Rebecca Day was a pioneer in many ways for the volleyball program at Shawnee State. As a three-time team captain, Day led the Bears to unprecedented success. She capped her career in style as she led the Bears to a 38-3 record during the 2008 season. That record still stands as the highest win total and winning percentage in program history. The Bears went 12-2 in AMC play during that regular season and won the conference tournament in the postseason to advance to the NAIA Tournament for the first time in program history.
Individually, Day was honored as the first player in program history to earn honorable mention All-American status during that 2008 season. She was also the first player in program history to be named first-team AVCA All-Region IX. At the conference level, Day was selected to the All-AMC team in each of her four seasons. She was named first-team All-AMC as a senior after garnering second-team All-AMC honors as a junior and honorable mention All-AMC as a freshman and sophomore. She was also named to the AMC All-Freshman team in her first season. During her senior season alone, Day broke five single season records and still holds the program record with a .388 hitting percentage as a senior. She graduated as the program's career leader in six different statistical categories. She still ranks second in program history in kills (1,483), service aces (188) and block assists (138). Day also ranks third in career blocks (311) and solo blocks (173) while she is fourth in hitting percentage (.335) and fifth in digs (1,284).