[1] In February 2016, he set a new Turkish junior record running 7.98 seconds for the 60m hurdles in Istanbul.
[2] He set a new senior Turkish national record time of 7.85 seconds over 60m hurdles at the Balkan indoor championships in Istanbul in February 2019.
[3] In June 2019, Sevler lowered the Turkish 110 metres hurdles national record to 13.91 at the International Romanian Athletics Championships in Cluj.
[6] He competed at the 2021 European Athletics Indoor Championships in Toruń, where he reached the semi-finals in a time of 7.78 seconds.
[9] He lowered his own national record whilst competing at the 2022 World Athletics Indoor Championships in Belgrade, running 7.70 seconds for the 60m hurdles where he reached the semi finals.