Monadnock Speedway is an asphalt oval in Winchester, NH. Density altitude, cross weight, stagger and tire pressure decide your night. The live DA above is the number to set up from.
As temperature, humidity and barometric pressure shift across the day near Winchester, the density altitude above moves with them — and so should your jetting and tune. Most weather apps show sea-level-corrected pressure, which gives the wrong DA; racer.wiki uses uncorrected station pressure for the real number, the same math a Kestrel runs. Read the full density altitude guide →
Custom race shirts, pit crew hoodies, and all-over print jerseys for Monadnock Speedway fans and drivers. Search 725 dirt tracks for logo art, add your number, live mockup — no MyRacePass $72/yr or design fees.
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