AT SAN JOSÉ STATE: Four seasons with the Spartans... named to the Mountain West 25th Season Team at singles... Primarily plays #1-singles and #1-doubles... Tenth player in school history to reach 100 career wins in singles and doubles... Five career singles wins over nationally-ranked players... Named All-Mountain West in singles as a freshman, sophomore and junior... All-Mountain West in doubles as a sophomore, junior and senior... 2017 & 2018 Mountain West Scholar-Athlete... Four-time Academic All-Mountain West... 2017 ITA Scholar-Athlete.
2017-18: Named to All-Mountain West in doubles for the fourth consecutive year...Finished the season with a 32-20 overall record...Best singles win was over #79-Anna Roger of NCSU, 6-3, 6-0 at the 2017 Riviera/ITA All-American Championship...she finished her college career with 132 combined singles and doubles wins as a Spartan tying her with Sebastiani Leon Chao for third place on San Jose State's career list for wins.
2016-17: Finished the season ranked #89 in the ITA singles rankings... Teamed with Marie Klocker for #64 ITA doubles ranking at the end of the season... All-Mountain West in singles and doubles... 38-18 overall singles and doubles win-loss record... 21-10 in singles and 17-8 in doubles... Best singles wins were over #48-Carol Yang of UNLV, 6-3, 6-2 at the 2017 Mountain West Championship final, #62-Denise Starr of California, 7-5, 6-0, in the round of 64 at the 2016 ITA Northwest Regional Championships at Stanford, and #102-Tina Bokhua of Texas A&M, 6-4, 6-3 at the 2016 Riviera/ITA Women's All-American Championships... First San Jose State player to reach the campionship singles semifinal round of the ITA Northwest Regional Championships winning five singles matches... Had an eight-match winning streak with Klocker during the dual meet season playing in the #1-doubles position.
2015-16: Named to All-Mountain West in singles and doubles...Finished the season with a 39-24 overall record...Named an Academic All-Mountain West selection for the second consecutive year...Won both the singles and doubles bracket at the Saint Mary’s Fall Invitational...Played as the No. 1 singles player except for two matches...Finished the season ranked #89 in doubles with Marie Klocker as her partner...Was ranked as high as #51 in the nation as a doubles pair during the season...Defeated the #24 doubles pair in the country, Mayar Sherif Ahmed and Rana Sherif Ahmed of Fresno State on April 15, 2016.
2014-15: Became eligible for the spring and immediately stepped in as the Spartans’ top singles player…An All-Mountain West singles selection after going 3-1 in conference action at the No. 1 spot…Finished 11-8 overall atop the lineup on the spring…Notched two separate four-match singles winning streaks…Went 12-7 in doubles action…Started the season 2-3 at the No. 1 doubles position before settling in and going 9-4 at No. 2 and 1-0 at No. 3 the rest of the way…Teamed with freshman Malin Cubukcu for the first time at No. 19 Arizona State (3/20) and went on to post a 6-2 doubles mark over the last eight matches of the season…Named an Academic All-Mountain West selection.
HIGH SCHOOL: Attended Lycée Albert Camus in Frejus, France.
MORE ON SYBILLE: A business administration major…Parents are Herve and Florence Gauvain…Her twin sister, Lorraine, was her high school doubles partner…Also has an older sister, Delphine…Enjoys listening to music, watching TV and shopping in her free time…Native of Paris, France.
| Season | Singles | Doubles | Total |
| 2014-15 | 11-8 | 12-7 | 23-15 |
| 2015-16 | 20-16 | 19-8 | 39-24 |
| 2016-17 | 21-10 | 17-8 | 38-18 |
| 2017-18 | 18-9 | 14-11 | 32-20 |
| Career | 70-43 | 62-34 | 132-77 |