Welterweight

Welterweight is a weight class in combat sports. Originally the term welterweight was used only in boxing, but other combat sports like muay Thai, taekwondo, and mixed martial arts also use it for their own weight division system to classify the opponents. If used, welterweight is typically between lightweight and middleweight.

Etymology
The first known instance of the term is from 1831, meaning 'heavyweight horseman', later 'boxer or wrestler of a certain weight' by 1896. This sense comes from earlier welter, 'heavyweight horseman or boxer' from 1804, possibly from c. 15th century welt, meaning 'to beat severely'.

Professional boxing
A professional welterweight boxer's weight is greater than 140 pounds, and no more than 147 pounds (about 63–67 kg).

Current world champions
Current champions

The Ring magazine
As of May 18, 2024.

Keys:
 * Current The Ring world champion

BoxRec
.

Longest-reigning world welterweight champions
Below is a list of longest-reigning welterweight champions in boxing measured by the individual's longest reign. Career-total time as champion (for multiple-time champions) does not apply.

Top 10 most title defenses
Below is a list of most title defenses by welterweight champions in boxing measured by the individual's reign with the most title defenses. Career-total title defenses as champion (for multiple-time champions) does not apply.

Olympic champions
The current Olympic male welterweight division is set at 63.5 - 71 kg.

Kickboxing
The weight division system is different in each organisation, so the kickboxing weight divisions of some international organizations vary:
 * International Kickboxing Federation (IKF), welterweight (Pro & Amateur) 142.1 - 147 lb.
 * International Sport Karate Association (ISKA), welterweight 142.1 - 147 lb.
 * World Kickboxing Association (WKA), welterweight (Pro) upper limit 147.7 lb.
 * In Glory promotion, a welterweight division is up to 170 lb.
 * ONE Championship, welterweight upper limit 83.9 kg.

Bare-knuckle boxing
The limit for welterweight generally differs among promotions in bare-knuckle boxing:
 * In Bare Knuckle Fighting Championship, the welterweight division has an upper limit of 165 lb.
 * In BKB™, the welterweight division has an upper limit of 83 kg.

Olympic wrestling
Prior to 1996, the weight limit for welterweight was 74 kg/163 lb in Olympic wrestling. Since that time, amateur wrestling has named its weight classes by upper weight limit in kilograms.

Professional wrestling
In the US and Canada, there was a 145 lb limit in the early 20th century at least until the early 1920s.

In Mexico, the lucha libre commission's definition of the welterweight weight class is between 70 kg and 78 kg.

In the United Kingdom, the 1947 Admiral-Lord Mountevans rules set out seven weight divisions with maximum weight limits and called for champions to be crowned of each limit. This included Welterweight 11st 11 lb (165 lb) An earlier system of weight classes with different levels and more divisions - including Welterweight - existed under the 1930 All-In rules.

Catch wrestling
From the 1870s to the 1910s, the weight limit was 10st 8 lb (148 lb) for Lancashire catch-as-catch-can wrestling under the rules of Sporting Chronicle (Manchester, England).

Mixed martial arts
The welterweight limit, as defined by the Nevada State Athletic Commission and the Association of Boxing Commissions is 155 to 170 lb.

Current champions
This table is not always up to date. Last updated March 18, 2023.

Other sports
Other sports to include a welterweight division include the following:
 * Muay Thai has fixed its weight division similarly to boxing.
 * International Kickboxing Federation (IKF): muay Thai welterweight (pro and amateur) 142.1-147 lb or 64.59-66.8 kg
 * World Muay Thai Council (WMC), welterweight range is from 140 to 147 lb or 63.5 to 66.6 kg
 * World Muay Thai Federation (WMF, the official amateur organization), fixed welterweight from 143.3 to 147.7 lb for adult and junior
 * The official rules of shoot boxing define welterweights as between 65 and 67 kg.
 * In Olympic taekwondo, welterweight falls between 74 and 80 kg. At the weight classes for the Olympic games it is between 68 and 80 kg.