The ITB isn’t a muscle, it’s a sheet of fascia that runs up the side of the leg from knee to hip so it can’t be stretched. This is why some research is coming out saying it isn’t worth foam rolling the ITB, however I think it’s still worth it to break down any adherences in it but focus most of your energy (and pain threshold
😬) on easing out tension in the glutes.
Fresh Sports Massage 