Ended up with a distance of 24,458 and a peak ball count of 1237. There are two glitches I abuse. The first is that in the part with all the metal obstacles such as the swinging hammers, the stacked pyramid of glass boxes will not hurt you at all. You can literally just go straight through them without taking any damage. The second glitch is one I have no control over. Once you get far enough, the game glitches out and overflows back into the beginning of endless mode. Your score doesn't change because of this, but the speed slows down and more crystals appear.
Also, I pause the game for a few seconds at one point because there was a car alarm going off where I was and I thought it was my car haha