TK75, or HID. At under 200 meters, you will light him up like a deer in headlights.
Just about any XPG2 or XML thrower will reach out to 100 yards, but there is a difference in lighting something up, and putting a true spotlight on it :eg:
The Convoy M1 is a good practical choice. It should reach out to 200 meters. Though bear in mind, for a flashlight to be considered as reaching a certain distance - the throw distance - it only has to put the equivalent of bright moonlight, .25 lux on target. Which I take to mean, whatever manufacturer says (reliable manufacturer) divide by 2-3.