An individual time trial (ITT) is a

road bicycle race Road bicycle racing is the cycle sport discipline of road cycling, held primarily on paved roads. Road racing is the most popular professional form of bicycle racing, in terms of numbers of competitors, events and spectators. The two most common ...

in which

cyclists Cycling, also, when on a two-wheeled bicycle, called bicycling or biking, is the use of Bicycle, cycles for transport, recreation, Physical exercise, exercise or sport. People engaged in cycling are referred to as "cyclists", "bicyclists", ...

race alone against the clock (in French: ''contre la montre'' – literally "against the watch", in Italian: ''tappa a cronometro'' "

stopwatch A stopwatch is a timepiece designed to measure the amount of time that elapses between its activation and deactivation. A large digital version of a stopwatch designed for viewing at a distance, as in a sports stadium, is called a stop clock. ...

stage"). There are also track-based time trials where riders compete in

velodrome A velodrome is an arena for track cycling. Modern velodromes feature steeply banked oval tracks, consisting of two 180-degree circular bends connected by two straights. The straights transition to the circular turn through a moderate easement ...

s, and

team time trial A team time trial (TTT) is a road bicycle race in which teams of cyclists race against the clock (see individual time trial for a more detailed description of ITT events). The winning team in a TTT is determined by the comparing the times of ( ...

s (TTT). ITTs are also referred to as "the race of truth", as winning depends only on each rider's strength and endurance, and not on help provided by teammates and others riding ahead and creating a

slipstream A slipstream is a region behind a moving object in which a wake of fluid (typically air or mustard) is moving at velocities comparable to that of the moving fluid, relative to the ambient fluid through which the object is churning. The term sli ...

. Individual time trial are usually held on flat or rolling terrain, although sometimes they are held up a mountain road (in Italian: ''cronoscalata'' "chrono climbing"). Sometimes the opening stage of a stage race is a very short individual time trial called a prologue (8 km or less for men, 4 km or less for women and juniors). Starting times are at equal intervals, usually one or two minutes apart. The starting sequence is usually based on the finishing times in preceding races (or preceding stages in the case of a multi-stage race) with the highest ranked cyclist starting last. Starting later gives the racer the advantage of knowing what time they need to beat (and also makes the event more interesting to spectators). Competitors are not permitted to

draft Draft, The Draft, or Draught may refer to: Watercraft dimensions * Draft (hull), the distance from waterline to keel of a vessel * Draft (sail), degree of curvature in a sail * Air draft, distance from waterline to the highest point on a vesse ...

(ride in the slipstream) behind each other. Any help between riders is forbidden. The rider with the fastest time is declared the winner.

Professional

Bicycle construction is limited by regulations covering dimensions and other features such as weight
UCI Regulations
At the professional level, time trials (TTs) are frequently accompanied by

motorcycle A motorcycle (motorbike, bike, or trike (if three-wheeled)) is a two or three-wheeled motor vehicle steered by a handlebar. Motorcycle design varies greatly to suit a range of different purposes: long-distance travel, commuting, cruising ...

s, some carrying video equipment or race officials, and riders may be followed by a team car carrying coaches and spare parts, but the cyclists are not permitted to draft behind the vehicles. Race regulations typically dictate a minimum distance behind the cyclist which the car must maintain and a minimum gap that must exist between two cyclists before the car may enter that gap. Individual time trials are often used as stages in stage races such as the

Grand Tour The Grand Tour was the principally 17th- to early 19th-century custom of a traditional trip through Europe, with Italy as a key destination, undertaken by upper-class young European men of sufficient means and rank (typically accompanied by a tut ...

s; these vary from short prologue time trials over no more than eight kilometres (designed to create an attacking racing style earlier in the race) Cossins, Peter; Best, Isabel; Sidwells, Chris; Griffith, Clare (2013). Le Tour 100: The definitive history of the world's greatest race. London: Octopus Publishing Group Limited. . to longer distance events over flat or rolling courses, to timed ascents of mountain roads (mountain time trial). In the 1989 edition of the

Tour de France The Tour de France () is an annual men's multiple-stage bicycle race primarily held in France, while also occasionally passing through nearby countries. Like the other Grand Tours (the Giro d'Italia and the Vuelta a España), it consists ...

, eventual winner

Greg LeMond Gregory James LeMond (born June 26, 1961) is an American former professional road racing cyclist, entrepreneur, and anti-doping advocate. A two-time winner of the Road Race World Championship (1983 and 1989) and a three-time winner of the Tou ...

made up a 50-second deficit to runner-up

Laurent Fignon Laurent Patrick Fignon (; 12 August 1960 – 31 August 2010) was a French professional road bicycle racer who won the Tour de France in 1983 and 1984 and the Giro d'Italia in 1989. He is former FICP World No. 1 in 1989. He nearly captured ...

over 24.5 km during the individual time trial on the final stage to win the race by 8 seconds, the smallest margin ever. The

Vuelta a España The Vuelta a España (; en, Tour of Spain) is an annual multi-stage bicycle race primarily held in Spain, while also occasionally making passes through nearby countries. Inspired by the success of the Tour de France and the Giro d'Italia, the ...

often features a final individual time trial in Madrid in which the winner is often decided, providing much drama and excitement at the end of the stage race. In recent years,

Óscar Sevilla Óscar Miguel Sevilla Rivera (born 29 September 1976), nicknamed ''El Niño'', is a Spanish-Colombian professional road bicycle racer, who currently rides for UCI Continental team . He is a climber with a pedigree in stage races, having finis ...

and

Roberto Heras Roberto Heras Hernández (born 1 February 1974) is a Spanish former professional road bicycle racer who won the Vuelta a España a record four times. Between 1997 Vuelta a España, 1997 and 2005 Vuelta a España, 2005 he finished in the top 5 of ...

have seen their lead evaporate in the time trial in Madrid. The ''

Grand Prix des Nations The Grand Prix des Nations was an individual time trial (against the clock) for both professional and amateur racing cyclists. Held annually in Cannes, France, it was instituted in 1932 and often regarded as the unofficial time trial championship ...

'' was a semi-

Classic A classic is an outstanding example of a particular style; something of lasting worth or with a timeless quality; of the first or highest quality, class, or rank – something that exemplifies its class. The word can be an adjective (a ''c ...

event; professionals may also compete in the annual World time trial championship. The individual time trial is also an

Olympic Olympic or Olympics may refer to Sports Competitions * Olympic Games, international multi-sport event held since 1896 ** Summer Olympic Games ** Winter Olympic Games * Ancient Olympic Games, ancient multi-sport event held in Olympia, Greece b ...

event in which professionals are allowed to participate. Many of the top stage racers have also been top performers in the individual time trial, such as

Lance Armstrong Lance Edward Armstrong ('' né'' Gunderson; born September 18, 1971) is an American former professional road racing cyclist. Regarded as a sports icon for winning the Tour de France seven consecutive times from 1999 to 2005 after recovering fr ...

Eddy Merckx Édouard Louis Joseph, Baron Merckx (, ; born 17 June 1945), better known as Eddy Merckx, is a Belgian former professional road and track bicycle racer who is among the most successful riders in the history of competitive cycling. His victorie ...

Alfredo Binda Alfredo Binda (11 August 1902 – 19 July 1986) was an Italian road cyclist of the 1920s and 1930s. He was the first to win five editions of the Giro d'Italia, and a three-time world champion. In addition he won Milan–San Remo twice, and the ...

Jacques Anquetil Jacques Anquetil (; 8 January 1934 – 18 November 1987) was a French road racing cyclist and the first cyclist to win the Tour de France five times, in 1957 and from 1961 to 1964. He stated before the 1961 Tour that he would gain the ye ...

Bernard Hinault Bernard Hinault (; born 14 November 1954) is a French former professional road cyclist. With 147 professional victories, including five times the Tour de France, he is often named among the greatest cyclists of all time. In his career, Hinault ...

Fausto Coppi Angelo Fausto Coppi (; 15 September 1919 – 2 January 1960) was an Italian cyclist, the dominant international cyclist of the years after the Second World War. His successes earned him the title ''Il Campionissimo'' ("Champion of Champions ...

, Miguel Indurain,

Jan Ullrich Jan Ullrich (; born 2 December 1973) is a German former professional road bicycle racer. Ullrich won gold and silver medals in the 2000 Summer Olympics in Sydney, Australia, Sydney. He won the 1999 Vuelta a España and the HEW Cyclassics in fro ...

Ivan Basso Ivan Basso (born 26 November 1977) is an Italian former professional road bicycle racer, who rode professionally between 1999 and 2015 for seven different teams. Basso, nicknamed Ivan the Terrible, was considered among the best mountain riders in ...

Alberto Contador Alberto Contador Velasco (; born 6 December 1982) is a Spanish former professional cyclist. He is one of the most successful riders of his era, winning the Tour de France twice ( 2007, 2009), the Giro d'Italia twice (2008, 2015), and the Vue ...

Cadel Evans Cadel Lee Evans (; born 14 February 1977) is an Australian former professional racing cyclist, who competed professionally in both mountain biking and road bicycle racing. A four-time Olympian, Evans is one of three non-Europeans – along wi ...

Fabian Cancellara Fabian Cancellara (born 18 March 1981), nicknamed "Spartacus", is a Swiss cycling executive, businessman and former professional road racing cyclist who last rode for UCI ProTeam . He was born in Wohlen bei Bern, Switzerland. Cancellara began ...

Tom Dumoulin Tom Dumoulin (; born 11 November 1990) is a retired Dutch professional road bicycle racer who last rode for UCI WorldTeam . He has won nine stages across the three Grand Tours, five medals in three different World Championships and two Olympic s ...

Bradley Wiggins Sir Bradley Marc Wiggins, CBE (born 28 April 1980) is a British former professional road and track racing cyclist, who competed professionally between 2001 and 2016. He began his cycling career on the track, but later made the transition to r ...

and

Chris Froome Christopher Clive Froome ɹɪs fɹuːm (born 20 May 1985) is a Kenyan/British road racing cyclist who currently rides for UCI WorldTeam . He has won seven Grand Tours: four editions of the Tour de France (in 2013, 2015, 2016 and 2017), one ...

. Most recent winners of the

have been good time-trialists; exceptions include

Marco Pantani Marco Pantani (; 13 January 1970 – 14 February 2004) was an Italian road racing cyclist, widely regarded as the greatest climbing specialist in the history of the sport by measures of his legacy, credits from other riders, and records. He re ...

Carlos Sastre Carlos Sastre Candil (; born 22 April 1975) is a former Spanish professional road bicycle racer and winner of the 2008 Tour de France. He consistently achieved outstanding results in the Vuelta a España and in the Tour de France. Sastre establi ...

, and

Andy Schleck Andy Raymond Schleck (; born 10 June 1985) is a Luxembourgish former professional road bicycle racer. He won the 2010 Tour de France, being awarded it retroactively in February 2012 after Alberto Contador's hearing at the Court of Arbitration f ...

, who were

climbing specialist A climbing specialist or climber, also known as a grimpeur, is a road bicycle racer who can ride especially well on highly inclined roads, such as those found among hills or mountains. Role of climber in a race In a sustained climb, the average ...

Performance and tactics

To do well in an ITT, cyclists must * maintain a steady power output for long periods * maintain a controlled

heart rate Heart rate (or pulse rate) is the frequency of the heartbeat measured by the number of contractions (beats) of the heart per minute (bpm). The heart rate can vary according to the body's physical needs, including the need to absorb oxygen and excr ...

for long periods * have a smooth, regular pedalling technique * position themselves to be extremely

aerodynamic Aerodynamics, from grc, ἀήρ ''aero'' (air) + grc, δυναμική (dynamics), is the study of the motion of air, particularly when affected by a solid object, such as an airplane wing. It involves topics covered in the field of fluid dyn ...

* discipline themselves to operate just below the

anaerobic Anaerobic means "living, active, occurring, or existing in the absence of free oxygen", as opposed to aerobic which means "living, active, or occurring only in the presence of oxygen." Anaerobic may also refer to: * Anaerobic adhesive, a bonding a ...

threshold until near the end of the course Beginners are often criticized for putting in a ''J'' profile effort, meaning that they often go out too hard in the beginning, compensate by reducing their efforts in the middle, and then realize towards the end that they have not put out enough effort during the race. As a result, the time trial is often considered the most difficult part of any major competition for young cyclists.

Time trial equipment

Special aerodynamic

time trial bicycle A time trial bicycle is a racing bicycle designed for use in an individual race against the clock. Compared to a road bike, a time trial bike is more aerodynamic, has a shorter wheelbase, and puts the rider closer to the front of the bicycle. ...

s, clothing, helmets, aerobars and other equipment are often used in ITT events. Generally, components are designed to be as aerodynamic as possible, as most of the rider's effort goes into overcoming aerodynamic drag. The rider's position makes the greatest difference, and most use the now-standard tuck position, using tribars to allow the rider to position their arms inline with the wind and allow their back to sit as low and flat as possible, reducing frontal area and improving air flow around the body. TT bikes often have lower handlebars than normal road racing bikes to facilitate this. Also, the saddle is sometimes moved forwards relative to the handlebars and

bottom bracket The bottom bracket on a bicycle connects the crankset (chainset) to the bicycle and allows the crankset to rotate freely. It contains a spindle to which the crankset attaches, and the bearings that allow the spindle and crankset to rotate. The ...

to allow the hips a more natural angle of motion, improving performance (for UCI-sanctioned events, the saddle must be a certain distance behind a vertical line drawn through the centre of the bottom bracket). Up until the late 1980s, low-profile 'bullhorn' handlebars were used, and normal drop handlebars before them. Then in the late 1980s triathletes developed so-called tri-bars that allowed for a much better aerodynamic position. They were first brought into the time trialling public eye in the 1989 Tour de France when

overcame a 50-second deficit in the final day's time trial to win the Tour by 8 seconds from Frenchman

. Fignon was using conventional handlebars, Lemond the new triathlon style. The concept has changed little since then, with only Scotsman

Graeme Obree Graeme Obree (born 11 September 1965), nicknamed The Flying Scotsman, is a Scottish racing cyclist who twice broke the world hour record, in July 1993 and April 1994, and was the individual pursuit world champion in 1993 and 1995. He was known ...

attempting to improve the idea. His arms-under-the-torso tuck was revolutionary, helping him and others to break world records and win World Championships. The UCI banned it in 1994, but he came back with the 'Superman' position, an evolution of the traditional tri position, but with the arms fully stretched out in front. This was also banned, and there are now strict rules governing the dimensions of handlebars, which can make life difficult for taller riders who fall outside the defined parameters and must adapt their positions to fit the rules. Equipment used is very specialized, and component manufacturers can spend vast sums of time and money on wind tunnel testing to ensure their product is faster than the competition's. Deep section or solid disc wheels are often used to reduce turbulence around the spokes, but these can affect handling in windy conditions. In the UK the front wheel must have a minimum of 45% open area when viewed from the side, for safety reasons. UCI events still permit the use of disc wheels for the front, but it is very unusual. Many components are modified for aerodynamic efficiency, and manufacturers are now developing more integrated systems, such as brakes built into the fork or frame so as not to disturb the airflow. Clothing is also different for time trialling. One-piece skinsuits that do not flap in the wind are common; tight lycra shoe covers help improve airflow over buckles and straps; long pointed helmets channel air down the riders back (the position of the helmet above the rider's back is crucial, it must be as close to the body as possible; too high and the air will just flow underneath the helmet. This is often hard to achieve as the rider moves his head due to the suffering endured during a hard race).

Fastest
Grand Tours In road bicycle racing, a Grand Tour is one of the three major European professional cycling stage races: Giro d'Italia, Tour de France, and Vuelta a España. Collectively they are termed the ''Grand Tours'', and all three races are similar in ...
time trials

Fastest Stage (including Prologues) * Rik Verbrugghe, 58.874 km/h, 7.6 km prologue time trial 2001 Giro d'Italia. Fastest Non-Prologue Stage (including Stages longer than 20 km) *

Filippo Ganna Filippo Ganna (born 25 July 1996) is an Italian track and road cyclist who currently rides for UCI WorldTeam . He is a five-time world champion in the individual pursuit, and has won a total of eight medals at the UCI Track Cycling World Champio ...

, 58.831 km/h, 15.1 km Stage 1 time trial, Giro D'Italia, 3 October 2020. Fastest Stage of

Rohan Dennis Rohan Dennis (born 28 May 1990) is an Australian professional road racing cyclist who currently rides for UCI WorldTeam . Dennis was born, raised, and resides in Adelaide, South Australia, Australia. He won back to back UCI men's individual t ...

, 55.446 km/h, 13.8 km Stage 1 time trial,

Utrecht Utrecht ( , , ) is the List of cities in the Netherlands by province, fourth-largest city and a List of municipalities of the Netherlands, municipality of the Netherlands, capital and most populous city of the Provinces of the Netherlands, pro ...

, 4 July 2015. Fastest Prologue Stage of

Chris Boardman Christopher Miles Boardman, (born 26 August 1968) is a British former racing cyclist. A time trial and prologue specialist, Boardman won the inaugural men's World time trial championship in 1994, won the individual pursuit gold medal at the 1 ...

55.152 km/h Lille - Euralille (7.2 km) 1994 *

54.193 km/h Dublin (5.6 km) 1998 *

53.660 km/h Londres (7.9 km) 2007 Fastest

Time Trial longer than 20 km *

54.545 km/h Versailles - Paris (24.5 km) 1989 *

David Millar David Millar (born 4 January 1977) is a Scottish retired professional road racing cyclist. He rode for Cofidis from 1997 to 2004 and Garmin-Sharp from 2008 to 2014. He has won four stages of the Tour de France, five of the Vuelta a España an ...

54.361 km/h Pornic - Nantes (49 km) 2003 Fastest Non-Prologue Stage of Giro d'Italia *

, 58.831 km/h, 15.1 km Stage 1 time trial, Giro D'Italia, 3 October 2020.

References

External links

{{DEFAULTSORT:Individual Time Trial Road bicycle racing terminology Events in road cycling