| Sponsor Cupen | Kristianstad | Kristianstads SLS | 2018-04-07 | 25 M |  |
| Poäncupen 4 | Lomma | SK Hajen | 2018-04-10 | 25 M | |
| Tensta Cup 2 2018 | Tensta | Spårvägen Simförening | 2018-04-12 | 25 M | |
| 2018 TYR Pro Swim Series | Mesa, AZ, USA | | 2018-04-12 | 50 M | |
| Danish Open 2018 | Brønshøj | Dansk Svømmeunion & Hovedstaden SK | 2018-04-12 | 50 M | |
| Bergen Swim Festival 2018 | Bergen | Hordaland Svømmekrets | 2018-04-13 | 50 M | |
| Yellow Race 2 | Burlöv | SK Sydsim | 2018-04-13 | 50 M | |
| Utmanaren | Oskarshamn | Oskarshamns Simsällskap | 2018-04-13 | 25 M | |
| KM2 | Västervik | VSS | 2018-04-13 | 25 M | |
| KM Kalmar 20180413 | Kalmar | Kalmar Simsällskap | 2018-04-13 | 25 M | |
| Kvarken Games | Vaasa | Vaasan Uimaseura-Vasa Simsällskap | 2018-04-14 | 50 M | |
| Klubbtävling Myresjö 180419 | Myresjö | Hvetlanda simsällskap | 2018-04-19 | 25 M | |
| Im50 | Reykjavik | | 2018-04-20 | 50 M | |
| Sportringen Swim Meet | Burlöv | SK Sydsim | 2018-04-21 | 50 M | |
| Ethias Swimming Trophy | Charlerois, BEL | | 2018-04-21 | 50 M | |
| KM2 VT 2018 | Brunflo | SK Ägir | 2018-04-21 | 25 M | |
| Seriesim 3b omg 4 | Lomma | SK Hajen | 2018-04-21 | 25 M | |
| Medley Cup | Åkersberga | Åkersberga simsällskap | 2018-04-21 | 25 M | |
| 34:e Mora Cup | Mora | Simsällskapet Mora | 2018-04-21 | 25 M | |
| Utmanaren 2 / Distans-KM | Örebro | Örebro Simallians | 2018-04-21 | 25 M | |
