- Major League Baseball created the World Baseball Classic to try to promote the growth of the game in other countries, modeling it in large part after the World Cup and handling matters of advancing similarly in the inaugural event in 2006 (round-robin pool play, top 2 teams from each pool advance). Many people railed against the whole idea of the WBC itself, but only because they were worried that players could get hurt competing at such a high level when they would normally be in Spring Training.
- In the 2009 tournament, the pool play was double-elimination (with an unnecessary single-game final) rather than a standard round-robin pool.note Also, because both teams advancing from a first-round pool were in the same second-round pool, Japan and South Korea played five times, twice in each pool and once in the final. Pool play is not supposed to work that way!
- Baseball fans in general act like this. Any time there is any change in the sport—the designated hitter, Astroturf, the Wild Card, interleague play, expansion teams, polyester uniforms, the second Wild Card, etc.—many fans are up in arms.
- Many FOX Sports television viewers were disappointed in 2010 when FOX switched all of their individual sporting event themes for the NFL on FOX theme, feeling that while the theme is good, it should only be used for football and not baseball or NASCAR.
- Australian Rules Football has regular rule changes, all of which lead to massive fan outcry. Some work out for the better by most people's opinion (such as the rushed behind rule introduced in 2009) whilst others such as the "hands in the back" rule introduced in 2007 (explained in the other wiki) is almost universally hated.
- In a valiant but failing attempt to make water polo a higher scoring, more watchable game, the rules have (massively) changed about three times in less than a decade—the game was made faster (30 second shot clock instead of 35 for women), the pool longer (30 meters instead of 25 for men), only one hand can block a ball for field players instead of two, and the meter markings were changed to 2-5-7. At one point, they discussed removing basic fouls since a water polo foul is nothing like a "real" foul in other sports. The result? Coaches storming out of meetings, USA Water Polo receiving death threat emails, and teams completely falling apart—really.
- In all sports, whenever a sports team changes its logo, colors, name, or uniforms, expect there to be a large amount of criticism towards the new scheme. Notable examples in American sports include the Denver Broncos' dropping of the "Orange Crush" jerseys, the Milwaukee Brewers' change from their iconic "glove logo" to a Notre Dame ripoff, and just about all the Toronto Blue Jays' changes in the '90s and '00s.
- NASCAR. Tracks repaved. Tracks closed. New tracks added - doubly so for mile-and-a-half, mid-banked ovals. Dates changed. The vehicles. The Chase championship format. The championship sponsor. The rules themselves. Fans are divided on some of them.
- Modern Formula One is subjected to be burned, especially by '80s and '90s fans, because of rules and regulation that provides too much safety, subpar drivers, boring dominations, booster assisted cars, fake overtakes, low quality tires, horrible sounding engines, etc. Basically said, anything post Ayrton Senna sucks. This all in spite of the fact that, due to how far aerodynamics have come along, the worst team in 2014 is faster than the best team of 1994 on some tracks. Interlagos in particular would've had 2014's last-place qualifier (Pastor Maldonado) beat the time set by 1994's pole sitter (Ayrton Senna) by nearly four seconds.
- In the National Hockey League, even goal horns are subject to this. All it takes is the slightest hint of a change to the horn and/or accompanying song to trigger backlash from hockey fans.
- Many Association Football fans were enraged when FIFA announced the World Cup was expanding from 32 teams to 48, given the format's likely possibility of collusion among teams.
- For fans of Indiana high school basketball of a certain age (and even some younger ones), two words: class basketball. For decades, all of the state's high schools played for a single championship, allowing for David-and-Goliath matchups, most famously Milan High's run to the 1954 state title. The Milan team was the basis for the 1986 film Hoosiers. Then starting with the 199798 school year, the state split high school basketball into four enrollment-based classes, leading to an uproar that continues to this day.note
They Changed It Now It Sucks / Sports