Errol Spence Jr. vs. Shawn Porter was a professional boxing match contested on September 28, 2019, for the WBC and IBF welterweight championship.

[4] Spence Jr. and Porter participated in a frenetic encounter from start to finish, with one CBS analyst declaring it a "fight of the year candidate".

Spence Jr., however, began attacking Porter's body and was able to slowly gain a slight edge on the judges' scorecards.

In the end, Spence Jr. was given a split decision win on the official scorecards, with Filipino judge Rey Danseco and Steve Weisfeld had it 116–111 for him and Larry Hazzard Jr tallied 115–112 for Porter.

Confirmed bouts:[6][7][8] ^Note 1 For WBC, and IBF welterweight titles ^Note 2 For WBC super middleweight title ^Note 3 For vacant WBA (Regular) super lightweight title The fight was telecast on Fox Sports pay per view in the United States, Sky Sports in the United Kingdom and via FITE TV on pay per view outside of North America.