Follow that link. The video discusses how to deal with the exact type of shot you're talking about. Calling it a putting video is a bit of a misnomer, as 100 feet is really an approach to all disc golfers who don't have the last name Feldberg. : )
You shouldn't really expect it to go in from outside 30 feet or so (but it does happen sometimes), so you want to be able to set yourself up for a drop in if possible.
For my longer approaches 100'+ I stand with feet closer together then step towards the basket, with a finesse type grip, like a beach frisbee. most times i use a drop shot, so my disc flops down near the basket for an easy par. At this range I dont "go for it" as much as when I first started playing about 6 months ago. Practice the drop shot/putt, works well for me in most cases, and park that plastic for par. Id rather do that and take than over shoot the basket by 30+ feet and takey bogey, or even worse miss the 2nd putt and take a double.
as told to me "Great drives make birdies, but a good upshot wins games"
I wouldent grip and rip, use a pivot shot with little arm speed and a bit on snap, fallow through with you apposing leg and bring your hips through. I've also started to jump mid, same as a jump put but for farther shots. When in doubt. Practice alot of different shots and find ot whats best for you..
A good tip here is to also never take your eyes off the basket when turning to throw (close up shot). Many beginners look at the disc as it goes back decreasing their accuracy. Also hold your disc above your elbow unless your throwing a hyzer up shot. You'll find your disc travels frequently where your eyes are looking. Good Luck