Muna 2015 Visser akava mutambi mukuru weDutch kwenguva yekutanga, achikunda 60 m zvipingamupinyi mu8.12 paNational Indoor Championships muApeldoorn; akasarudzwa kuEuropean Indoor Championships muPrague, pasinei nekusangana zvakakwana nehurumende yenyika. MuPrague akakwanisa kupinda mumakwikwi aya nenguva, asi akakundwa mumasemi-fainari uye akabviswa. Kunze, Visser akavandudza nyika yake pasi pemakore makumi maviri nematatu zvipingamupinyi kusvika pa12.97 (+ 1.4) paFBK Mitambo muHengelo muna Chivabvu 24; svondo rakatevera, akaisa 5th muHypo-Musangano aine wega akanakisa 6467 mapoinzi. Pamberi pe2015 European U23 Championships
muTallinn Visser akanga asvika pamwero wekodzero mumitambo mishanu (100 m, 200 m, 100 m zvipingamupinyi, kusvetuka kure uye heptathlon); akasarudza kukwikwidza muzvipingamupinyi uye kusvetuka kure, achikunda bronze muzvipingamupinyi nenguva ye 13.01 (-0.2).