Themen'slong jump event at the1986 World Junior Championships in Athletics was held inAthens, Greece, atOlympic Stadium on 17 and 18 July.[1][2]
| Gold | Dietmar Haaf West Germany |
| Silver | Ivo Krsek Czechoslovakia |
| Bronze | Thomas Wolf East Germany |
18 July
| Rank | Name | Nationality | Result | Notes |
|---|---|---|---|---|
 | Dietmar Haaf | West Germany | 7.93 | |
 | Ivo Krsek | Czechoslovakia | 7.87 | |
 | Thomas Wolf | East Germany | 7.77 | |
| 4 | David Culbert |  Australia | 7.71 | |
| 5 | Lahor Marinović |  Yugoslavia | 7.69 | |
| 6 | Kim Won-Jin |  South Korea | 7.64 | |
| 7 | Li Tong |  China | 7.59 | |
| 8 | Kostas Koukodimos |  Greece | 7.58 | |
| 9 | Oleg Kurbatov |  Soviet Union | 7.51 | |
| 10 | Dimítrios Hatzopoulos | Greece | 7.49 | |
| 11 | Lisandro Milhet |  Cuba | 7.46w | |
| 12 | Rod Tolbert |  United States | 7.42 |
17 Jul
| Rank | Name | Nationality | Result | Notes |
|---|---|---|---|---|
| 1 | Thomas Wolf | East Germany | 7.73 | Q |
| 2 | Lahor Marinović | Yugoslavia | 7.71 | Q |
| 3 | Kostas Koukodimos | Greece | 7.47 | q |
| 4 | Kim Won-Jin | South Korea | 7.43 | q |
| 5 | Scott Sanders | United States | 7.34 | |
| 6 | Edward Manderson |  Cayman Islands | 7.21 | |
| Oleg Konovalenko | Soviet Union | 7.21 | ||
| 8 | Jonathon Moyle |  New Zealand | 7.19 | |
| 9 | René Zeman |  Austria | 7.13 | |
| Bernhard Kelm | West Germany | 7.13 | ||
| 11 | Rami Lev-Ram |  Israel | 7.08 | |
| 12 | Pascal Pierrot |  France | 7.00 | |
| 13 | Milan Gombala | Czechoslovakia | 6.99 | |
| 14 | Roland Waibel |  Switzerland | 6.81 | |
| 15 | Glenroy Gilbert |  Canada | 6.78 | |
| 16 | Yousef Awad |  Egypt | 6.47 | |
| 17 | William Akanoa |  Cook Islands | 6.45 | |
| 18 | Allen Wheatley |  British Virgin Islands | 6.22 | |
| 19 | Francisco Colorado |  El Salvador | 5.91 | |
| 20 | Richard Dolmetsch |  Colombia | 5.87 | |
| Lotfi Khaïda |  Algeria | NM | ||
| Javier San Adrian |  Spain | NM | ||
| Andy St. Remy |  U.S. Virgin Islands | NM |
| Rank | Name | Nationality | Result | Notes |
|---|---|---|---|---|
| 1 | Dietmar Haaf | West Germany | 7.91 | Q |
| 2 | Ivo Krsek | Czechoslovakia | 7.75 | Q |
| 3 | David Culbert | Australia | 7.67 | Q |
| 4 | Dimítrios Hatzopoulos | Greece | 7.63 | Q |
| 5 | Oleg Kurbatov | Soviet Union | 7.62 | Q |
| 6 | Lisandro Milhet | Cuba | 7.60 | Q |
| 7 | Li Tong | China | 7.45 | q |
| 8 | Rod Tolbert | United States | 7.43 | q |
| 9 | Jesús Oliván | Spain | 7.41 | |
| 10 | Babou Saine |  Gambia | 7.33 | |
| 11 | Attila Szekeres |  Hungary | 7.30 | |
| 12 | Paulo de Oliveira |  Brazil | 7.25 | |
| 13 | Yoshimi Hirota |  Japan | 7.24 | |
| 14 | Stoyan Stanchev |  Bulgaria | 7.20 | |
| Pär-Ola Gustafsson |  Sweden | 7.20 | ||
| 16 | J. Augustine |  India | 7.06 | |
| 17 | Richard Duval |  Mauritius | 6.95 | |
| 18 | Hugh Hamilton | Canada | 6.89 | |
| 19 | Toyi Simklima |  Togo | 6.32 | |
| 20 | Mauricio Vel Domínguez | Colombia | 6.00 | |
| 21 | Ahmed Mohamed |  Comoros | 5.67 |
According to an unofficial count, 44 athletes from 36 countries participated in the event.
Algeria (1) Australia (1) Austria (1) Brazil (1) British Virgin Islands (1) Bulgaria (1) Canada (2) Cayman Islands (1) China (1) Colombia (2) Comoros (1) Cook Islands (1) Cuba (1) Czechoslovakia (2) East Germany (1) Egypt (1) El Salvador (1) France (1) Gambia (1) Greece (2) Hungary (1) India (1) Israel (1) Japan (1) Mauritius (1) New Zealand (1) South Korea (1) Soviet Union (2) Spain (2) Sweden (1) Switzerland (1) Togo (1) United States (2) U.S. Virgin Islands (1) West Germany (2) Yugoslavia (1)World U20 Champions in men'slong jump | |
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