Su 26 May | | | | VN |
Fête du Printemps REN à Verviers LNL 2013 (25m, 6l) | | |
| | | CNSW |
Swim Meet à Woluwe Saint Pierre BCBW 2013 (50m, 8l) | | National |
| | | HZS |
100 Jaar Kon. Hasselse Zwemver. Spartacus te Hasselt Limburg 2013 (25m, 6l) | | Federal |
| | | ZTZ |
200m van Tielt West-Vlaanderen 2013 (25m, 6l) | | National |
Sa 25 May | | | | HZS |
100 Jaar Kon. Hasselse Zwemver. Spartacus te Hasselt Limburg 2013 (25m, 6l) | | Federal |
| | | ZTZ |
200m van Tielt West-Vlaanderen 2013 (25m, 6l) | | National |
| | | BDB |
2ème Meeting de la Ville de Saint Ghislain au Hainaut 2013 (25m, 6l) | | Federal |
| | | ENW |
Fête de Mai à Crisnée LNL 2013 (25m, 8l) | | Federal |
Mo 20 May | | | | KBZB/FRBN/BRABO |
Belgische Open kampioenschappen te Antwerpen 2013 (50m, 8l) | | National |
Su 19 May | | | | KBZB/FRBN/BRABO |
Belgische Open kampioenschappen te Antwerpen 2013 (50m, 8l) | | National |
Sa 18 May | | | | KBZB/FRBN/BRABO |
Belgische Open kampioenschappen te Antwerpen 2013 (50m, 8l) | | National |
Su 12 May | | | | VZF/BRABO |
Antwerp Diamond Speedo Race at Antwerp 2013 (50m, 8l) | | International |
| | | EMBOU |
Euromeeting d'Embourg LNL 2013 (25m, 6l) | | National |
Sa 11 May | | | | VZF/BRABO |
Antwerp Diamond Speedo Race at Antwerp 2013 (50m, 8l) | | International |
| | | EMBOU |
Euromeeting d'Embourg LNL 2013 (25m, 6l) | | National |
Th 09 May | | | | CHAN |
Euro Carolo Swimming Sprint à Gilly Hainaut 2013 (25m, 6l) | | Federal |
| | | CNSW |
Grands Prix R. Glibert et L. Lewillie à Woluwe-Saint-Lambert BCBW 2013 (25m, 8l) | | International |
| | | CHTHN |
Spring Meet à Chaudfontaine LNL 2031 (25m, 6l) | | District |
Su 05 May | | | | CNHUY |
Fête du Printemps à Huy LNL 2013 (25m, 6l) | | International |
| | | ONS |
Grand Prix à Soignies Hainaut 2013 (25m, 6l) | | Federal |
Sa 04 May | | | | GOLD |
GOLD Lentecriterium te Zwevegem West-Vlaanderen 2031 (50m, 8l) | | National |
| | | ONS |
Grand Prix à Soignies Hainaut 2013 (25m, 6l) | | Federal |
We 01 May | | | | ESN |
Finales Dauven à Seraign LNL 2013 (50m, 8l) | | National |