Kammala wannan jumla: A farkon aikinsa, Markuntsov ya yi gasa a duniya don Rasha a matakin matasa tare da Valentina Razskazova. Ya sami nasara sosai tare da Yuko Kawaguchi, yana gasa don Japan. Sun haɗu a cikin 1999 kuma sun kasance ma'aurata na farko da ke wakiltar Japan don lashe lambar yabo a Gasar ISU, wanda suka yi lokacin da suka lashe lambar azurfa a gasar ISU a shekarar 1999.
Gasar Zakarun Duniya ta 2001. Su ne 'yan wasan kasar Japan na 2002 da 2003. Matsayinsu mafi girma a Babban Gasar ISU shine na bakwai a 2003 Four Continents. Tamara Moskvina ce ta horar da su. Sun ƙare haɗin gwiwarsu bayan kakar 2002-2003.