The 2021 Individual Speedway Under 21 World Championship was the 45th edition of the FIM Individual Under-21 World Championship. It was staged over three rounds, at Stralsund, Krosno and Pardubice.

Pole Jakub Miśkowiak won the title after winning two of the three rounds. It was the last time that the event was known as the Under 21, with a rebranding to SGP2 taking place in 2022.

Final series No.DateVenueWinnerRunner-up3rd place 14 September Paul Greifzu Stadium, Stralsund Mads Hansen Wiktor Lampart Jakub Miśkowiak 225 September Stadion MOSiR Krosno, Krosno Jakub Miśkowiak Mateusz Cierniak Mads Hansen 31 October Svítkov Stadium, Pardubice Jakub Miśkowiak Mads Hansen Jan Kvěch

Final standings +PosRider123Total Jakub Miśkowiak 18 20 20 58 Mads Hansen 20 16 18 54 Wiktor Lampart 16 14 10404 Mateusz Świdnicki 9 10 12 315 Petr Chlupáč 7 11 11 296 Francis Gusts 12 97 28 Jan Kvěch 0 12 16 28 Norick Blödorn 14 x 14 289 Alexander Woentin 11 8 6 2510 Daniils Kolodinskis 8 5 5 18 Mateusz Cierniak x 18 x 1812 Lukas Baumann 62 9 1713 Mark Karion 10 6 x 1614 Marko Levyshyn 38 1 1215 Matthew Gilmore 42 4 1016 Daniel Klímaxx8817 Ernest Matjuszonok 5 0 x 5 Steven Goret 2 1 2 519 Michał Curzytek x 4 x 420 Drew Kemp x x 3 321 Marius Hillebrand 1x x 122 Fynn Ole Schmietendorf 0 x x 0 Dawid Rempała x 0x 0

See also 2021 Speedway Grand Prix 2021 Team Speedway Junior World Championship

References