Russian Grandmaster (2007). Kokarev was World U18 Champion in 1999, European U14 Champion in 1996, Russian Student Champion in 2004 and in 2007.
Best results: Russian U18 1998, 3rd; Sarkisov Memorial 2003, 1st; Russian Student championship 2005, 2nd; Saratov GM 2006, 1st-3rd; R. Nezhmetdinov Memorial (RUS) 2009, 1st; Karaganda city (KAZ), 1st; Izmailov Memorial (RUS) 2009, 1st; Voronezh Open 2009, 1-8th; Mumbai Open 2010, 1st; Memorial Izmailov Petr Memorial (RUS) 2011, 1-4th; Voronezh International Chess Festival 2011, 1st; Centre Cup Izhevsk 2011, 1st; Vladimir Open 2011, 1st; Dvorkovich Memorial 2013, 1st; Chigorin Memorial 2013, 1st-11st; Ugra Governor’s Cup 2014 and 2017, 1st.