Willow Springs International Raceway

Willow Springs held its first race on November 23, 1953 in the Mojave high desert near Rosamond, California, and is the oldest permanent road course in the United States. The plan began as a replica of the Indianapolis oval before space constraints forced a road course; Ken Miles was among the group who planned the layout. Big Willow, the 2.5 mi (4.023 km), nine-turn main track, is unchanged from its 1953 configuration, and its high average speeds earned it the nickname “The Fastest Road in the West” almost from the outset.

The fast nine

The lap’s reputation rests on its sweepers. The lead-in to Turn 8, a long right-hand sweeper, is the fastest section of the racetrack, and the track bills the corner as the fastest turn west of the Mississippi. Turn 9, a decreasing-radius right with a dip before the apex, has caught out more drivers and riders than any other corner here. In between the straights sits the Omega (Turns 3-4): a sharp uphill left into the right-hand loop over the hilltop at The Balcony, chased by the quick Turn 5 left around a natural mound.

Desert institution

Bill Huth bought the facility in 1962 for $116,000 and grew it from 230 to 600 acres, adding the separate Streets of Willow circuit and, in 2003, the Horse Thief Mile alongside Big Willow. California declared the raceway a Point of Historical Interest in 1996, and Hollywood has kept coming back, from The Love Bug to Ford v Ferrari. In April 2025, CrossHarbor Capital Partners purchased the park with renovation plans developed with Singer Vehicle Design and Sonoma Raceway.

Corner-by-corner

Castrol Corner

Left

A 90-degree high-speed left-hander at the end of the front straight, approached at over 160 mph by the fastest machinery.

Rabbit Ear

Right
double apex
~137 m radius

A double-apex sweeping right-hander laid out as a half circle of 450 ft (137 m) radius, bending the lap back toward the uphill Omega complex.

Turn 3

Left

A sharp left-hand uphill corner, the opening move of the Omega complex (Turns 3-4), the most technical segment of the layout.

The Balcony

Right

The hilltop right-hand loop at the heart of the Omega, turning back downhill through a camber change; Bill Huth named it The Balcony in 1982 because watching from the hillside above felt like a balcony seat.

Turn 5

Left

A quick 90-degree left-hander around a natural mound at the bottom of the Omega's downhill exit, setting up the fastest sections of the track.

Monroe Ridge

Right

A right-hander rising over the crest of Monroe Ridge, where the rise can lift a car's inside wheel; suspension setup matters more here than anywhere on the lap.

Wing's Leg

Left

A slight downhill dogleg of roughly 10 degrees between Monroe Ridge and the Sweeper, also referred to as Repass Pass; the track's corner guide calls it the fastest bend on the raceway.

The Sweeper

Right

A long, high-speed right-hand sweeper roughly 800 ft (244 m) from entry to exit; the lead-in to this turn is the fastest section of the racetrack.

The run out of Wing's Leg into the Sweeper is the fastest stretch of the circuit, and the track bills Turn 8 as the fastest turn on any racetrack west of the Mississippi. Held nearly flat by the quickest machinery, it is the corner that underwrites Willow Springs' billing as "The Fastest Road in the West".

Turn 9

Right

A decreasing-radius right-hander with a big dip before the apex, releasing the cars onto the front straight; the track's corner guide notes that more drivers and riders have lost control here than at any other corner.