There have been some high-profile bouts resulting in controversial decisions lately, including the most recent bout between welterweights Devon Alexander and Lucas Matthysse.
Some of the results from this year's bouts have fans calling out "robbery," but most of them have been close and competitive, resulting in a subjective opinion about who really won. This is what makes the sport what it is, and it creates a good debate between fans.
These are five of the most controversial decisions of the year.
Daniel Geale defeats Sebastian Sylvester by split-decision (118-110, 110-118 and 118-112).
Krzysztof Wlodarczyk defeats Francisco Palacios by split-decision (116-113, 118-112 and 113-115).
Julio Cesar Chavez Jr defeats Sebastian Zbik by majority decision (114-114, 116-112 and 115-113)
Ryan Coyne defeats David McNewmar by unanimous decision (116-114, 115-113 and 115-113).
Mauricio Herrera defeats Mike Dallas Jr. by majority-decision (98-92, 95-95 and 96-94).
Lateef Kayoda defeats Nicholas Iannuzzi by unanimous decision (98-91, 95-94 and 97-92).
Luis Franco defeats Leonilo Miranda by split-decision (94-96, 97-93 and 96-94).
Aaron Pryor Jr. went into his bout with former title challenger Librado Andrade as a 6-to-1 betting underdog.
Andrade was ranked as the seventh best super-middleweight in the world according to Ring Magazine before losing a majority-decision to the son of the Hall-of-Famer.
The bout started with Pryor using his movement and reach to out-box Andrade and land at will. Andrade's lack of defense makes it hard for him to win rounds as he is constantly being hit flush, but his iron-chin usually keeps him from getting hurt.
Pryor took the harder blows throughout the 10-round distance but he landed more and appeared to get the better of his opponent in most of the rounds.
The judges awarded the decision to Pryor with the scores 96-94, 96-94 and 95-95.
In the first major upset of the year, Mauricio Herrera defeated the previously unbeaten Ruslan Provodnikov by unanimous decision.
The bout from January was featured as the main event on Friday Night Fights and it was an exciting back-and-forth fight with a total of 1784 punches thrown according to CompuBox.
Provodnikov did more damage, but it was mostly done in single rounds and not over the course of the bout. Herrera, with his left eye swollen shut early on, out-worked Provodnikov and paced himself to win the majority of the rounds.
The judges scored it 116-112, 115-113 and 116-112 all for Herrera.
CompuBox punch stats favored Provodnikov as he landed 326 of 886 while Herrera landed 300 of 898. Provodnikov also out-landed Herrera in power shots 229 to 184.
Mexican legend Erik “Terrible” Morales returned to the ring for the fourth time since coming out of retirement to face the very dangerous prospect Marcos Maidana.
It was perceived as a mismatch by many boxing experts and was everything but. A very competitive 12 rounds of action resulted in a controversial majority decision victory for the Argentinian-born boxer, leaving many fans calling for a rematch.
Punch Stats: Maidana 195/985 for 20 percent; Morales 157/528 for 30 percent.
Official Decision: 114-114, 116-112 Maidana and 116-112 Maidana.
In Devon Alexander's hometown in Missouri, he got the nod with a split-decision victory over hard-punching Lucas Matthysse over 10 rounds of welterweight action.
Alexander stood toe-to-toe with Matthysse for the majority of the bout and was even knocked down in Round 4 for the first time in his career.
Matthysse out-landed Alexander and hurt him on more than one occasion. There weren't many spots where Alexander did damage, but he did have some flurries that could have stolen the rounds.
Official Decision: 96-93 Alexander, 96-93 Matthysse and 95-94 Alexander
Total Punch Connects: Alexander 116/562; Matthysse 139/675
Power Punch Connects: Alexander 95/301; Matthysse 124/509
From the Lanxess-Arena in Cologne, Germany WBA Super World Middleweight Champion Felix Sturm successfully defended his title after defeating Matthew Macklin by split-decision.
It was a hard-fought fight throughout, but it was the German who got the hometown decision, and it is a fairly controversial one.
The judge who scored it for Macklin was probably impressed with his work-rate and volume of punches being thrown throughout the 12-round distance. Sturm was a lot more accurate than Macklin, but he was far less active.
One scorecard was scored 115-113 for Macklin while the other two were scored 116-112 for “Leonidas,” who was fighting in his 16th title fight since he began his professional career 10 years ago.