TIRE TREAD RUBBER COMPOSITION , TIRE TREAD, AND TIRE FOR PASSENGER CAR

Provided is a tire tread rubber composition that can have improved low fuel consumption performance, wet grip performance, fracture properties, and processability in a well-balanced manner as a whole, a tire tread formed from the rubber composition, and a tire for a passenger car that includes the tire tread. The tire tread rubber composition contains: a rubber component including an isoprene-based rubber and a styrene-butadiene rubber; a filler including 20% by mass or more of silica and 20% by mass or more of carbon black; a mercapto-based silane coupling agent; a liquid rubber; and a resin.