This article lists the 12 differentcombat sports and their results for 2018.
United States won both the gold and overall medal tallies.| Date | Location | Winner | Loser | Weight | Titles | Report |
|---|---|---|---|---|---|---|
| January 27 | Riga, Latvia | Oleksandr Usyk | Mairis Briedis | Cruiserweight | WBC, WBO | report |
| February 17 | Manchester, England | George Groves | Chris Eubank Jr. | Super middleweight | WBA (Super) | report |
| March 3 | New York City, United States | Deontay Wilder | Luis Ortiz | Heavyweight | WBC | report |
| March 10 | San Antonio, United States | Mikey Garcia | Sergey Lipinets | Light welterweight | IBF | |
| March 31 | Cardiff, Wales | Anthony Joshua | Joseph Parker | Heavyweight | WBA (Super), IBF, WBO, IBO | report |
| May 5 | Los Angeles, United States | Gennady Golovkin | Vanes Martirosyan | Middleweight | WBA (Super), WBC, IBO | |
| May 12 | New York City, United States | Vasyl Lomachenko | Jorge Linares | Lightweight | WBA (Super) | |
| May 19 | Quebec City, Canada | Adonis Stevenson | Badou Jack | Light heavyweight | WBC | |
| July 21 | Moscow, Russia | Oleksandr Usyk | Murat Gassiev | Cruiserweight | WBA (Unified), WBC, WBO, IBF | report |
| July 28 | Los Angeles, United States | Mikey Garcia | Robert Easter Jr. | Lightweight | WBC, IBF | |
| August 4 | Atlantic City, United States | Eleider Álvarez | Sergey Kovalev | Light heavyweight | WBO | |
| September 15 | Las Vegas, United States | Canelo Álvarez | Gennady Golovkin | Middleweight | WBA (Super), WBC, IBO | report |
| September 22 | London, England | Anthony Joshua | Alexander Povetkin | Heavyweight | WBA (Super), IBF, WBO, IBO | |
| September 28 | Jeddah, Saudi Arabia | Callum Smith | George Groves | Super middleweight | WBA (Super) | report |
| October 13 | Omaha, United States | Terence Crawford | José Benavidez Jr. | Welterweight | WBO | |
| October 20 | Boston, United States | Demetrius Andrade | Walter Kautondokwa | Middleweight | WBO | |
| November 10 | London, England | Oleksandr Usyk | Tony Bellew | Cruiserweight | WBA (Super), WBC, WBO, IBF | |
| December 1 | Los Angeles, United States | Deontay Wilder SDTyson Fury | Heavyweight | WBC | report | |
| December 1 | Quebec, Canada | Oleksandr Gvozdyk | Adonis Stevenson | Light heavyweight | WBC | |
| December 8 | New York City, United States | Vasyl Lomachenko | José Pedraza | Lightweight | WBA (Super), WBO | |
| December 15 | New York City, United States | Canelo Álvarez | Rocky Fielding | Super middleweight | WBA (Regular) | |
United States won the overall medal tally.
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United States won both the gold and overall medal tallies.
United States won the overall medal tally.
United States won 3 gold medals each. Mexico won the overall medal tally.
United States won the overall medal tally.
United States won the overall medal tally.
United States won the overall medal tally.
United States; Second:
United States won both the gold and overall medal tallies.
United States won both the gold and overall medal tallies.
United States won both the gold and overall medal tallies.
United States won 6 overall medals each.
United States won both the gold and overall medal tallies.
United States won both the gold and overall medal tallies.
United States won both the gold and overall medal tallies.
United States won both the gold and overall medal tallies.
United States won 7 overall medals each.
United States won the gold medal tally. The United States and