Gymnastics twist names count turns around the gymnast’s head-to-foot axis. A half twist is 180 degrees, a full twist is 360 degrees and a double twist is 720 degrees. The fraction counts the twist, not the number of somersaults.
That distinction matters when names contain several numbers. “Double full” and “double back” describe different rotations. For the visual difference, start with flips versus twists.
Reading the fractions
| Twist amount | Degrees | Common spoken name |
|---|---|---|
| ½ | 180° | Half |
| 1/1 | 360° | Full |
| 1½ | 540° | One and a half |
| 2/1 | 720° | Double full or double twist |
| 2½ | 900° | Two and a half |
| 3/1 | 1,080° | Triple twist |
Rulebooks may write a full turn as “1/1” and two full turns as “2/1.” These are counts of complete revolutions. They are not difficulty ratings or a score out of one.
The rest of the name is still needed. “Full” might be shorthand for a particular tumbling skill in one conversation and refer to the twisting part of a vault in another. Asking “full twist in which skill?” removes the ambiguity.
To convert a twist amount into degrees, multiply by 360. One and a half is 1.5 × 360 = 540 degrees; two and a half is 2.5 × 360 = 900 degrees. The arithmetic explains the label. It does not confirm that a particular skill exists, is permitted or receives credit in the competition being watched.
The same fractions appear in dance turns and other gymnastics descriptions. A turn on one foot can involve 360 degrees without being a twisting somersault. Read the action attached to the fraction rather than allowing the number to replace the skill name.
Double full is different from double back
In common tumbling usage, a double full is a single layout salto with two twists. A double back contains two backward somersaults; the phrase alone does not add two twists.
A double-twisting double back contains both: two twists and two somersaults. Its body shape supplies another detail, such as tucked or stretched. Counting twists, counting somersaults and naming the shape are separate steps.
For a single-salto example, the guide to a full-twisting back layout breaks down one backward somersault with one full twist.
Keep a separate column for each count
| Example description | Somersault count | Twist count | Information still to check |
|---|---|---|---|
| Back layout with 1½ twists | One | One and a half | Apparatus and applicable value |
| Double back tucked | Two | No twist specified | Entry and competition context |
| Double back with a full twist | Two | One | Body shape and any timing description |
| Double-twisting double back | Two | Two | Body shape and exact variant |
For example, hearing “two and a half” during a floor pass usually leaves words unstated. The surrounding discussion may make the intended skill obvious to an experienced listener, but the isolated phrase does not identify its direction or apparatus. A written explanation should supply that missing context.
Be equally careful with the word “triple.” A triple twist and a triple somersault are different descriptions. Before comparing difficulty, establish which rotation the commentator is counting. Large numbers are memorable, which makes them especially easy to detach from the rest of a name.
What “full-in” and “full-out” add
Some names also indicate where the twist occurs within a double salto. A full-in places the full twist in the first somersault. A full-out places it in the second. The USA Gymnastics glossary gives these as “full-in, back-out” and “back-in, full-out.”
Both descriptions contain one full twist in total. “In” and “out” locate it; they do not add another revolution. Similarly, “half-in, half-out” describes half a twist in each part of a double salto, for a total of one full twist.
These names help describe the action. They do not establish that two variations receive different values in every competition system.
Entry and exit twists can be counted separately
Vault descriptions may distinguish turning before the hands contact the table from twisting in the flight after the table. A phrase such as “half-on” describes the entry phase, so it should not be confused with a half twist after the push from the table.
Timing also matters in named skills. The FIG women’s Code of Points describes an Arabian salto as a backward takeoff with a half twist into a forward salto. A quarter turn before takeoff is not the definition.
On vault, keep entry and post-table flight in their own parts of the description. Adding every turn in the approach into a single twist total can erase the features that identify the vault family. A round-off entry and a specified twist after leaving the table are not interchangeable pieces of vocabulary.
The same caution applies to landing orientation. A gymnast who finishes facing the same direction after an added full revolution may have performed a different skill despite a similar final image. To count accurately, follow the airborne action from the actual takeoff rather than starting halfway through a replay.
What the name does not tell the reader
A twist count alone does not provide a difficulty value, a required USAG level or a teaching sequence. The full element, apparatus and applicable rules are necessary for those questions. A fraction table is a vocabulary aid, not a plan for learning progressively larger twists.
A useful written note has room for uncertainty: “one backward salto, stretched, twist count unclear from this angle” is more accurate than assigning a confident name from an obstructed view. A different replay or an official routine description may resolve the missing count.
Finally, treat everyday shorthand as context-dependent. A teammate, coach and television commentator may omit different words because they assume different background knowledge. Asking for the full element name is a clarification of terminology, not a disagreement about what happened. Once the omitted words are restored, many apparently conflicting descriptions become easy to reconcile.
Do not read a fraction as a measure of speed. “2/1” specifies two complete twists, whether the skill looks quick or slow in the recording. A slow-motion replay changes viewing speed, not the number in the name. Likewise, counting frames can help examine a movement, but frame count is not itself a twist count.
Quick Recap
Read the twist amount first, then identify the somersault, shape and any entry or timing words. That keeps “full,” “double” and “in” from being mistaken for interchangeable descriptions.