- 3.1 Individual
- 3.2 double
Coin was as a teenager in all age groups in each of the ten best players of their country. In 1999, she played in France its first ITF tournament. In 2001 she won the first tournament in Amiens in doubles.
For her studies, she went to the United States, where he was in college tennis successful member of the tennis team at Clemson University. Other successes were not long in coming. In June 2005, she reached the semifinals of the 10,000- US- dollar tournament in Alkmaar and four weeks later, they took the tournament by Les Contamines as a qualifier her first individual victory and the winner's check in the amount of U.S. $ 25,000. At the end of the year she was standing in the world rankings at No. 367
In 2006, she played her first full season as a professional. Although she remained during the entire season without a title, but in a double was the first time in the main draw of the French Open. The following year, she was among the top 200 in the world rankings.
In August 2008 she reached the U.S. Open on the qualifications for the first time in an individual the main draw of a Grand Slam tournament and turned there in the second round, the world number one Ana Ivanovic out in the third round, she defeated then her compatriot Amélie Mauresmo.