A Roll is the most basic and fundamental skill in gymnastics. There are many variations to the skill. Rolls are similar to flips

Flip (acrobatic)

An acrobatic flip is a sequence of body movements in which a person leaps into the air and then rotates one or more times while airborne. Acrobatic flips are performed in acro dance, free running, gymnastics, tricking, and various other activities...

 in the fact that it is a complete rotation of the body. However, the rotation of the roll is usually executed on the ground while a flip is executed in mid air with hips passing over the head, without hands touching the floor.

Forward Roll

The Forward Roll is one of the most basic elements in gymnastics. The forward roll is started from a standing position. The gymnast then crouches down, places their hands shoulder width apart and hands facing forward. They tuck their chin to their chest and place the back of their head onto the floor. They then push off of the floor with their legs and rotate over their head onto their back. The gymnast then presses their feet onto the floor and whips the arms forwards to stand up.

Backwards Roll

The backwards roll is similar to the forwards roll but in reverse. The gymnast starts in a standing position and bends to a squat/sitting position with their arms in front. They then lower and lean back slightly until their bottom reaches the floor. They then continue this momentum and roll over their back onto their shoulders. They should then place their hands next to their shoulders and tuck their head into their chin. The hands then push the floor strongly and straighten their arms and continue to rotate their body over their head. The feet are then placed on the floor and the gymnast stands.

Variations:

• Backwards Roll to Handstand
  Handstand
  A handstand is the act of supporting the body in a stable, inverted vertical position by balancing on the hands. In a basic handstand the body is held straight with arms and legs fully extended, with hands spaced approximately shoulder-width apart...
  
  - This is essentially the same as a backwards roll, however when the hands make contact with the ground, they straighten fully and the body continues to straighten upwards into a handstand position.
• Backwards Roll on Rings
  Rings (gymnastics)
  The rings, also known as still rings , is an artistic gymnastics apparatus and the event that uses it. It is traditionally used only by male gymnasts, due to its extreme upper-body strength requirements...
  
  - This is the same movement as a backwards roll but it is performed on the rings. It can also be used in a combination such as backwards roll to maltese.
• Shoulder Roll – This is similar to a backward roll but the roll is performed over one shoulder rather than pushing with the arms and rolling over the head.

Sideways Roll

This can be started lying down on the back and front with the body outstretched. The gymnast then rolls onto their side and does a complete rotation of the body. The Log Roll is a sideways roll with the hands next to the waist and the Pencil Roll is with the hands stretched above the head. A sideways roll can also be performed when a gymnast over-rotates or loses their balance in a vertical, forward or sideways direction. Also known as the "Dean Karras" roll due to his performance at the 2011 Sig Ep Tailgating Olympic Games.

Tucked Sideways Roll

This is started from a kneeling position where the gymnast then sits back onto their heels with their head and arms in an outstretched position like the child pose

Balasana

Balasana , Child's Pose, or Child's Resting Pose, is an asana.- Etymology :The name comes from the Sanskrit words bala meaning "child" and asana meaning "posture" or "seat".- Description :...

 in yoga. From here, the gymnast rolls onto their side with their legs maintaining the tucked position and onto their knees again.

Tin Soldier Roll/Teddy Bear Roll

This roll is started sat on the floor in a straddle position. The legs are held below the knees and the body leans over towards the shoulder on one side. The gymnast then folds more tightly until they roll over their back and return to a sitting straddle position.

Dive Roll

A Dive roll

Dive roll

A Dive Roll is an acrobatic stunt that begins with a horizontal forward diving motion and results in a somersault. Alternate forms such as a Jigaree are also notable....

 is an acrobatic stunt that begins with a horizontal forward diving

Diving

Diving is the sport of jumping or falling into water from a platform or springboard, sometimes while performing acrobatics. Diving is an internationally-recognized sport that is part of the Olympic Games. In addition, unstructured and non-competitive diving is a recreational pastime.Diving is one...

motion and results in a forward roll. Alternate forms such as a Jigaree are also notable.