| Venue: Carioca Arena (Hall 2) at Olympic Training Center, Barra da Tijuca (West Zone of Rio de Janeiro). | | Olympic Champion from 2012 Judo Men Under 81kg - Jae-bum Kim (KOR). |
| | | time | Judoca 1 | score | Judoca 2 | | 1-:-- | Travis Stevens |  USA | 000-100 | Khasan Khalmurzaev |  RUS |
| | | time | Judoca 1 | score | Judoca 2 | | 1-:-- | Matteo Marconcini |  ITA | 000-100 | Sergiu Toma |  UAE | | 1-:-- | Takanori Nagase |  JPN | 001-000 | Avtandil Tchrikishvili |  GEO | | 1-:-- | Matteo Marconcini | ITA | 100-000 | Ivaylo Ivanov |  BUL | | 1-:-- | Takanori Nagase | JPN | 100-000 | Antoine Valois-Fortier |  CAN |
| | | time | Judoca 1 | score | Judoca 2 | | 1-:-- | Avtandil Tchrikishvili | GEO | 000-100 | Travis Stevens | USA | | 1-:-- | Sergiu Toma | UAE | 000-100 | Khasan Khalmurzaev | RUS |
| | | time | Judoca 1 | score | Judoca 2 | | 1-:-- | Matteo Marconcini | ITA | 100-000 | Ivaylo Ivanov | BUL | | 1-:-- | Takanori Nagase | JPN | 100-000 | Antoine Valois-Fortier | CAN |
| | | time | Judoca 1 | score | Judoca 2 | | 1-:-- | Avtandil Tchrikishvili | GEO | 011-000 | Matteo Marconcini | ITA | | 1-:-- | Avtandil Tchrikishvili | GEO | 000-000 | Juan Diego Turcios |  ESA | | 1-:-- | Matteo Marconcini | ITA | 110-010 | Valeriu Duminică |  MDA | | 1-:-- | Avtandil Tchrikishvili | GEO | 001-000 | Iván Felipe Silva |  CUB | | 1-:-- | Juan Diego Turcios | ESA | 100-000 | Roman Moustopoulos |  GRE | | 1-:-- | Joachim Bottieau |  BEL | 000-000 | Matteo Marconcini | ITA | | 1-:-- | Valeriu Duminică | MDA | 002-000 | Srđan Mrvaljević |  MNE | | 1-:-- | Matteo Marconcini | ITA | 100-000 | Kodo Nakano |  PHI |
| | | time | Judoca 1 | score | Judoca 2 | | 1-:-- | Ivaylo Ivanov | BUL | 000-100 | Travis Stevens | USA | | 1-:-- | Ivaylo Ivanov | BUL | 010-000 | Lee Seung-soo |  KOR | | 1-:-- | Travis Stevens | USA | Shakhzodbek Sabirov- |  UZB | 000 | | 1-:-- | Ivaylo Ivanov | BUL | 110-000 | Frank de Wit |  NED | | 1-:-- | Eoin Coughlan |  AUS | 000-100 | Lee Seung-soo | KOR | | 1-:-- | Travis Stevens | USA | Robin Pacek- |  SWE | 000 | | 1-:-- | Shakhzodbek Sabirov | UZB | 100-001 | Josateki Naulu |  FIJ |
| | | time | Judoca 1 | score | Judoca 2 | | 1-:-- | Takanori Nagase | JPN | 000-001 | Sergiu Toma | UAE | | 1-:-- | Takanori Nagase | JPN | 100-000 | Paul Kibikai |  GAB | | 1-:-- | Victor Penalber |  BRA | 001-101 | Sergiu Toma | UAE | | 1-:-- | Takanori Nagase | JPN | 001-000 | László Csoknyai |  HUN | | 1-:-- | Paul Kibikai | GAB | 000-000 | Hussein Al-Aameri |  IRQ | | 1-:-- | Victor Penalber | BRA | 100-000 | Marlon Acácio |  MOZ | | 1-:-- | Sven Maresch |  GER | 000-101 | Sergiu Toma | UAE |
| | | time | Judoca 1 | score | Judoca 2 | | 1-:-- | Antoine Valois-Fortier | CAN | 000-010 | Khasan Khalmurzaev | RUS | | 1-:-- | Antoine Valois-Fortier | CAN | 010-010 | Emmanuel Lucenti |  ARG | | 1-:-- | Khasan Khalmurzaev | RUS | 010-000 | Mohamed Abdelaal |  EGY | | 1-:-- | Antoine Valois-Fortier | CAN | 001-000 | Loïc Pietri |  FRA | | 1-:-- | Nacif Elias |  LIB | 000-100 | Emmanuel Lucenti | ARG | | 1-:-- | Khasan Khalmurzaev | RUS | 000-000 | Saeid Mollaei |  IRI | | 1-:-- | Uuganbaataryn Otgonbaatar |  MGL | 000-101 | Mohamed Abdelaal | EGY |
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| Pool A | | Avtandil Tchrikishvili | GEO | | Iván Felipe Silva | CUB | | Juan Diego Turcios | ESA | | Roman Moustopoulos | GRE | | Joachim Bottieau | BEL | | -- Matteo Marconcini | ITA | | -- Kodo Nakano | PHI | | Valeriu Duminică | MDA | | Srđan Mrvaljević | MNE |
| Pool B | | Ivaylo Ivanov | BUL | | Frank de Wit | NED | | Eoin Coughlan | AUS | | Lee Seung-soo | KOR | | Travis Stevens | USA | | Robin Pacek | SWE | | Shakhzodbek Sabirov | UZB | | Josateki Naulu | FIJ |
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| Pool C | | Takanori Nagase | JPN | | László Csoknyai | HUN | | Paul Kibikai | GAB | | Hussein Al-Aameri | IRQ | | Victor Penalber | BRA | | Marlon Acácio | MOZ | | Sven Maresch | GER | | Sergiu Toma | UAE |
| Pool D | | Antoine Valois-Fortier | CAN | | Loïc Pietri | FRA | | Nacif Elias | LIB | | Emmanuel Lucenti | ARG | | Khasan Khalmurzaev | RUS | | Saeid Mollaei | IRI | | Uuganbaataryn Otgonbaatar | MGL | | Mohamed Abdelaal | EGY |
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| | | 32 Quotas - Individual. Through IJF World Ranking List (as of May 30,2016). |
| Total - 34 Judocas. | | Host nation 1 | | --. Victor Penalber |  Brazil | | IJF World Ranking List (as of May 30, 2016) - 22 | | --. Avtandili Tchrikishvili |  Georgia | | --. Takanori Nagase |  Japan | | --. Antoine Valois-Fortier |  Canada | | --. Ivaylo Ivanov |  Bulgaria | | --. Travis Stevens |  United States | | --. Khasan Khalmurzaev |  Russia | | --. Joachim Bottieau |  Belgium | | --. Roman Moustopoulos |  Greece | | --. Sergiu Toma |  United Arab Emirates | | --. Mohamed Abdelaal |  Egypt | | --. Lee Seung-soo |  South Korea | | --. Uuganbaataryn Otgonbaatar |  Mongolia | | --. Iván Felipe Silva |  Cuba | | --. Loïc Pietri |  France | | --. Csoknyai László |  Hungary | | --. Shakhzodbek Sabirov |  Uzbekistan | | --. Sven Maresch |  Germany | | --. Eoin Coughlan |  Australia | | --. Nacif Elias |  Lebanon | | --. Robin Pacek |  Sweden | | --. Frank de Wit |  Netherlands | | --. Saeid Mollaei |  Iran | | Additional places (Europe) - 2 | | --. Matteo Marconcini |  Italy | | --. Valeriu Duminică |  Moldova | | Additional places (Africa) - 2 | | --. Marlon Acácio |  Mozambique | | --. Paul Kibikai |  Gabon | | Additional places (America) - 2 | | --. Emmanuel Lucenti |  Argentina | | --. Juan Diego Turcios |  El Salvador | | Additional places (Asia) - 1 | | --. Hussein Al-Aameri |  Iraq | | Additional places (Oceania) - 1 | | --. Josateki Naulu |  Fiji | | Invitational - 1 | | --. Srđan Mrvaljević |  Montenegro |
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