In the 2014/15 season, Łętocha in Nové Město na Moravě reached their first podium finish in the Slavic Cup with third place in the sprint. At the Winter Universiade 2015 in Štrbské Pleso she came in 27th place over 5 km classic and 16th place in sprint and at the U23 World Championships 2015 in Almaty on 35th place over 10 km freestyle, 32 3rd place in skiathlon and 27th place in sprint. In the 2015/16 season she won third place in the sprint at the Slavic Cup in Štrbské Pleso and second place over 5 km classic and at the U23 World Championships 2016 in Râșnov 33rd place over 10 km classic, 29th place over 10 km freestyle and 24th place in the sprint. After finishing 64th in the Lillehammer Tour at the beginning of the 2016/17 season, she came second and third three times in the Slavic Cup. In addition, she had three wins and thus won the overall ranking of the Slavic Cup. At the U23 World Championships in 2017 in Soldier Hollow , she finished 37th in the skiathlon, 34th place over 10 km freestyle and 31st place in the sprint. In the following season she reached third place in the overall ranking of the Slavic Cup with three third places. Her best placings at the Nordic World Ski Championships 2019 in Seefeld in Tirol were 47th place in the sprint and 13th place with the relay and seventh place in the sprint at the 2019 Winter Universiade in Krasnoyarsk .
She won the Polish championships in 2016 over 15 km freestyle and with the relay and in 2016 and 2018 with Sylwia Jaśkowiec in team sprints.