Clubs measure every muscle. Load, sleep, GPS, body composition, all tracked in forensic detail, every day. The systems football is decided by, attention, working memory and decision speed, are almost never measured directly. Most practitioners say they don't formally assess mental fatigue or cognitive recovery at all, citing a lack of tools. Our new white paper, Connectome in Football, is about closing that gap. This is the short version.

Why it matters

Football is decided in milliseconds: the read before the pass, the decision under pressure, the recovery of focus after a mistake. When the brain is fatigued, technical performance drops. Under mental fatigue, players make around 50% more missed-target passing errors. An average 25-player squad loses 574 days to injury a season, and the injury rate is around six times higher with two matches a week instead of one. Injuries cost an average Premier League club roughly £45m a season.

All of those numbers are measured after the fact. Measuring the brain is the first step to managing it before.

What Connectome measures

A direct, repeatable read of how each player's brain is performing, under the same conditions every time, read against the player's own baseline. Never against a squad average.

A short headset session of around ten minutes measures the player's prefrontal response during a few focused tasks. The club links the wearables players already use (WHOOP, Oura, Garmin, Apple) so the sleep, load and recovery behind every scan are read alongside it. Each scan teaches the player's personal model which inputs have moved with their best days and their worst.

The output is four named metrics: Working Memory, Cognitive Flexibility, Attentional Control and Neural Efficiency, the last of which shows how hard the brain worked to hit a score. Same result, one player cruising, one redlining. A four-minute resting-state scan gives a brain-state read that fits inside a pre-training window.

How clubs put it to work

Fatigue and recovery. See how hard each brain is working through congested periods, and where a player sits against their own baseline on the day.

Return-to-play. A brain-state check against the player's own baseline, alongside physical return tests. In the sport-science literature, slower reaction time predicts lower-limb injury in seven of nine studies.

Player development. Objective evidence of cognitive progression across a season, for coaching decisions and, at sale, the diligence package.

Individualisation. See which inputs have moved with each player's scores, so scheduling and support can be targeted without changing the squad-wide plan.

The typical programme: three full scans in pre-season to set the baseline, four-minute scans routinely in season, full scans on demand around congestion, rehab and milestones. Protect the three-scan baseline; without it, in-season data has no reference point.

How we protect the players, and the club

The fastest way to lose a squad is to make players feel watched. Role-based access means no one views a player's data without the right role, and every access is logged. Full informed consent means no data is viewed without the player's agreement, and the player sees their own data first. No player-versus-player comparison means no leaderboards; every player is benchmarked only against their own baseline, which removes the ranking-and-deselection fear.

The player's own view is the Connectome app: a weekly score, one thing to try, their goal, and the events they've logged. It's theirs

Lifestyle Links in the Connectome app: which inputs have moved with this player's brain responses. Association, not cause.

The evidence base

The measurement rests on the LUCID study with Imperial College London (100+ healthy adults, three scans each alongside wearable data), which found a stable individual signature in prefrontal response and a link between greater activation and faster performance. This research is a preprint and has not yet been peer reviewed. The sport figures above are drawn from peer-reviewed sport-science literature and industry injury-cost reporting, referenced in full in the white paper. Connectome is already in use with clubs including Como 1907.

To read the full white paper or talk to us about your club book a demo here.

The measures are not intended for diagnostic use. The normative values applied are preliminary, not gender- or age-specific, and should be interpreted with caution. Connectome measures cognitive performance, not pathology, and does not diagnose, predict injury or health outcomes, or prescribe. Measured with the Kernel Flow2: Class 1 laser, FLPPS 21CFR1040.10, For Research Use Only. Research with Imperial College London (LUCID) is a preprint.