Keg-tossing (or keg toss or weight over bar) is a sport that involves the heaving of a standard 15.5 gallon beer keg. Most people would refer to this type of keg as a "half-keg" or "half-barrel." The keg must be completely emptied before it should be tossed to avoid injuries. There are many different types of keg-tossing, as it is practiced throughout the world. In Ireland, the keg is typically thrown over upwards and the height of the toss determines the winner.

The newest way to toss a keg combines techniques of both the discus and hammer throw. This updated form of keg-tossing does not require the athlete to toss the keg high, rather they are required to try to throw it the farthest distance. Athletes are given three attempts to throw the keg and the winner is determined by measuring the distance tossed. The one who throws the keg the furthest wins.

The basic technique for tossing the keg involves swinging the keg in a pendulum like a manner and releasing the keg when it is at its apex. A more experienced athlete uses a spin method similar to a hammer throw. The keg is again released when it is at its apex, allowing for the maximum distance.

In strongman competitions, several variations of the traditional event has been used throughout the years. In 1980 World's Strongest Man, 'weight over bar' event was introduced where the competitors had to throw a 25.5 kg (56 lb) weight derived from the legendary Highland games using only 1 arm for max height over a bar (A heavy block of iron is attached to a fixed small ring which itself is attached to a freely moving large ring, used to grip the weight. The weight was derived from the imperial unit Stone, where a weight of 4 stones (1 stone = 14 lb) was used as a counterbalance for weight measurements when buying or selling in the ancient Scottish markets).^[1] In 1992 World's Strongest Man, the competitors had to throw a 30 kg (66 lb) Thor's hammer but this time using both arms for max height. In 1993 World's Strongest Man, the competitors had to throw a 20 kg (44 lb) concrete block over a contraption which was called the Trojan wall again for a max height. In 2010 World's Strongest Man, the competitors had to throw 8 beer kegs of increasing weights ranging from 17-24 kg over a 4 meter bar in the fastest time. At the 2017 Arnold Strongman Classic, the competitors had to throw very heavy sandbags over a 15 ft bar for max weight. In all of the variations, the weights are thrown overhead and to the rear of the thrower, and must be thrown over the top of the bar.

Max height/ Max weight

• Highland games one arm weight over bar – 25.5 kg (56 lb) over 6.17 m (20 ft 3 in) by Hafþór Júlíus Björnsson (2022)^[2]
• David Webster memorial one arm sandbag over bar – 25.5 kg (56 lb) over 5.79 m (19 ft 0 in) by Hafþór Júlíus Björnsson (2024)^[3]
• Keg toss – 12.5 kg (28 lb) over 8.54 m (28 ft 0 in) by Hafþór Júlíus Björnsson (2014)^[4]
• Keg toss – 15 kg (33 lb) over 7.75 m (25 ft 5 in) by Brian Shaw (2021)
• Keg toss – 25 kg (55 lb) over 6.00 m (19 ft 8 in) by Hafþór Júlíus Björnsson (2012)^[5]
• Sandbag over bar – 45.4 kg (100 lb) over 4.57 m (15 ft 0 in) by Hafþór Júlíus Björnsson (2017)^[6]

Speed

• Keg toss – 8 kegs (18–25 kg) over 4.8 m (15 ft 9 in) bar in 15.71 sec by Žydrūnas Savickas (2013)
• Keg toss – 8 kegs (18–25 kg) over 4.9 m (16 ft 1 in) bar in 16.35 sec by Hafþór Júlíus Björnsson (2014)^[7]
• Keg toss – 8 kegs (18–24 kg) over 5.2 m (17 ft 1 in) bar in 21.04 sec by Krzysztof Radzikowski (2013)
• Keg toss – 10 kegs (18–25 kg) over 4.6 m (15 ft 1 in) bar in 21.02 sec by Aivars Šmaukstelis (2023)^[8]

Note: During Savickas's performance, the rule was to start while the athletes were already touching the first keg. During Björnsson, Radzikowski, and Šmaukstelis's performances the starting signal was given when the athletes had to stand back in a line, having had to run forward a few feet in order to grab the first keg.