Water Polo, Men
| Competition | 2021 World Junior Water Polo Championships |
|---|---|
| Venue |
Praha
 CZE
|
| Held | 28 August ā 5 September 2021 |
| Status | Medal |
| Competitors | 43 |
| Countries | 18 |
Preliminary Round
Group A
Standings
| Pos | Team | Wins | Ties | Losses | Points | |
|---|---|---|---|---|---|---|
| 1 | Croatia |  CRO |
4 | 0 | 0 | 12 |
| 2 | Italy |  ITA |
2 | 1 | 1 | 7 |
| 3 | Russia |  RUS |
2 | 1 | 1 | 7 |
| 4 | Argentina |  ARG |
1 | 0 | 3 | 3 |
| 5 | Uzbekistan |  UZB |
0 | 0 | 4 | 0 |
Matches
| Croatia | CRO |
20-7 | Argentina | ARG |
| Russia | RUS |
38-1 | Uzbekistan | UZB |
| Italy | ITA |
12-13 | Croatia | CRO |
| Argentina | ARG |
30-7 | Uzbekistan | UZB |
| Italy | ITA |
40-1 | Uzbekistan | UZB |
| Russia | RUS |
12-5 | Argentina | ARG |
| Italy | ITA |
9-9 | Russia | RUS |
| Croatia | CRO |
31-1 | Uzbekistan | UZB |
| Italy | ITA |
15-8 | Argentina | ARG |
| Croatia | CRO |
13-5 | Russia | RUS |
Group B
Standings
| Pos | Team | Wins | Ties | Losses | Points | |
|---|---|---|---|---|---|---|
| 1 | Spain |  ESP |
3 | 1 | 0 | 10 |
| 2 | Serbia |  SRB |
3 | 1 | 0 | 10 |
| 3 | United States |  USA |
2 | 0 | 2 | 6 |
| 4 | Slovakia |  SVK |
1 | 0 | 3 | 3 |
| 5 | Czech Republic | CZE |
0 | 0 | 4 | 0 |
Matches
| Serbia | SRB |
6-6 | Spain | ESP |
| United States | USA |
12-7 | Slovakia | SVK |
| Serbia | SRB |
28-0 | Czech Republic | CZE |
| Spain | ESP |
15-5 | Slovakia | SVK |
| Serbia | SRB |
15-0 | Slovakia | SVK |
| United States | USA |
18-2 | Czech Republic | CZE |
| Spain | ESP |
20-10 | United States | USA |
| Slovakia | SVK |
10-5 | Czech Republic | CZE |
| Serbia | SRB |
14-9 | United States | USA |
| Spain | ESP |
18-4 | Czech Republic | CZE |
Group C
Standings
| Pos | Team | Wins | Ties | Losses | Points | |
|---|---|---|---|---|---|---|
| 1 | Hungary |  HUN |
3 | 0 | 0 | 9 |
| 2 | Germany |  GER |
2 | 0 | 1 | 6 |
| 3 | Brazil |  BRA |
1 | 0 | 2 | 3 |
| 4 | Egypt |  EGY |
0 | 0 | 3 | 0 |
Matches
| Hungary | HUN |
22-10 | Brazil | BRA |
| Germany | GER |
14-4 | Egypt | EGY |
| Germany | GER |
14-5 | Brazil | BRA |
| Hungary | HUN |
12-5 | Germany | GER |
| Brazil | BRA |
9-8 | Egypt | EGY |
| Hungary | HUN |
22-3 | Egypt | EGY |
Group D
Standings
| Pos | Team | Wins | Ties | Losses | Points | |
|---|---|---|---|---|---|---|
| 1 | Montenegro |  MNE |
3 | 0 | 0 | 9 |
| 2 | Greece |  GRE |
2 | 0 | 1 | 6 |
| 3 | South Africa |  RSA |
1 | 0 | 2 | 3 |
| 4 | Kazakhstan |  KAZ |
0 | 0 | 3 | 0 |
Matches
| Montenegro | MNE |
16-5 | South Africa | RSA |
| Greece | GRE |
26-2 | Kazakhstan | KAZ |
| Greece | GRE |
21-5 | South Africa | RSA |
| Montenegro | MNE |
9-8 | Greece | GRE |
| South Africa | RSA |
10-8 | Kazakhstan | KAZ |
| Montenegro | MNE |
13-2 | Kazakhstan | KAZ |
Play-Offs
| Serbia | SRB |
15-5 | Brazil | BRA |
| Italy | ITA |
18-3 | South Africa | RSA |
| United States | USA |
10-8 | Germany | GER |
| Greece | GRE |
11-7 | Russia | RUS |
Quarter-Finals
| Serbia | SRB |
12-10 | Croatia | CRO |
| Italy | ITA |
11-9 | Spain | ESP |
| Montenegro | MNE |
17-5 | United States | USA |
| Hungary | HUN |
11-9 | Greece | GRE |
| Kazakhstan | KAZ |
19-8 | Uzbekistan | UZB |
| Egypt | EGY |
9-5 | Czech Republic | CZE |
Semi-Finals
| Serbia | SRB |
10-7 | Hungary | HUN |
| Italy | ITA |
14-12 | Montenegro | MNE |
| Croatia | CRO |
20-12 | Greece | GRE |
| Spain | ESP |
18-7 | United States | USA |
| Germany | GER |
8-7 | Russia | RUS |
| Brazil | BRA |
16-5 | South Africa | RSA |
| Argentina | ARG |
9-3 | Slovakia | SVK |
| Kazakhstan | KAZ |
7-5 | Egypt | EGY |
Finals
| Serbia | SRB |
10-8 | Italy | ITA |
| Montenegro | MNE |
12-11 | Hungary | HUN |
| Croatia | CRO |
12-8 | Spain | ESP |
| United States | USA |
12-11 | Greece | GRE |
| Germany | GER |
16-6 | Brazil | BRA |
| Russia | RUS |
18-7 | South Africa | RSA |
| Argentina | ARG |
11-10 | Kazakhstan | KAZ |
| Slovakia | SVK |
10-9 | Egypt | EGY |
| Czech Republic | CZE |
19-10 | Uzbekistan | UZB |