Dr. Stephanie Kovalchik is a data scientist at Zelus Analytics, a sports intelligence firm, and holds a joint appointment at Tennis Australia. Stephanie’s area of expertise is statistics. She received her PhD from UCLA, where she focused on multi-level modeling, prediction, and risk assessment. Stephanie has held appointments as a statistical researcher at the National Cancer Institute and the RAND Corporation, where she developed new statistical methods for handling complex health science data.

While working in the health sciences, Stephanie was also conducting quantitative research in tennis.  She is the creator of the tennis analytics blog On The T and regularly writes on tennis on twitter @StatsOnTheT.