PIT BOARD

TRACK SCIENCE - USDA SSURGO

24%CLAY

9%SAND

67%SILT

Ustolls - Well drained - Harney silt loam, 1-3% slopes

High silt content -- this track slicks up fast as moisture leaves. Groove migrates upward as rubber builds. Expect heavy-to-slick transition in 15-25 laps on a dry night. Watch for a narrow rubber groove forming at the top in features.

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Rush County Speedway

La Crosse, KS -- 1/4 mile bullring - Elev. 2,057 ft

DIRT OVAL - THE BULLRING

1/4 mile = shortest gearing in your chart. On a Winters 4.11, start gear set 7-9 (FDR 7.9-8.2). High silt surface slicks fast -- bring a set softer and a set shorter. Elevation 2,057 ft means DA will run 2,500-4,000 ft on a warm summer night -- richen your carb accordingly.

1/4 mile

SIZE

clay

SURFACE

LOW

BANKING

2,057 ft

ELEVATION

67%

SILT PCT

IMCA

SANCTIONED

TIMEGRAM - RUSH COUNTY SPEEDWAY FRAMEinkwell.wiki/rush-county-speedway-ks SETUP TOOLSSTAGGER - SCALE - GEAR - HUNTER FAN ZONELIVE AUDIO - NEARBY TRACKS

Rush County Fairgrounds, La Crosse, KS. Quarter-mile bullring dirt oval on the Rush County Fairgrounds. Home of the Bullring 305 Nationals. High-silt Harney loam surface transitions quickly on dry nights. 2026 season adds full IMCA sanctioning: Modifieds, Stock Cars, Northern SportMods, Hobby Stocks, Sport Compacts. Nearby: RPM Speedway Hays 26 mi, WaKeeney Speedway 45 mi, Dodge City Raceway Park 69 mi.

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