Chariot racing (, harmatodromía; ) was one of the most popular ancient Greek, Roman, and Byzantine sports. In Greece, chariot racing played an essential role in aristocratic funeral games from a very early time. With the institution of formal races and permanent racetracks, chariot racing was adopted by many Greek states and their religious festivals. Horses and chariots were very costly. Their ownership was a preserve of the wealthiest aristocrats, whose reputations and status benefitted from offering such extravagant, exciting displays. Their successes could be further broadcast and celebrated through commissioned odes and other poetry.

In standard Greek racing practise, each chariot held a single driver and was pulled by four horses, or sometimes two. Drivers and horses risked serious injury or death through collisions and crashes; this added to the excitement and interest for spectators. Most charioteers were slaves or contracted professionals. While records almost invariably credit victorious owners and their horses for winning, their drivers are often not mentioned at all. In the ancient Olympic Games, and other Panhellenic Games, chariot racing was one of the most important equestrian events, and could be watched by unmarried women. Married women were banned from watching any Olympic events but a Spartan noblewoman is known to have trained horse-teams for the Olympics and won two races, one of them as driver.

In ancient Rome, chariot racing was the most popular of many subsidised public entertainments, and was an essential component in several religious festivals. Roman chariot drivers had very low social status, but were paid a fee simply for taking part. Winners were celebrated and well paid for their victories, regardless of status, and the best could earn more than the wealthiest lawyers and senators. Racing team managers may have competed for the services of particularly skilled drivers and their horses. The drivers could race as individuals, or under team colours: Blue, Green, Red or White. Spectators generally chose to support a single team, and identify themselves with its fortunes. Private betting on the races raised large sums for the teams, drivers and wealthy backers. Generous imperial subsidies of "bread and circuses" kept the Roman masses fed, entertained and distracted. Organised violence between rival racing factions was not uncommon, but it was generally contained. Roman and later Byzantine emperors, mistrustful of private organisations as potentially subversive, took control of the teams, especially the Blues and Greens, and appointed officials to manage them.

Chariot racing faded in importance in the Western Roman Empire after the fall of Rome; the last known race there was staged in the Circus Maximus in 549, by the Ostrogothic king, Totila. In the Eastern Roman (Byzantine) Empire, the traditional Roman chariot-racing factions continued to play a prominent role in mass entertainment, religion and politics for several centuries. Supporters of the Blue teams vied with supporters of the Greens for control of foreign, domestic and religious policies, and imperial subsidies for themselves. Their displays of civil discontent and disobedience culminated in an indiscriminate slaughter of Byzantine citizenry by the military in the Nika riots. Thereafter, rising costs and a failing economy saw the gradual decline of Byzantine chariot racing.

Early Greece Images on pottery show that chariot racing existed in thirteenth century BC Mycenaean Greece. The first literary reference to a chariot race is in Homer's poetic account of the funeral games for Patroclus, in the Iliad, combining practices from the author's own time (c. 8th century) with accounts based on a legendary past.Homer. The Iliad, 23.257–23.652. The participants in this race were drawn from leading figures among the Greeks; Diomedes of Argos, the poet Eumelus, the Achaean prince Antilochus, King Menelaus of Sparta, and the hero Meriones. The race, which was one lap around the stump of a tree, was won by Diomedes, who received a slave woman and a cauldron as his prize. A chariot race also was said to be the event that founded the Olympic Games; according to one legend, mentioned by Pindar, King Oenomaus challenged suitors for his daughter Hippodamia to a race, but was defeated by Pelops, who founded the Games in honour of his victory.

Olympic Games

The Olympic Games were traditionally founded in 776 BC, by the Eleans, a wealthy, prestigious horse-owning aristocracy. Pindar, the earliest source for the Olympics, includes chariot racing among their five foundation events.Pindar, Isthmian Odes 1, edited and translated by Race, W. H., Loeb Classical Library. Cambridge, MA: Harvard University Press, 1997. Much later, Pausanias claims that chariot races were added only from 680 BC, and that the games were extended from one day to two days to accommodate them. In this tradition, the foot race of a stadion (approximately 600 feet) offered the greater prestige. Votive offerings associated with Olympic victories include horses and chariots.Montgomery, HC. The controversy about the origin of the Olympic Games: did they originate in 776 B.C.? The Classical Weekly, 1936 19.22, 169–174Mouratidis J., The 776 B.C. Date and Some Problems Connected with it, Canadian J Hist Sport. 1985; 16 (2) pp. 1–14 The single horse race (the ) was a late arrival at the games, dropped early in their history. The major chariot-races of the Olympic and other Panhellenic Games, were four-horse (, ) and two-horse (, ) events.

Pausanias describes the Olympic hippodrome of the second century AD, when Greece was part of the Roman Empire. The perimeter groundplan, southeast of the sanctuary itself, was approximately 780 meters long and 320 meters wide. Competitors raced from the starting-place counter-clockwise around the nearest (western) turning post, then turned at the eastern turning post and headed back west. The number of circuits varied according to the event. Spectators could watch from natural embankments to the north, and artificial embankments to the south and east. A place on the western side of the north bank was reserved for the judges. Pausanias does not describe a central dividing barrier at Olympia, but archaeologist Vikatou presumes one.

Pausanias offers several theories regarding the origins of an object named Taraxippus ("Horse-disturber"), an ancient round altar, tomb or Heroon embedded within one of the entrance-ways to the track. It was thought to be malevolent, as it terrified horses for no apparent reason when they raced past it, and was a major cause of crashes. Pausanias reports that consequently "the charioteers offer sacrifice, and pray that Taraxippus may show himself propitious". It might simply have marked the most dangerous and difficult section of track, at the semi-circular end. Pausanias describes very similar, identically named places in other Greek hippodromes. Their name may have been an epithet of Poseidon, patron deity of horses and horse-racing.

Races began with a procession into the hippodrome, while a herald announced the names of the drivers and owners. The tethrippon consisted of twelve laps. The most immediate and challenging aspect of the races for drivers, judges and stewards was ensuring a fair start, and keeping false starts and crushes to a minimum. Then as now, the marshalling of over-excited racehorses could prove a major difficulty. Various mechanical devices were used to reduce the likelihood of human error. Portable starting gates (hyspleges, singular: hysplex), employed a tight cord in a wooden frame, loosened to drop forwards and start the race. According to Pausanias, the chariot furthest from the start-line began to move, followed by the rest in sequence, so that when the final gate was opened, all the chariots would be in motion at the starting line. A bronze eagle (a sign of Zeus, who was patron of the Olympic games) was raised to start the race, and at each lap, a bronze dolphin (a sign of Poseidon) was lowered. The central pair of horses did most of the heavy pulling, via the yoke. The flanking pair pulled and guided, using their traces. Horse teams were highly trained, and tractable. Greek aficionadoes thought mares the best horses for chariot racing.

Owners and charioteers

In most cases, the owner and the driver of the Greek racing chariot were different persons. In 416 BC, the Athenian general Alcibiades had seven chariots in the race, and came in first, second, and fourth; evidently, he could not have been racing all seven chariots himself.Thucydides. History of the Peloponnesian War, 6.16.2. Chariot teams were costly to own and train, and the case of Alcibiades shows that for the wealthy, this was an effective and honourable form of self-publicity; they were not expected to risk their own lives. On the other hand, they were not necessarily dishonoured when they did. The poet Pindar praised Herodotes for driving his own chariot, "using his own hands rather than another's".Pindar. Isthmian Odes, 1.1.

Entries were exclusively Greek, or claimed to be so. Philip II of Macedon, pre-eminent through his conquest of most Greek states and self-promotion as a divinity, entered his horse and chariot teams in several major pan-Hellenic events, and won several. He celebrated the fact on his coinage, claiming it as divine confirmation of his legitimacy as Greek overlord.

Women could win races through ownership, though there was a ban on the participation of married women as competitors or even spectators at the Olympics, supposedly on pain of death; this was not typical of Greek festivals in general, and there is no consistent record of this ban, or the penalty's enforcement. The Spartan Cynisca, daughter of Archidamus II, twice entered and won the Olympic chariot race as owner and trainer.

Most charioteers were slaves or hired professionals. Drivers and their horses needed strength, skill, courage, endurance and prolonged, intensive training. Like jockeys, charioteers were ideally slight of build, and therefore often young, but unlike jockeys, they were also tall. The names of very few charioteers are known from the Greek racing circuits, Victory songs, epigrams and other monuments routinely omit the names of winning drivers.

The chariots themselves resembled war chariots, essentially wooden two-wheeled carts with an open back, though by this time chariots were no longer used in battle. Charioteers stood throughout the race. They traditionally wore only a sleeved garment called a xystis, which would have offered at least some protection from crashes and dust. It fell to the ankles and was fastened high at the waist with a plain belt. Two straps that crossed high at the upper back prevented the xystis from "ballooning" during the race The body of the chariot rested on the axle, so the ride was bumpy. The most exciting parts of the chariot race, at least for the spectators, were the turns at the ends of the hippodrome. These turns were dangerous and sometimes deadly. In a full-sized racing stadium, the chariots could reach high speeds along the straights, then overturn or be crushed along with their horses and driver by the following chariots as they wheeled around the post. Driving into an opponent to make him crash was technically illegal, but most crashes were accidental and often unavoidable. In Homer's account of Patroclus's funeral games, Antilochus inflicts such a crash on Menelaus.

Pan-Hellenic festivals