A Sasquatch-vampire is a rather formidable entity, whose physical characteristics I will list all of in case one is relevant to the question:
there is nothing supernatural about them
they vary from six to twelve feet tall, and 85 to 470 kilograms/187 to 1036 pounds; the one in the question is a small-to-mid-sized one, at eight feet tall and ~375 pounds
they are covered in a layer of thick, wooly hair similar to that of a llama
they are as intelligent as a human being; albeit these particular one is rather unpleasant, and looking to kill someone
although nocturnal, they are not injured by, damaged by, or averse to light, although they get tired during the day, and are somewhat less physically capable, to the extent that a human could outrun one
all of them have a tapetum lucidum, enabling them to see in low-light conditions
they need to ingest approximately a teaspoon of human blood per day for its T-cell content (it has to be human blood, long story), but they get narcotic highs the more they ingest; moreover, this particular individual would rather take it all for social/personal/mental/ideological reasons
they feed on blood via scraping skin off of the neck or wrist lion-style and lapping up the resultant blood; unsurprisingly, this is highly uncomfortable for unwilling humans on various levels
other than the blood, they eat "normal" (as defined by a human) foods, albeit in significantly greater quantities than a human
they are capable of regenerating trauma notably faster than a human (i.e. within days rather than weeks), although they can't do things like "regrowing limbs" or "fixing organs" - they die to the same things humans do, just on a larger scale
they have a lot more neural activation than humans, meaning that they're proportionately stronger (I'd put it as "most of them can bench-press a motorcycle"), since they can "use more muscle per muscle"; the microtears/abrasions in their muscle tissues that are a result of this aren't really a problem due to their heightened regenerative ability
they have a spring-loaded joint in their legs that enables them to vertically jump approximately three feet from a standstill without training
they can climb walls gecko-style; yes, this is scientifically possible even if they weigh half a ton, and this one ain't half a ton
they are burst/ambush predators, and (unencumbered) can run at speeds comparable to/faster than Usain Bolt for a few minutes
they have airbag-like sacs between their ribs to reduce damage due to blunt-force trauma
they have bones that are a mix of bone and nacre; meaning that they can take significantly more compressive force relative to their size in comparison to "normal" life
their skin is bullet-resistant, if certainly not bulletproof
while they can speak in human tones, they can also communicate in infrasound wavelengths between 20 and 0.1 Hertz
they are warmblooded and appear on IR scanners
their hearing and vision are probably describable as "peak-human", and their sense of smell is more like a dog's
their joint fibers are made of resilin, enabling them to survive higher falls and forces with less damage than a human would withstand
One of these things is chasing after and attempting to catch another (human) character. This chase is occurring in an abandoned city the size of Long Beach, California; cars, household goods, etc. are still there, if in exceedingly bad condition. Basically, everyone vanished Rapture-style but left everything else behind. Don't ask why.
How can the human play keep-away for an entire night (i.e. when the vampire-sasquatch gets sluggish and can be ran away from)?
The vampire-sasquatch starts out within a hundred meters of the human, and knows they're in the city, but doesn't know specifically where. They're not going to give up and go away - they specifically hate the human and want them to die - and they're going to look for them all night.
Entering buildings is dangerous, because they're structurally unsound, inhabited by wildlife, occasionally feature bio/chemical hazards (rotting food everywhere!), the floors are caving in, etc.
Neither of them have any equipment beyond everyday wear.