Time to ready the oxygen tanks: Commercial brokers are planning to race up 86 floors of the Empire State Building.

Come Feb. 5, an Empire State Building spokeswoman tells us that the city’s biggest brokerages will square off with each other as part of the building’s annual “Run-Up,” with Jones Lang LaSalle, Cushman & Wakefield, CB Richard Ellis, Studley and Newmark Knight Frank each planning to send at least one team of five runners (team names include the “Sub-Primers” and “Victoria’s Secret”).  read more »