Career
Early years
Kasperkiewicz took up cycling at a very early age and competed in track and road cycling with a local club – KTK Kalisz. He showed a lot of promise as a junior rider, winning medals and national titles on the track and taking 2nd in the international junior race, the Tour de la Région de Lódz. Coming to the Under-23 category Kasperkiewicz moved to the Netherlands and joined the West Virginia De Jonge Renner cycling club
He raced both in Polish and Dutch races, putting his prowess on display with 6th place in the Carpathian Couriers Race and 2nd in the National Under-23 Time Trial Championships.
Professional career
= 2014 Kasperkiewicz turned professional at the age of 19, signing a one-year deal with Czechoslovakian-based continental outfit Bauknecht–Author. He finished 3rd overall in the Carpathian Couriers Race and shortly afterwards took his first professional victory after a successful breakaway in stage 1 of the Peace Race U23.
In June Kasperkiewicz took part in the National Championships, taking silver in the under-23 men"s time trial for the second consecutive time. He did not start the under-23 road race – despite being only 20, he decided to participate in the elite race, eventually finishing 4th.
Following those performances, he was selected for the Polish national team for the Tour de Pologne and the Tour de l"Avenir.
In November he signed a contract with AWT–GreenWay, development team for UCI WorldTour squad Etixx–Quick-Step.