It was the final No Mercy event held under the WWF name as the promotion was renamed to World Wrestling Entertainment (WWE) in May 2002.
The main event was a Triple Threat No Disqualification match—a match involving three competitors against each other and it would be decided only through pinfall or submission.
Stone Cold Steve Austin defended the title against Kurt Angle and Rob Van Dam.
No Mercy was first held by the World Wrestling Federation (WWF, now WWE) as a United Kingdom-exclusive pay-per-view (PPV) in May 1999.
[8] The predominant rivalry heading into the event was between Stone Cold Steve Austin, Kurt Angle and Rob Van Dam.
The new Commissioner was revealed to be Mick Foley, who appeared at the spot and announced that Austin would defend the WWF Championship against Van Dam and Angle in a Triple Threat match at No Mercy.
[12] On the October 21 edition of Heat, Foley announced that the Triple Threat match would be contested under no disqualification rules.
[11] On the October 11 edition of SmackDown!, Jericho defeated Van Dam to become the #1 contender for the WCW Championship at No Mercy.
[14] On the October 4 edition of SmackDown!, Edge and the APA defeated Christian and X-Factor in a six-man tag team match.
[10] On the October 8 edition of Raw, it was announced that Christian would defend the Intercontinental Championship against Edge in a Ladder match at No Mercy.
[15] On the September 27 edition of SmackDown!, Booker T and Test defeated The Brothers of Destruction (The Undertaker and Kane) to win the WCW Tag Team Championship.
After the match, the Dudley Boyz attacked Big Show with the WWF Tag Team Championship belts and suplexed Spike on a table outside the ring.
[12] On the October 15 edition of Raw, the Dudley Boyz defeated Big Show in a Handicap match.
[16] On the October 18 edition of SmackDown!, Commissioner Mick Foley announced that the Dudley Boyz would defend the WWF Tag Team Championship against Big Show and Tajiri at No Mercy.
[15] On the September 24 edition of Raw is War, Alliance member Stacy Keibler confronted her partner, Torrie Wilson in a backstage segment asking her if she was involved with Tajiri, a WWF wrestler.
[17] On the October 1 edition of Raw is War, Tazz and Stacy defeated Tajiri and Torrie in a mixed tag team match.
Acolytes Protection Agency (Faarooq and Bradshaw) defeated Chris Kanyon and Hugh Morrus in a tag team match.
In the main event of Heat, Billy Kidman defended the WCW Cruiserweight Championship against Scotty 2 Hotty.
Kidman pinned Scotty with a backslide and put his feet on the ropes for leverage to retain the Cruiserweight Championship.
Dudley Boyz continued to assault Tajiri until Show tagged in and started dominating the match.
Stone Cold Steve Austin defended the title against Kurt Angle and Rob Van Dam.
In the early goings of the match, Angle dominated Austin and Van Dam but he could not gain momentum for so long.
Van Dam climbed the top rope and attempted to hit a Five-Star Frog Splash, but both men moved out of the way.
Moments later, Austin hit a Stone Cold Stunner on Angle and attempted a pinfall but Van Dam broke up the pin.
Back in the ring, Austin hit a Stone Cold Stunner on Van Dam and pinned him to retain the WWF Championship.
[20] On the October 25 episode of SmackDown, Kidman, Rhyno, Hurricane and the Dudley Boyz were attacked and fired by The Alliance for losing their respective titles.
[21] On the October 29 edition of Raw is War, Vince McMahon announced his team of WWF representatives to take on The Alliance at Survivor Series.
The team consisted of Chris Jericho, The Rock, Kurt Angle and The Brothers of Destruction (The Undertaker and Kane).
[22] On the November 1 edition of SmackDown, Vince announced that Shane's team of Alliance representatives consisted of Stone Cold Steve Austin, Kurt Angle, Booker T, Rob Van Dam and himself.
[25] It was also the final No Mercy to be held before the introduction of the brand extension in March 2002, in which the promotion divided its roster between the Raw and SmackDown!