Common Swim Disqualifications: How to Avoid Them

The first time I saw "DQ" next to Rafa's name on a Vancouver scoreboard, I had to ask another parent what it meant. They told me. Disqualified. I asked why. They said something about a touch on the breaststroke turn and shrugged. We never really got the full explanation that day.

Most swim parents have a version of that story. The DQ shows up, nobody on the deck has time to walk you through what happened, and your swimmer comes out of the water either confused or upset, depending on whether they know yet.

DQs are a normal part of swimming. They happen to beginners and to elite swimmers. Knowing the most common reasons by stroke helps swimmers avoid them and helps parents understand what they are looking at when they happen.

Here are the rules that trip up most swimmers, by stroke, with what to do about each one.

What a DQ Actually Means

A DQ (disqualification) means an official judged that the swimmer broke a rule during the race. The swim does not count: it is not a result, a best time, or a qualifying time, even if a time shows on the board.

The stroke rules come from World Aquatics (the international federation). USA Swimming and Swimming Canada apply them, with a few domestic details. The rule numbers below are from the USA Swimming 2026 rulebook, Article 101.

A DQ is not a punishment. It is a call. Under USA Swimming rules, the official who sees the infraction raises one hand right away. If no hand goes up, there is no DQ (rule 102.21.1).

Starts: False Starts and Relay Take-offs

False starts apply to every stroke. Under USA Swimming rules, a swimmer who starts before the signal can be disqualified once the Referee confirms the Starter's call. If the race has already started, it keeps going and the DQ is announced at the end (rule 101.1.3).

• Moving on the blocks before the signal. A lean or a twitch after "take your marks" can be enough.
• Early relay take-off. In relays, a swimmer who leaves the block before the teammate in the water touches the wall disqualifies the whole relay.

The fix is boring and works: practice starts from the blocks with a real "take your marks," and practice relay exchanges, not just swims.

Freestyle: The Hardest Stroke to Get DQ'd

Freestyle has the loosest rules. The swimmer may swim any style (almost everyone swims front crawl), as long as they:

• Touch the wall at every turn and at the finish (rule 101.5)
• Break the surface with the head by 15 meters after the start and each turn

The most common freestyle DQs:

• Missing the wall on a turn. A flip turn that starts too early can mean the feet never touch. Tired swimmers in long races are the usual victims.
• Staying underwater past 15 meters. Underwater dolphin kicks are legal off the start and each wall, but the head must be up by the 15-meter mark. Most pools mark it on the lane rope.
• Walking or pushing off the bottom. Standing on the bottom in a freestyle race is not a DQ, but walking or springing off the bottom is. In any other stroke, standing on the bottom is a DQ (rule 102.21.6).

Practice clean wall contact in training, even when tired.

Backstroke: The Turn Catches People

Most backstroke DQs happen at the turn, not during the swim.

The rules (101.4):

• Stay on the back for the whole race, except during the turn
• At the turn, the shoulders may rotate past vertical toward the stomach. After that, the swimmer may take one immediate, continuous arm pull (one arm, or both arms together) to start the turn
• Leave the wall on the back
• Touch the wall at the finish while on the back

The most common backstroke DQs:

• Rolling onto the stomach too early. The U.S. Masters Swimming guide names flipping onto the front before the turn as the classic backstroke DQ. Rolling over and then gliding, kicking or taking extra strokes into the wall is a DQ. The roll and the turn must be one continuous motion.
• Extra arm pulls after rolling over. One pull is allowed. A second stroke on the stomach is a DQ.
• Staying underwater past 15 meters. Same as freestyle: the head must be up by 15 meters off the start and each turn.
• Rolling onto the stomach at the finish. The touch must come while the swimmer is still on the back.

If your swimmer is new to backstroke flip turns, ask the coach to count strokes from the flags to the wall with them. Most turn DQs come from not knowing where the wall is.

Breaststroke: Two Hands, Symmetric Kick, One Dolphin

Breaststroke rules are strict and the stroke is technical, which is why it produces so many DQs in age group swimming.

The rules (101.2):

• Both hands touch the wall together, separated, at every turn and at the finish
• The kick is simultaneous, with the feet turned out during the push (no scissor, flutter or dolphin kicks)
• After the start and each turn, one butterfly (dolphin) kick is allowed at any point before the first breaststroke kick
• The hands may not pull back past the hip line, except on the first pull after the start and each turn
• Some part of the head must break the surface during every stroke cycle

The most common breaststroke DQs:

• One-hand touches. Touching with one hand, or one hand clearly after the other, at a turn or the finish. U.S. Masters Swimming calls it the most common breaststroke DQ.
• Scissor or alternating kicks. Both feet must work together. If one foot turns out and the other does not, it is a scissor kick and a DQ.
• More than one dolphin kick off the wall. Only one is allowed, before the first breaststroke kick.
• Pulling past the hips. A long, butterfly-like pull in the middle of the race is a DQ. Only the first pull off each wall may go all the way back.

Most breaststroke DQs at younger ages come from the wall touch. Drill it: both hands, every time, even in practice.

Butterfly: Symmetry and the Dolphin Kick

Butterfly has fewer rules than breaststroke but the highest physical demand. Tired butterfly swimmers make the mistakes that turn into DQs.

The rules (101.3):

• Both arms come forward together over the water and pull back together under the water
• The legs move up and down together (no flutter, scissor or breaststroke kick)
• Only one arm pull underwater after the start and each turn, and the head must be up by 15 meters
• Both hands touch the wall together, separated, at every turn and at the finish

The most common butterfly DQs:

• Alternating (flutter) kicks. U.S. Masters Swimming calls it the most common butterfly DQ for new swimmers. Tired swimmers slip into a flutter kick to keep moving.
• Arms not recovering over the water. Dragging the arms forward through the water late in the race is a DQ.
• One-hand touches. Same as breaststroke: both hands, at the same time.
• Staying underwater past 15 meters. The 15-meter mark applies off every wall.

Butterfly DQs are mostly fatigue. Building the endurance to hold the stroke through the back half of a 100 or 200 is the long-term fix.

IM (Individual Medley): Stroke Order and Transitions

In an IM the order is butterfly, backstroke, breaststroke, freestyle (rule 101.6). Each leg follows the rules of its stroke.

Common IM DQs:

• Wrong stroke order. Rare, but it happens to younger swimmers in their first IM.
• Illegal transitions. Each change of stroke follows the finish rule of the stroke just finished. Fly to back: two-hand touch. Back to breast: touch while still on the back (a flip turn off the back is a DQ). Breast to free: two-hand touch.
• Backstroke in the freestyle leg. In an IM, freestyle must be swum on the front.
• Stroke DQs. Any DQ that applies to a stroke also applies in its IM leg.

What to Do After a DQ

A DQ feels worse than a slow swim. The time existed, the work happened, and then it gets erased.

Here is the practical sequence for swimmers and parents.

1. Find out exactly what the DQ was for. Under USA Swimming rules, the official has to make every reasonable effort to tell the swimmer or coach the reason (rule 102.21.2), so ask the coach. The DQ also appears in the posted results, often with a short code. Knowing the specific reason matters more than the DQ itself.

2. Acknowledge the swim happened. Even if it does not count for ranking, the time is real. The swimmer trained, raced, and finished. That counts for confidence and for next time.

3. Drill the specific issue at the next practice. A breaststroke wall-touch DQ becomes a wall-touch drill. A backstroke turn DQ becomes a turn-rotation drill. The fix is usually small and specific.

4. Move on. A DQ at one meet does not change a swimmer's career. Most swimmers have several over the course of their swimming. Holding onto one for weeks is more damaging than the DQ itself.

5. Track the trend, not the single result. If DQs are stacking up in one stroke, that is a coaching conversation. If it is one DQ in a season, it is just part of swimming.

A DQ erases one swim, not the season. Every legal time your swimmer has posted still counts toward their best times and their standards. In Gophin, Times keeps every legal swim from official results in one place, and Compare → Seasons shows the whole season next to the last one, so after a tough call you look at the trend instead of one line on a scoreboard. Sign in free and open your swimmer's times.

How Officials Make the Call

Stroke and turn judges walk the sides and stand at the ends of the pool. Before the session, the Referee assigns each one an area, and only the official responsible for that area can make the call (rule 102.21.1). One official seeing the infraction is enough.

The Referee reviews each call. A coach can ask the Referee about a DQ, but judgment calls cannot go to a jury: the Referee's decision is final (rule 102.22.1).

This is why DQs feel sudden and final. They mostly are.

One Last Thing

DQs are part of swimming. Every swimmer gets one eventually. The ones who recover fastest are the ones who treat it as information, not as a verdict.

Find out what the call was for, fix it in practice, and move on to the next race.

And once the meet is over and the official times post, look at the swims that did count. That is where the progress is.

Sign in free and see the swims that counted

Sources

1. USA Swimming. 2026 Rulebook. Article 101 (starts and stroke rules), 102.21 (disqualifications), 102.22 (protests).
2. World Aquatics. Competition Regulations. Swimming rules SW 4 to SW 9, the international base for the stroke rules.
3. U.S. Masters Swimming. How swimmers can avoid the most common disqualifications.