| 27/6/2025 08:30 | PHASE C SILVER & BRONZE | RZO U13D | UNIVERSO SILVI | 11 - 1 | Finished |
| 27/6/2025 08:30 | PHASE B1 | MESTRINA NUOTO | ROMA VIS NOVA PALLANUOTO | 6 - 9 | Finished |
| 27/6/2025 08:30 | PHASE B1 | PSN SHARKS | REALE MUTUA TORINO '81 IREN | 11 - 6 | Finished |
| 27/6/2025 09:00 | PHASE C SILVER & BRONZE | SPORTCENTER PARMA | ROMA VIS NOVA | 11 - 2 | Finished |
| 27/6/2025 09:00 | PHASE B1 | R.NANTES IMPERIA | VASAS SPORT CLUB | 14 - 16 | Finished |
| 27/6/2025 09:00 | PHASE B1 | ILISIAKOS BLACK | ONDA BLU1 | 9 - 8 | Finished |
| 27/6/2025 09:00 | PHASE B1 | PAYS D'AIX NATATION (PAN) | ARGONAUTI BALNAEA | 10 - 6 | Finished |
| 27/6/2025 09:00 | PHASE B1 | SZENTES BOYS | EGER ANGELS | 6 - 5 | Finished |
| 27/6/2025 09:30 | PHASE C SILVER & BRONZE | A.S.D. PALLANUOTO | UWA BEARS | 5 - 7 | Finished |
| 27/6/2025 09:30 | PHASE B1 | CNABR | SAN JOSE EXPRESS | 4 - 12 | Finished |
| 27/6/2025 09:30 | PHASE B1 | GREENWICH AQUATICS | NUOTO CATANIA | 13 - 11 | Finished |
| 27/6/2025 09:30 | PHASE B1 | ONDA BLU2 | BALATON VK | 6 - 6 | Finished |
| 27/6/2025 09:30 | PHASE B1 | II. KERULETI SPORT | MVLC MISKOLC | 10 - 6 | Finished |
| 27/6/2025 10:00 | PHASE C ROCK & POP ROUND OF 16 | ASD ROSETANA NUOTO | LERICI SPORT | 3 - 7 | Finished |
| 27/6/2025 10:00 | PHASE C-BRONZE // ROUND OF 16 | AVENTINO SPORTING ROMA | LIBERTAS ROMA EUR PN | 9 - 4 | Finished |
| 27/6/2025 10:00 | PHASE C ROCK & POP ROUND OF 16 | PESCARA NUOTO E PALLANUOTO | BOLOGNA DE AKKER+ | 12 - 6 | Finished |
| 27/6/2025 10:00 | PHASE C-BRONZE // ROUND OF 16 | ASI-DSE BUDAPEST U13 | FEHERVAR VSE A | 3 - 8 | Finished |
| 27/6/2025 10:00 | PHASE C-BRONZE // ROUND OF 16 | MONZA RED CRABS | GRAND GLOBE | 8 - 11 | Finished |
| 27/6/2025 10:30 | PHASE C-BRONZE // ROUND OF 16 | DFVE BOYS | RARI NANTES SAVONA | 7 - 13 | Finished |
| 27/6/2025 10:30 | PHASE C-BRONZE // ROUND OF 16 | SZEGEDI VIZIPOLO SULI U13 | ENTENTE 95 GARCONS 2 | 10 - 6 | Finished |
| 27/6/2025 10:30 | PHASE C-BRONZE // ROUND OF 16 | ZERO9 TEAM U13 | UNISPORT U13 | 6 - 2 | Finished |
| 27/6/2025 10:30 | PHASE C-BRONZE // ROUND OF 16 | ILISIAKOS YELLOW | BOLOGNA DE AKKER1 | 7 - 5 | Finished |
| 27/6/2025 10:30 | PHASE C-BRONZE // ROUND OF 16 | ASCA | MURI ANTICHI | 3 - 13 | Finished |
| 27/6/2025 14:00 | PHASE C-SILVER // ROUND OF 16 | CLUB AQUATICO ORANGE | TRAINING ACADEMY O.R. | 13 - 1 | Finished |
| 27/6/2025 14:00 | PHASE C-SILVER // ROUND OF 16 | ONDA BLU1 | CNABR | 18 - 10 | Finished |
| 27/6/2025 14:00 | PHASE C-SILVER // ROUND OF 16 | 28 DEGREES AQUATIC (U13) | MESTRINA NUOTO | 11 - 8 | Finished |
| 27/6/2025 14:00 | PHASE C-SILVER // ROUND OF 16 | SOTE | POL. DELTA | 5 - 10 | Finished |
| 27/6/2025 14:30 | PHASE C-SILVER // ROUND OF 16 | R.NANTES IMPERIA | MVLC MISKOLC | 7 - 9 | Finished |
| 27/6/2025 14:30 | PHASE C-SILVER // ROUND OF 16 | AQUA VAC | REALE MUTUA TORINO '81 IREN | 6 - 10 | Finished |
| 27/6/2025 14:30 | PHASE C-SILVER // ROUND OF 16 | EGER ANGELS | ONDA BLU2 | 10 - 3 | Finished |