ɪn tˈuː θˈaʊzənd twˈɛnti wˈʌn, mˈæɹɪtsə ɐɡˈɛn ɐtʃˈiːvd pɹəmˈoʊʃən tə ðə sˈɛkənd lˈiːɡ, wˈɪnɪŋ ðə tˈuː θˈaʊzənd twˈɛnti twˈɛnti wˈʌn sˈaʊθiːst θˈɜːd lˈiːɡ.
In 2021, Maritsa again achieved promotion to the Second League, winning the 2020–21 Southeast Third League.