The coaching method

The question the method answers

The theory of control explains the exchange between two grapplers. The coaching method answers a different question:

What should a coach repeatedly do to change a particular athlete's probability of winning under declared constraints?

The word that matters is repeatedly. The method is a closed loop, run again and again, and it is universal in its process rather than in what it produces: two coaches running it on two athletes should arrive at different technical content by the same kind of process.

Model the athlete, and separately the opponent

The loop runs on a model of the athlete, and the model is deliberately not a number. It holds what this athlete is physically constrained from doing, what they can execute reliably, what they recognise, how they select, what technical repertoire and connected systems they have, what they can reach, force and preserve, how robust they are under resistance and disruption, how their game transfers across rulesets, their fatigue and injury constraints, their learning state and capacity for autonomy, and their preferences, style and technical history. No single figure stands in for that profile, and the method treats an athlete who has been reduced to one as unmodelled.

The opponent gets a model of their own, named or as a population: likely attacks, controls, transitions and reactions, strategic routes, how they exploit the rules, their constraints, and the uncertainty around all of it. Where no named opponent exists, the field the athlete is likely to meet stands in. The two models are kept apart because a plan built from one of them alone is a plan for a different fight.

Diagnose before you prescribe

An athlete keeps getting passed from half guard. The instinctive response is to teach a new half-guard technique, and the method forbids that instinct until the failure has been placed. For any observed failure, the question is which of nine classes is limiting the athlete: availability, capability, observation, selection, enforcement, viability, the opponent’s contribution, value and context, or robustness.

Placed, the same failure becomes four different problems. The underhook was never available because the passer’s crossface arrived first: an availability problem, and the fix is earlier. The underhook was available and the athlete cannot yet execute it against a heavy partner: a capability problem. They can execute it and did not see the moment: an observation problem. They saw it and chose to hold the knee shield instead: a selection problem. From outside, all four look like the same passed guard. A coach must not assume a new technique is the answer before determining which class, or which combination, is actually limiting performance.

Choose the target without one scale

Once the problems are placed, one has to be chosen, and the method is exact about how. Nine considerations enter the judgement: the competitive value if the problem improved; how often and how badly it fails; how reachable meaningful improvement is; the time it would take against the athlete’s horizon; how far the improvement transfers across likely opponents; what other capabilities it depends on; the fit with this athlete; the training-time and fatigue cost; and the risk. None of them is combined into a weighted score, a fixed numerical weighting or a universal ranking. There is no mastery score, no gate-debt total and no readiness percentage, and the theory rules those out rather than merely omitting them.

What replaces the score is a non-dominated set. The coach first removes candidates that are inadmissible under the declared constraints or clearly dominated by another candidate on every consideration that matters. If one admissible candidate is clearly preferred, it is the target. If several remain genuinely incomparable, the coach makes an explicit provisional judgement among them, records why, what is uncertain, and what evidence would change the choice, and revisits it when the evidence arrives. “Highest-value realistically changeable problem” means the preferred admissible target that process produces, and it never means that every coaching problem sits on one hidden scale.

Two things follow that a coach can feel tomorrow. Priority is value- and constraint-driven, never syllabus-gap-driven: “we have not covered turtle yet” is not a reason. And the decision about what to work on belongs to this loop, not to the curriculum, the rank, or the templates.

Build the solution, then compress it

For a selected problem the coach may refine a solution the athlete already has, import a known technique or concept, synthesise a combination, delete a fragile branch, build a response-conditioned system, or create a variation specific to an opponent or a ruleset. Where none of that is adequate the method runs a research loop: define the technical problem, inspect the constraints on both athletes, search existing exemplars, keep the provenance, test the mechanics, test the opponent’s responses, reject the non-viable branches, integrate the useful ones, stress-test them in representative practice and reassess in rolling. Several valid solutions may coexist for one problem and one athlete.

The solution then has to be put in a form the athlete can use, and the method treats every such form as an interface rather than as a fact about grappling. The same underlying problem can be presented as any of these:

• named position;
• named system;
• decision tree;
• dilemma/reaction map;
• problem-solution map;
• portable control abstraction;
• cue set;
• athlete-specific policy;
• competition plan;
• curriculum stage.

The front-headlock problem can be a named position for one athlete, a two-branch decision tree for another, and a single cue for a third, without any of the three changing what the problem is. Choosing the compression is a coaching act, and getting it wrong is a common way a correct diagnosis fails to land.

Pick the mode, and separately the autonomy

The method prescribes no pedagogy. Explicit instruction, demonstration, drilling, variable drilling, situational practice, constraints-led tasks, guided discovery, live problem solving, technical troubleshooting, video analysis, self-directed work and high-autonomy experimentation are all available, and which one is used depends on the athlete’s state, the objective, their competence, the kind of error and the time to the event. In delivery terms the modes are explicit instruction, technical seeding, representative learning, a hybrid, diagnostic assessment and athlete-led work.

The mode and the autonomy are two dials, adjusted independently. A purple belt can receive dense explicit instruction on a new entry while owning the whole plan around it; a beginner can be in representative learning with the coach organising every task. Being told a great deal and being in charge are not opposites. And prescriptive technical exposure is legitimate wherever the loop selects it: a beginner needs a concrete common trunk, safe recognition of a threat requires being shown it, and an athlete who has no adequate solution may need one seeded rather than be left alone with the problem.

Make practice representative

A practice task is specified, not improvised: its start state, objective, legal actions, partner role, the information available, the opposition, the failure condition, the success condition, the duration, the intensity, the volume and the recovery. Representativeness is the degree to which the task puts the actual problem under the actual pressure, and it is distinct from maximal intensity: a full-speed round in which the problem never arises is less representative than a twenty-second task that starts at the moment it does.

Difficulty is progressed by turning the same dials: the partner’s skill and style, the resistance, the starting disadvantage, which reactions are available, how wide the task is, the time pressure, the fatigue and the rule constraints. The aim is the edge of capability, set so that failure is informative rather than inevitable. And the evidence rule is firm: representative interaction is mandatory whenever the claim is that the athlete can do something live, adapt it or transfer it. A technical rehearsal cannot be relabelled as live transfer evidence.

Let the evidence change the decision

Assessment in this method has one test: it must change a coaching decision. It may look at successful execution, enforceability under resistance, defensive viability, the response to disruption, recovery after failure, transfer across opponents and rulesets, decision quality, robustness under fatigue, and whether a known failure mode is recurring. It may be qualitative or quantitative and it stays multi-dimensional. Locally, each capability is judged on five things kept separate: recognition, execution, adaptation, retention and transfer.

Rolling and competition feed the model as field feedback. They reveal new failure modes, update the opponent model, change priorities, expose fragile success and generate research questions. Wins and losses are evidence and are never treated as proof that the coaching caused them. Capture is sparse on purpose: the coach comes first and the record second, and there is no dossier to fill in after every round. A method that needs a coach to be looking at a form is a method that stops them looking at the room.

One method, two rooms

The loop is the same in a private lesson and in a class of thirty. What changes is the delivery. One to one, the coach can raise observation density, feedback frequency and athlete-specific adjustment, branch deeper technically, iterate the diagnosis on the spot, and be the partner where that is safe. In a group, the same method scales through shared problem themes with individual target variants, partner allocation, tiered constraints, supplementary work for individuals, the coach sampling across pairs, peer feedback where appropriate, planned observation checkpoints, room-wide progression gates, post-session individual notes, and several valid solutions inside one common problem.

So a class organised around guard retention can run three variants of the same task at once: one pair with the passer restricted to one route, one pair at full choice, one pair starting from an already half-passed guard because that athlete’s problem is recovery rather than retention. Subgroups are formed by admissibility and task quality, never by belt colour alone. A group does not require cloned games, and a private lesson is no excuse to abandon the loop.

Terminal work is typed, and blocks end on evidence

Who may attack and who may defend a given finish is decided per mechanism and per role, against the athlete’s current control depth, age, the rules in play and how they behave with a partner. A belt on its own never settles it, and where eligibility for a high-risk mechanism is unknown it stays closed. The work itself is organised in teaching blocks: a bounded period holding one evidence objective across several opportunities to see it. A block ends because the objective was demonstrated, disproved, displaced by something more valuable, blocked by a prerequisite or a safety condition, or moved to maintenance or transfer. Reaching the end of the calendar is not one of the reasons.

Tomorrow’s session

A blue belt sprawls well, controls the front headlock, and loses the back exchange that follows almost every time. Run the loop. Observed: the go-behind is attempted, the opponent re-squares, and the blue belt ends up underneath. Diagnosed: the opponent’s re-square was never taken away by the headlock control; a restriction problem in the hub rather than an execution problem in the go-behind. Prioritised against the athlete’s other candidates: high frequency, high competitive value, reachable in weeks, transfers across most opponents, low risk. Solution: keep the hub, add the branch that answers the re-square, compress it to one cue. Task: start at the moment of the re-square, ten seconds, opponent resisting fully. Evidence: does the athlete select the branch when the re-square comes, and does the hub survive it. Then revise.

Nothing in that session came from a syllabus, and everything in it can be written down in one line. That is the method.

What the method commits to

Fifteen invariants define whether a coach is running this method, whatever language, techniques or session formats they use. The rules and the victory context are explicit. The athlete and the opponent are modelled separately. Diagnosis precedes prescription. Availability, capability, observation and selection are never collapsed. Priority is sensitive to value and to constraints. Several athlete-specific solutions are permitted. Technical content is organised for decisions and reactions where that helps. The coaching mode is selected rather than fixed by doctrine. Practice is deliberately representative. Assessment changes coaching decisions. Field outcomes are feedback rather than proof. The loop revises itself. Athlete profiles stay non-scalar. Safety, load and recovery are governed explicitly. And the same method applies one to one and in a group.

What it leaves open

The method specifies what a coach should do. Whether coaches applying it diagnose consistently, whether a simpler loop would do the same work, whether its record-keeping is light enough to live with in a real room, and whether it is sufficient at the elite end are questions about people, and nothing on this page is a finding about people. Those questions are kept, in full, on the research page.

The site’s method pillar covers constraints-led practice in practical terms and is compatible reading. It is a separate body of work rather than an implementation of this. The developmental curriculum is the reference the loop draws admissible work from, and the evidence architecture is how what the loop observes is kept honest.