Stretching increases your joint range of motion, warms up your muscles, and aids in muscle recovery. There are two different types of flexibility, static flexibility and dynamic flexibility. Static Flexibility is the range of motion of a joint with very slow, controlled movement. Dynamic Flexibility is the range of motion of a joint with fast, explosive movement. Your static flexibility is probably higher than your dynamic flexibility (perhaps you can do the splits, but can you jump and drop into the splits?), but dynamic flexibility is more important for most athletic activity… More at Strength Stack 52.
This could be more useful than you think.