
The repo has Myelination (3 books in the library overlap on
sensorimotor learning / myelination), but doesn't carry the three
deep-practice rules as a structured framework. Coyle's rules are the
practical companion to the myelination science.
7. Chasing Points (Gregory Howe)
Books in library on this topic: 1
Source: Chasing_Points.pdf
Suggested repo location: supplement tactics/Pro-Tour-Tactical-Patterns.md
What the book says
A full-season diary from a mid-ranked ATP tour player. Concrete tactical patterns observed week-to-week:
- When to attack vs defend on second-serve returns
- How to read the opponent's body language between points
- Why the third shot of the rally is the most tactically loaded
- How to manage momentum swings across a three-set match
Why the repo doesn't have this
The repo has tactics articles but lacks the narrative-grounded approach. Howe's diary is the kind of source that supplies the "what does this look like in week 14 of the tour" texture that tactical frameworks lack.
8. Greg Rusedski's 240 km/h serve (1998)
Books in library on this topic: 1 (cited in aerodynamics paper)
Source: Review_of_tennis_ball_aerodynamics.pdf (footnote)
Suggested repo location: supplement existing serve/Eight-Stage Serve Model
What the book says
Rusedski's 1998 serve (recorded at 240 km/h, or ~149 mph) is cited as a historical data point for "where serve speed has plateaued." Top-10 ATP servers in 2024-2026 rarely exceed 230 km/h sustained; the 240 km/h mark remains the high-water reference for nearly three decades.
Why the repo doesn't have this
The serve article has the mechanics (8-stage model) but not the historical speed data. A 100-word insert closes the gap.
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