 Complete the following phrase:  201415 season was the most successful as of January 2018. That season she had 4 individual podiums and finished third in World Cup classification, being the second ever Ukrainian biathlete to finish a season in Top-3 after Olena Zubrilova. After Christmas Valja together with Serhiy Semenov she won World Team Challenge. The most memorable achievement was victory in mass start at 