The Tells
Things the sport believes about who wins a fight, checked against the record. Most of them will turn out to be nothing. That's the job.
We test whether something predicts a result, not why it does. A marker that reliably says what happens next is worth having even when the reason behind it is something else entirely, and working out which is a harder question we mostly can't answer from a scoreboard.
97 imagined. 3 tested. 1 counting.
Tested
- The OdometerBackwardsEveryone reads high mileage as a countdown. We checked which way it counts.
- Chin DecayPredictiveDoes a first KO loss mean anything the odometer didn't already say?
- The Long GoodbyeNo signalEveryone hears a retirement quote as a confession. We checked 879 fighters and the record never agreed.
Still counting
Written down and frozen before the data lands, so the answer can't be talked into shape after the fact. These have no verdict yet because they haven't earned one.
On the list
Written down, not yet checked. Some of these need data we don't have.
Fight week9
- Arrival date in fight cityAcclimation days (altitude/timezone) affect performance, especially cardio
- Corner compositionHead coach absent / B-team corner signals a deprioritized camp
- Distraction loadActive lawsuits, contract beef, divorce, visa drama in the news that week reduce focus
- Media availability vs own baselineChange in interviews granted vs fighter's own norm signals confidence or hiding
- Open workout sharpnessCrisp vs going-through-motions open workouts leak camp quality
- Speech content: hedging language"Win or learn" framing and talk of life after the fight predicts underperformance vs tunnel-vision opponent focus
- Staredown behaviorBreaking eye contact, forced aggression, or nervous smiling leaks confidence state
- Weigh-in body conditionVisibly drawn/depleted fighters underperform; rehydration bounce size matters
- Weight miss behaviorNot just missing weight but how close and how panicked on the scale
Physical and biometric11
- Breathing tellsVisible mouth breathing, septum history: gas tank proxy nobody logs
- Explosive-twitch decayFirst-step speed visibly slowing; age shows in the legs before the record
- Eye damage historyPokes, retina issues, orbital fractures: vision decline is career-quiet until it isn't
- Frame aging / division outgrowthFighters visibly outgrowing their division: the cut gets unnatural before the misses start
- Hand injuries weighted by styleBrittle hands matter more for volume boxers than grapplers; weight injury by striking dependence
- Late starter freshnessStarted MMA late = less mileage at same age; birthdays overstate their decline
- Lead leg mileageCalf-kick era damage accumulates on movement-based fighters whose game dies with the lead leg
- Listed vs real measurementsListed reach/height lie; corrected numbers change matchup math
- Pre-UFC mileageKickboxing wars and regional-scene damage before the UFC count as miles the record hides
- Recurring jointSame knee rebuilt twice: structural reliability, weighted vs their game
- Stance conversion depthNatural southpaws vs learned switchers: converted stances crack under pressure
Camp and body11
- Camp continuitySame gym/coach/partners as last camp; mid-camp coach change is a red flag
- Camp location/altitude changeFirst-time altitude camps and relocations cut both ways
- Cancellation rateFights pulled out of in last 3 years as a body-reliability score
- Cut trajectorySame cut getting harder over time; misses cluster at end of a divisional stay
- Key partner conflictMain training partner having his own fight that month means half a camp
- Physique deltaVisibly bigger/smaller at weigh-in vs last fight
- Sparring partner matchHaving a body-double for the opponent (size, stance) improves preparation
- Surgery recencySurgery within 12 months, weighted by which limb vs their game
- Teammate podcast leaksGym-mates hyping the camp vs conspicuous silence
- The flu tellSkipping media citing illness during fight week precedes bad nights
- Weight cut sizeWalk-around weight vs division limit is a tax paid every camp
The promotion11
- Card position changeMoved up or down from announcement leaks promotional confidence or backstage info
- Judge assignmentJudges with known scoring tendencies (wrestling-friendly, damage-first) interact with fighter style
- Matchmaking intentSome fights are built to launch someone; being cast as the opponent is a signal in itself
- Promotional investmentEmbedded screen time, poster placement, press push: the UFC signals who it believes in
- Public contract beefOpen negotiation war with the promotion during camp
- Rebooking historyFights rebooked after cancellations mean someone ran two camps for one opponent
- Referee assignmentRefs who let grappling breathe vs quick stand-ups; early vs late stoppage tendencies change live paths to victory
- Seeded broadcast narrativeThe narrative the promotion seeds pre-fight often encodes inside knowledge
- Short-notice replacement classReplacement fighters are an archetype; how originals historically fare vs each replacement type
- Title shot danglingAnnounced stakes (winner gets a shot) clarify motivation asymmetrically
- Venue/crowd contextApex silence vs arena hostility affects specific fighter types differently
Career trajectory10
- Cohort fate (actuarial comps)What happened to statistically similar fighters at this exact career point
- Inflection eventsGym switch, coach death, first sub loss, first weight miss: flag and track next 2-3 fights
- KO loss cadenceTime and fights between KO losses, not the count: whether the gap shortens is a different signal from how many there have been
- Opponent quality slopeA streak vs declining names differs from a streak vs risers
- Output slope (recent vs career)SLpM over last 5 vs career: same number rising vs falling means different fighters
- Personal layoff responseFighter-specific history of returning sharp vs rusty beats generic layoff days
- Post-title-loss hangoverTrajectory after losing a belt/title shot shows a motivation cliff
- Power is the last thing to goSpeed, chin and volume fade with age and mileage; knockdown rate and KO-by-strikes rate hold up longer than any of them
- Stat resistance scoreGap between actual win% and stat-predicted win%; chronic overperformers are real until they aren't
- Style driftWrestlers whose TD attempts trend to zero are decline cases becoming worse strikers
Life context12
- Contract fightLast fight on the deal: desperation urgency vs point-fighting to protect value
- Death in the circleFamily/coach/teammate death during camp
- Divorce/breakup mid-campThe classic invisible debuff
- Fame spike hangoverFirst camp after going viral: new money, new entourage
- Fighting a friend/ex-teammateReluctance shows up as low output
- First main event / PPVMoment size vs their biggest prior stage
- Grudge authenticityGenuine hate makes smart fighters abandon game plans; manufactured beef doesn't
- Hometown fightFolk wisdom says boost; evidence often says pressure debuff
- Money pressurePublic financial trouble; fighting because they have to
- New babyChild born within ~6 months of fight night: sleep debt and motivation rewiring
- Ramadan/fasting overlapReligious fasting overlapping camp is documented but rarely modeled
- Visa/travel chaosLate arrival, camp split across countries
Matchups12
- Doppelganger transitivityHow statistical twins of fighter A fared vs fighters like B
- Pace tolerance mismatchFighter A's pace vs what opponents of B historically survived
- Reach differential historyFighter-specific performance at this height/reach delta, not the delta itself
- Rematch dynamicsRematch results have their own logic: who adjusted last time, who won the first fight and how
- Round-one dependencyFront-runners vs opponents who historically survive round 1
- Second-order compsWho beats the guys who beat you: transitive style info one hop out
- Southpaw exposure recencyTime since last faced a lefty (or trained with one)
- Style collision classGrappler-vs-grappler cancels to kickboxing; classify the collision, predict the phase
- Style triangle recordRecord vs stance/archetype (southpaws, pressure fighters, wrestlers) predicts archetype-specific outcomes
- Victory path asymmetryCount live paths to victory (KO/sub/decision) each way; more paths wins coin flips
- Vulnerability tagsQualitative tags (loses to pressure, loses to motion, folds to body work) validated against results
- Weighted shared opponentsMMA math works when weighted by recency and opponent quality, not raw W/L
Digital exhaust9
- Fight week gaming/streamingTwitch streams and late gaming sessions during fight week
- Geotag camp verificationCheck-ins/geotags reveal where camp actually happened vs the official story
- Late-night activity timestamps3am posts during fight week = sleep disruption, cut trouble, or life chaos
- Posting frequency deltaPosting rate during camp vs own baseline; big swings either way flag something
- Reply tone to fansSnappy, defensive replies pre-fight leak stress
- Silence deltaGoing dark vs own norm: locked in or hiding, needs testing which
- Sponsor push spikeSudden promo/monetization blitz during camp signals divided attention
- Training clip contentWhat they show from camp: new wrinkles vs recycled highlight reps
- Unfollow eventsUnfollowing coach/gym/teammates is the first public trace of a fallout
The market8
- Insider steamSudden moves on obscure props suggest gym-adjacent information
- Journalist tone shiftBeat writers hedging on a favorite they usually hype
- Line movement timingDirection and timing of moves (open vs close) encode information arrival
- Market bias historyFighters the closing line is chronically wrong about get a personal bias tag
- Media pick consensusUnanimous media picks as a fade signal or confirmation, needs testing
- Prop/moneyline disagreementDistance prop implying a different style read than the moneyline is a market seam
- Self-bet confidenceFighters publicly betting on themselves
- Sharp vs public money splitTicket% vs handle% divergence flags where informed money sits