Sebring CW

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Sebring Notes

After WW2, there were numerous military facilities across the United States without a defined peacetime purpose. One of those semi-abandoned facilities was Hendricks Army Airfield in Sebring, Highlands County, Florida. By 1950, Alec Ulmann, a Russian-American aeronautic engineer and motorsport fan, pioneered an American version of the 24 Hours of Le Mans, using the military Airfield in Sebring as a racing venue. Sebring International Raceway was born for that race and, since 1952, it hosts the 12 Hours of Sebring, an annual endurance race that nowadays is a part of the WeatherTech SportsCar Championship. The raceway was such a success that in 1959 the Formula One championship brought the first United States Grand Prix to Florida.

The benign climate of central Florida, with 250 sunny days a year, is ideal for motorsport most of the time. That’s part of the reason why Sebring International Raceway is one of the busiest raceways in the USA, with 175 races a year on average. Summers are rainy, with 60% of annual precipitation happening from June to September. There are two road courses in Sebring International Raceway: the Full Course and the Club Circuit, with average speeds of 91 mph and 72 mph. 

CW Notes

Sebring International Raceway's clockwise configuration delivers 6.020 kilometers of Florida's most historic endurance racing surface, combining 3.04 kilometers of asphalt with 0.7 kilometers of original concrete runways dating to the facility's 1941 origins as Hendricks Army Airfield. This 17-turn layout hosts the legendary 12 Hours of Sebring—one-third of endurance racing's informal Triple Crown alongside Le Mans and Daytona—where brutal concrete transitions and Central Florida heat create machinery-destroying conditions unmatched in North American motorsport. The track's character derives from decades of incremental modifications: the 1966 elimination of Webster Turns, creation of Green Park Chicane, and numerous repaving projects that intentionally preserved sections of coarse concrete punishing suspension components and driver stamina equally.

Sebring's defining challenges emerge from surface inconsistencies and high-speed technical sections. The concrete-to-asphalt transitions create violent jolts at racing speeds, while Turn 17 (the final corner onto the front straight) requires late-apex precision after the long back straight section. Sunset Bend, Tower Turn, and the various hairpins threading through former airport infrastructure create constant direction changes at speeds averaging 160+ kph for prototypes. Central Florida's subtropical climate delivers track temperatures exceeding 50°C during March's 12-hour classic, combining with humidity to create extreme tire degradation and cooling challenges. The facility's evolution from 5.2-mile original layout to current 3.7-mile configuration reflects safety improvements while maintaining the bumpy, unforgiving surface character that makes Sebring completion as impressive as victory. IMSA WeatherTech Championship, club racing, and amateur track days all contend with Florida's legendary rough-surface endurance test.

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Direction
Clockwise
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Uploaded Laps
399
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Length
5.83 km
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Vertical Gain
14 m
timer
Turns
17
speed
Average Speed
144 kph
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Average Lap Time
2:25.8
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Power to Weight Average
0.2
sports_motorsports Driver Name: Colin Mullan
Lap Time: 1:56.680
tire_repair Tire: 1 Slicks
speed vs Predict: -1.95s
Elevation Profile
S
sean7454 Chevrolet Camaro6 ZL1
7,074
S
Cody Bulkley Chevrolet Camaro6 SS 1LE
8,684
S
joeyazzata29 Chevrolet Camaro6 SS 1LE
6,318
SM
Justa2L Chevrolet Corvette C7 Z06
6,240
SM
fmcokc Chevrolet Corvette C7 Z06
SM
UrbanKnight Chevrolet Corvette C8 Stingray Z51
8,240
P
Dan Telfer Honda S2000 AP2
P
l30thelion Porsche 718 Cayman GT4
7,832
P
Soul Snatcher Porsche 718 Cayman GT4
SC
Stephen Ho Porsche 991.2 GT3 RS
SC
TRAKCAR Porsche 992.1 GT3 RS
SC
GoJoe 244 Porsche 992.1 GT3
8,874
L
Dirty Mike Racing Chevrolet Corvette C6 Z06
6,232
L
Suneal Nandigam Porsche 996.2 GT3
L
Todd Kaley Honda S2000 AP2
M
Neil Desai Subaru BRZ Performance Package
8,053
M
TD4610 Chevrolet Corvette Stingray C7
O
Colin Mullan Ligier LMP3 JS P3
7,305
O
Ringer Nova Proto NP02
O
Nigel Greensall Ligier LMP3 JS P3

Other Variations

Track Turns Length km Laps Avg Time Avg kph P/W Avg
Sebring (Club Circuit) 11 2.7 11 1:23.5 116 0.2
outlined_flag Report Wrong Data