Dobrynska competed at the 2010 Hypo-Meeting in May, but she was in sub-par form and managed only a score of 6023 for seventh place (over 600 points behind Jessica Ennis' winning mark).[4][5] In spite of this she proved herself as a contender to the gold medal at the 2010 European Athletics Championships in July. After the first day, Dobrynska ran a 200 m best of 24.23 seconds and was in second place – 110 points behind Ennis, who led the competition.[6] The following day she scored a best in the javelin (49.25 m) and was 18 points behind Ennis with one event remaining. She finished the competition with an 800 m run of 2:12.06, another personal best. Her total score of 6778 points was her best ever performance and beyond Carolina Klüft's championship record. However, Ennis took the gold, also setting a personal best, leaving Dobrynska with the silver medal – her first podium finish at the European Athletics Championships.[7][8]
She returned to competition at the 2010 Décastar meeting in September and was the runner-up behind Tatyana Chernova, having a total of 6309 points for the event.[9] The following year she finished in fifth place at the 2011 World Championships in Athletics, getting a total of 6539 points and setting personal bests in the hurdles (13.43 seconds) and 800 metres (2:11.34 minutes).[1]
At the beginning of the 2012 season she won the Ukrainian indoor title with a national record score of 4880 points.[10] She produced an even better performance at the 2012 IAAF World Indoor Championships. Although defending champion Ennis was the pre-event favourite, Dobrynska had a consistent tally, including personal bests in the long jump (6.57 m) and 800 m (2:11.15 min) to become the first woman ever to score over 5000 points for the indoor pentathlon. Her world record mark of 5013 points bettered Irina Belova's twenty-year-old score from 1992.[11] Later that month, Dobrynska's coach and husband, Dmitry Polyakov, died of cancer.[12][13] Dobrynska stood for election to the Ukrainian Parliament in the October 2012 Ukrainian parliamentary election as a candidate for the Party of Regions in Ukraine's 11th electoral district (first-past-the-post wins a parliament seat) located in her native Vinnytsia Oblast.[14] However, she failed to win the seat, finishing in fifth place with 6.45% of the votes.[15]
