🤿 Diving, explained
Athletes launch from springboards or 10m platforms, pack somersaults and twists into two seconds of flight, and vanish into the water.
What am I watching?
Every dive is the same tiny drama: an approach, a takeoff, about two seconds of flight, and an entry. The athlete leaves either a springboard — a flexible board three metres above the water that they bend and ride upward for extra height — or a platform, a rigid concrete tower ten metres up. In the air they perform a declared combination of somersaults and twists in a set body position, then try to enter the water perfectly vertical with almost no splash. The near-silent, splashless finish is called a rip entry, and it is the single clearest sign of a great dive for a new viewer.
Scoring is transparent once you know the formula. Judges score each dive out of 10 for execution — takeoff, flight, and above all the entry. The highest and lowest judges' scores are thrown out, the remainder are summed, and that sum is multiplied by the dive's degree of difficulty (DD), a preset multiplier for how hard the declared dive is. So a safe, beautiful dive and a brutal, slightly flawed one can score the same — the DD system is the sport's risk-reward engine, and contests are often decided by who dares the bigger final-round dives and lands them.
Competitions run in rounds: each diver performs a fixed list of dives declared in advance, one per round, and the totals accumulate — there is no discarding a bad dive, which is why one failed dive ('a miss') is usually fatal in a final. In synchronised events, pairs dive side by side and a split judging panel scores both how well each diver performs and how perfectly the two match in timing, height and entry. Between dives you will see athletes hit the showers or hot tubs; that is simply to keep muscles warm between rounds.
How scoring works
Each dive is scored by a judging panel awarding marks from 0 to 10 in half-point steps, judging the approach, takeoff, flight and entry — not the difficulty, which is handled separately. In individual events at major championships, seven judges score each dive; the two highest and two lowest awards are discarded, and the remaining three are added together. That sum is multiplied by the dive's degree of difficulty (DD) to give the dive score. Totals accumulate across all rounds — six dives for men and five for women in individual events — and the highest total wins.
The degree of difficulty is set before the dive is ever performed: every legal dive has a DD computed by formula from its components — the number of somersaults and twists, the body position, the dive group and the takeoff. Easier dives sit near the bottom of the scale and the hardest dives performed today carry DDs above 4.0. Divers declare their full dive list in advance and cannot change a dive after the deadline; performing a different dive than declared scores zero.
Synchronised events use a larger panel that splits duties: some judges score each diver's individual execution while others score only the synchronisation — matching takeoff, height, somersault speed, and entry timing. After the prescribed discards of high and low awards, the remaining execution and synchronisation scores are summed, scaled, and multiplied by the DD, so a pair needs both clean individual dives and perfect togetherness. In synchro lists, the first two dives are scored with a fixed nominal DD regardless of the dives performed, putting pure execution on show before the hard dives begin.
Judges' individual awards follow a shared scale: a dive judged excellent scores up to 10, good dives sit in the high single digits, satisfactory dives around the middle, deficient dives lower, and a completely failed dive scores zero for the round.
- Judges score each dive 0-10 in half-point increments for execution only
- Individual events: 7 judges; drop the 2 highest and 2 lowest, sum the middle 3
- Dive score = (sum of counting judges' marks) x degree of difficulty
- DD is preset by formula from somersaults, twists, position, group and takeoff
- Men perform 6 dives and women 5 in individual events; every dive counts, no discards
- Diving a different dive than declared scores zero
- Synchro panels score individual execution and synchronisation separately, then combine
- The first two dives of a synchro list carry a fixed nominal DD — execution only
- Highest cumulative total across all rounds wins
Formats
3m springboard (individual)
10m platform (individual)
Synchronised 3m and 10m
1m springboard
High diving
Team and mixed events
The rules
Springboard vs platform
The two apparatus define the sport's two halves. The springboard is a flexible board, three metres above the pool in Olympic events, mounted on an adjustable fulcrum that each diver sets to tune the board's stiffness; divers use a stepping approach and a final downward press (the hurdle) to load the board and ride its recoil upward. The platform is a rigid surface ten metres above the water — no spring, so all height comes from the legs, and entry speeds from 10m are much higher, making precise vertical entries harder and impacts heavier. Springboard rewards rhythm with the board; platform rewards raw takeoff power and nerve.
The fulcrum
The movable roller under the springboard that divers adjust before each dive. Moving it changes how much the board flexes — more flex means more height but slower, harder-to-time recoil. Elite divers have a personal fulcrum setting for each dive.
The six dive groups
Every dive belongs to one of six groups defined by takeoff direction and rotation. Forward dives rotate away from the board while facing the water; back dives start facing away and rotate backward; reverse dives take off facing forward but rotate back toward the board; inward dives start facing the board and rotate toward it; the twisting group adds twist to any of those; and armstand dives — platform only — begin from a handstand on the platform edge. The group is the first digit of the dive number and shapes both the difficulty and the danger, since reverse and inward dives rotate toward the apparatus.
Positions and dive numbers
In flight the body must hold one of four positions: straight (A) with no bend, pike (B) bent at the hips with legs straight, tuck (C) knees pulled to the chest, and free (D), which permits combinations during twisting dives. Every dive is identified by a number-letter code: the digits encode the group and the amount of somersault and twist, and the final letter is the position. Commentators say the code aloud — for example 107B is a forward three-and-a-half somersault in pike — and the scoreboard shows it with the DD before each dive.
Reading a dive number
The first digit is the group (1 forward, 2 back, 3 reverse, 4 inward, 5 twisting, 6 armstand). In non-twisting dives the last digit counts half-somersaults, so 105 means a forward two-and-a-half. Twisting dives use four digits, with the third counting half-somersaults and the fourth counting half-twists. The closing letter gives the position, A through D.
Degree of difficulty
Every legal dive has a degree of difficulty computed from a published formula: components for somersaults, twists, position, dive group, takeoff and (on platform) height combine into a single multiplier. Simple dives carry low DDs; the hardest dives thrown in elite finals exceed 4.0. Because the judges' execution scores are multiplied by the DD, difficulty is the sport's currency: a diver with a harder list has a higher ceiling but more ways to fail, and title contests often come down to whether the big final-round dives are landed. DDs are fixed before competition — judges never adjust for difficulty themselves.
Judging individual events
A panel — seven judges at the Olympics and World Championships — watches each dive and independently awards 0-10 in half-point steps, judging the approach, takeoff, height, flight mechanics and entry, with the entry weighing heavily. The two highest and two lowest awards are cancelled to blunt bias and outliers, the remaining three are summed and multiplied by the DD. Judges penalise specific faults by rule: a restarted approach (balk) costs a deduction, insufficient verticality at entry drags scores down, and a dive that fails outright — landing flat, or performing the wrong dive — scores zero. Divers may not see judges' scores change after the referee confirms them.
What judges reward
Height off the board, a clean and controlled takeoff distance (close enough to be brave, far enough to be safe), tight and fast rotation, an early visible 'come-out' that shows control, a stretched vertical line at entry, and minimal splash. The rip entry — hands flat, body vertical, water seemingly swallowing the diver — is what turns 8s into 9.5s.
Judging synchronised events
Synchro uses an enlarged panel divided into two jobs. Execution judges are assigned to one diver each and score that diver's dive as in an individual event; synchronisation judges score only the pair's togetherness — matched starting, takeoff, height, timing of somersaults and twists, and simultaneous vertical entries. High and low awards are discarded within each group, and the surviving execution and synchronisation scores are combined, scaled so totals are comparable with individual events, and multiplied by the DD. The design means a brilliant dive by one partner is worthless if the other is out of time: synchro rewards two ordinary dives in perfect unison over one great and one poor.
Competition structure
Olympic individual events run in three stages — a preliminary round open to the full field, a semifinal for the top eighteen, and a final for the top twelve — with scores reset to zero at each stage, so a final is a fresh contest. Divers submit their complete dive lists in advance, one dive per round, with rules ensuring variety: lists must draw on different dive groups, and in some events part of the list is capped in difficulty so that pure execution is tested alongside ambition. Synchro events are typically a single final or preliminary-plus-final with smaller fields.
Order, conduct and the referee
A referee manages the event: signalling each diver to start, enforcing time limits to begin the dive, ruling on balks and failed dives, and confirming scores. Divers must not bounce the board excessively, must take off from both feet on springboard (armstand and running takeoffs have their own rules), and receive deductions or zero scores for restarts, assistance, or performing a dive other than the one declared. Between rounds athletes may shower or soak — pools keep bubble machines ('spargers') running under the platform so divers can see the water surface, and safety rules govern training dives and apparatus access.
Glossary — 30 terms
Stats decoded
| Stat | Unit | What it tells you |
|---|---|---|
| Total score | points | The sum of all dive scores across the rounds of an event — the number that decides the result. There are no discards, so every round's points carry equal weight in the total. |
| Single dive score | points | The points earned by one dive: the counting judges' marks summed and multiplied by the DD. Broadcasts show it seconds after the splash, alongside the running total and rank. |
| Degree of difficulty | multiplier | The preset difficulty multiplier of each dive. Summing a diver's DDs across their list shows how aggressive their programme is — higher total difficulty means a higher ceiling and more risk. |
| Total list difficulty | sum of DDs | The combined DD of a diver's declared list. Comparing list difficulty before a final reveals who must out-execute the field and who can win on ambition alone. |
| Average execution mark | 0-10 | The average of the counting judges' awards on a dive or across an event. Averages in the 8.5-plus range indicate championship-level execution; a leader averaging 7s is winning on difficulty. |
| High-score rate (8.5+) | % | The share of a diver's marks at 8.5 or above, a proxy for rip-entry consistency. It separates divers who occasionally nail a dive from those who rip almost every entry. |
| Synchronisation marks | 0-10 | In synchro, the awards from the judges scoring only the pair's togetherness. Tracking sync marks separately from execution shows whether a pair's weakness is individual technique or matching. |
| Score consistency | spread across rounds | How tightly a diver's round scores cluster. Because one failed dive cannot be discarded, low variance across rounds is often more predictive of medals than a high best-dive score. |
| Final-round scoring | points | Average points on the last dives of an event, where lists back-load difficulty and pressure peaks. Big final-round scorers are the sport's closers, capable of overturning leads at the death. |
| Rank by stage | position | A diver's placing in preliminary, semifinal and final. Scores reset to zero between stages, so stage-by-stage rank shows who peaks when it counts rather than who cruised the prelim. |
| Failed or sub-4 dives | count per season | How often a diver fails a dive or scores below the deficient threshold across a season. Elite careers are built on keeping this number near zero, especially on the highest-DD dives. |
Quick answers
How is diving scored?
Judges award each dive 0-10 in half-point steps for execution — approach, takeoff, flight and especially the entry. In individual events at major championships seven judges score, the two highest and two lowest marks are discarded, and the middle three are summed and multiplied by the dive's preset degree of difficulty. Totals accumulate across all rounds — six dives for men, five for women — and the highest total wins. Nothing is discarded, so one bad dive is usually decisive.
What is degree of difficulty in diving?
The degree of difficulty (DD) is a fixed multiplier attached to every dive before it is performed, calculated by formula from its components: how many somersaults and twists, the body position, the dive group and the takeoff. Judges score only how well the dive was done; the DD then scales that score. It is the sport's risk-reward system — the hardest dives in modern finals carry DDs above 4.0, offering huge scores but punishing any error just as hard.
How does judging work in synchronised diving?
Synchro uses a larger panel split into two jobs: execution judges assigned to each diver score their individual dives as normal, while synchronisation judges score only how perfectly the pair match — takeoff timing, height, speed of rotation and simultaneous entries. High and low marks are discarded within each group, and the remaining execution and synchronisation scores are combined, scaled to be comparable with individual events, and multiplied by the DD. A pair therefore needs two clean dives in perfect unison, and the first two dives of a list are scored at a fixed nominal DD to showcase pure execution.
What is the difference between springboard and platform diving?
Springboard events use a flexible 3m board with an adjustable fulcrum: divers press the board down and ride its recoil, so the craft is timing the spring. Platform events take place on a rigid tower 10m up: there is no spring, so all height comes from the legs, the fall is longer and faster, and entries are harder to keep vertical. The platform is also the only apparatus with armstand dives, which begin from a handstand on the edge.
Why do divers shower or sit in a hot tub between dives?
To stay warm. Divers are wet and mostly stationary between rounds, and diving pools and arenas are cool; cold, tight muscles are slower and more injury-prone in a sport of explosive takeoffs and violent rotation. The showers and hot tubs on the pool deck simply keep muscles loose between dives, and the small towel (shammy) divers carry is for drying skin so their grip does not slip mid-dive.
What is a rip entry?
A rip entry is a near-splashless, vertical entry — named for its sound, like cloth tearing. The diver punches a hole in the surface with flat palms and slides the whole stretched body through that same hole, leaving barely a ripple. Because the entry is the final and most heavily weighed element judges see, a consistent rip is the clearest separator between good and great divers.
What do the dive numbers like 107B mean?
Every dive has a code. The first digit is the group: 1 forward, 2 back, 3 reverse, 4 inward, 5 twisting, 6 armstand. In non-twisting dives the last digit counts half-somersaults, and the closing letter is the position — A straight, B pike, C tuck, D free. So 107B is a forward dive (1) with seven half-somersaults — three and a half — in pike (B). Twisting dives use four digits, adding a count of half-twists.
How deep is a diving pool and is 10m diving dangerous?
Competition diving wells are built to World Aquatics facility standards, with the required depth increasing for higher apparatus — a 10m well is several metres deep and deepest beneath the tower. The sport is heavily safety-engineered: bubble spargers mark and soften the surface, divers progress to 10m over years, and entry technique protects the body. Even so, platform impacts are severe, which is why dives from the 27m high-diving towers are entered feet-first, not head-first.
Which events make up Olympic diving?
Eight events: men's and women's 3m springboard, men's and women's 10m platform, and synchronised versions of all four. Individual events run through a preliminary, a semifinal of eighteen and a final of twelve, with scores resetting each stage. China has been the sport's dominant nation for decades, while for Indian viewers diving is a regular medal event at the Asian Games and Commonwealth Games.