The S-Mount in Brazilian Jiu-Jitsu (BJJ) is a highly effective and dominant position used for control and submission. It is also known as the Technical Mount or the Grapevine Mount due to the way the legs are positioned. This position offers the practitioner a significant advantage over their opponent, allowing for various attacks and control options.

To achieve the S-Mount, a practitioner starts in the traditional mount position, straddling their opponent's chest while maintaining a solid base. From here, they transition by sliding one knee up and over their opponent's arm, placing it alongside their head. Simultaneously, the other leg extends and hooks around their opponent's waist or hips, forming an "S" shape with their legs.

The S-Mount offers excellent control and leverage. The practitioner's weight is centered over their opponent's upper body, making it challenging for the opponent to escape or bridge. This position allows for a range of submission options, including armlocks, chokes, and transitions to the back.

One of the most common submissions from the S-Mount is the armbar. The practitioner can isolate their opponent's arm, control the wrist, and apply pressure to hyperextend the elbow joint. Additionally, they can attack with collar chokes, utilizing the gi for extra leverage.

The S-Mount is not only effective in submission grappling but also in self-defense situations, as it provides superior control and minimizes the risk of the practitioner losing their position. However, it requires precise technique and practice to maintain balance and execute submissions effectively.

In summary, the S-Mount is a powerful and versatile position in Brazilian Jiu-Jitsu, offering control and submission opportunities. It showcases the art's emphasis on technique and leverage, making it a fundamental aspect of BJJ's ground game.