One of the fastest horses of the 1800s was a thoroughbred racehorse named Flying Childers. Born in 1714, Flying Childers had an exceptional racing career and was considered one of the greatest horses of his time.

Flying Childers was renowned for his incredible speed and unbeatable performances on the racecourse. He was owned by the Duke of Devonshire and trained by William Cavendish, who recognized his remarkable talent. Flying Childers raced during a time when races were typically match races, where two horses competed against each other.

His most famous and remarkable race occurred in Newmarket in 1721, where he competed against a horse named Almanzor. Flying Childers won the race in three heats, displaying such extraordinary speed that it was said he ran faster than any horse of his time. His performances gained him a reputation as one of the fastest horses of the era.

While there is no official timing or recorded race times from that period, Flying Childers' reputation as a supremely fast horse has endured throughout history. He became a highly sought-after sire, passing on his exceptional speed and athleticism to future generations of racehorses.

It's important to note that due to the limited available information and advancements in timing technology during the 18th century, exact race times and speed measurements are not available for horses like Flying Childers. The assessment of their speed and status as one of the fastest horses of the 1800s is based on historical accounts, records, and the reputation they garnered during their racing careers.