The main event was a standard wrestling match, in which World Heavyweight Champion Batista defeated challenger Eddie Guerrero to retain his title.

The event was claimed to be "unmerciful" by Canadian Online Explorer's professional wrestling section, as they rated none of the matches higher than a five out of ten.

No Mercy was first held by World Wrestling Entertainment (WWE) as a United Kingdom-exclusive pay-per-view (PPV) in May 1999.

The main rivalry heading into No Mercy was between Batista and Eddie Guerrero over the World Heavyweight Championship.

On the September 16 episode of SmackDown!, Palmer Canon announced that Guerrero was the next challenger to Batista's World Heavyweight Championship.

[9] After the match, Randy peeled off the latex mask of the fan and revealed him to be his father, "Cowboy" Bob.

During the match, "Cowboy" Bob drove a U-Haul truck down to the ring and unloaded a casket.

brand pay-per-view event, The Great American Bash, The Legion of Doom (Road Warrior Animal and Heidenreich) defeated MNM (Joey Mercury and Johnny Nitro) to win the WWE Tag Team Championship.

[7] The storyline over the WWE United States Championship began when Booker T, Orlando Jordan, and Christian each explained why they thought they deserved a title match against the champion, Chris Benoit.

's on-screen general manager, then announced that Benoit could choose who he wanted to face for the title.

[14][13] In the next match Bobby Lashley, who made his WWE pay-per-view debut, faced Simon Dean.

[14][13] The third contest was a fatal 4-way in which Chris Benoit defended the United States Championship against Booker T, Christian, and Orlando Jordan.

Kennedy pinned Holly after he performed a Green Bay Plunge off the top rope.

[14][13] The sixth bout on the card was a casket match between The Ortons (Randy and "Cowboy" Bob) and The Undertaker.

[14][13] After the match, The Ortons locked The Undertaker in the casket and hit it numerous times with an axe.

[14][13] Next was the main event, which saw Batista defend the World Heavyweight Championship against Eddie Guerrero.

Towards the end of the match, Guerrero executed three vertical suplexes, and attempted to perform a Frog Splash.

[16] Canadian Online Explorer's professional wrestling section claimed the event was "unmerciful" and that it left fans "begging for mercy".

[21] Their feud was planned to continue, as Guerrero would have gone back to his villainous character and won the World Heavyweight Championship.

[25] The following month, on the edition of November 24 of SmackDown!, a match between Benoit and Booker T for the title ended in a no-contest after both men's shoulders were on the mat while pinning one another.

[26] Booker T defeated Benoit in the first match at Survivor Series,[23] and eventually won the vacant title after Randy Orton, Booker T's replacement due to a legitimate injury to his ankle at a house show,[27] defeated Benoit in the seventh and final match in January.