The sideways or side split is a common gymnastics and cheerleading position in which your legs are flat on the floor while your torso is angled toward one of your feet. The ability to perform a sideways split is also helpful for goalies so they can drop down and kick out their legs to stop the puck or ball. If you have flexible hips and thighs, the side split is likely within your capabilities.
Sit on the floor with your legs together and extended in front of you. Your knees should be straight while your toes may point forward or toward the ceiling.
Lean your torso forward while arching your lower back only slightly.
Swing one leg behind you so your two legs almost form a straight line from toe to toe. Your front kneecap should point toward the ceiling while your rear kneecap touches the floor. Raise your torso into an erect position but continue facing your front leg. Make sure both knees remain straight.