Compatriot Maxime Nocher is second on 14.0 points after recording two third place finishes, two second place finishes and a fourth place finish.
His 12th place finish was discarded as his worst result of the day.
Toni Vodisek of Slovenia broke up the French dominance by placing third on 17.0 points, having finished fourth three times and third and second in his remaining races.
The men's gold flight races are set to continue tomorrow.
Competition is set to continue tomorrow before the medal races on Sunday ©Eureka/Dominik Kalamus
Four races were completed in the women's contest, with Polish teenagers Julia Damasiewicz and Magdalena Woyciechowska staying at the top of the leaderboard.
Damasiewicz triumphed twice before finishing second, with a fifth place finish discarded as one of her worst results, giving her 13 points.
Woyciechowska trails her on 24.8, having recorded one third place and two second place finishes.
In third place is Britain's Ellie Aldridge, who enjoyed a successful run of results to achieve a total of 28.5 points.
She won today's opening race, before finishing third, third again and second.
Competition is due to continue in the Polish resort tomorrow, with the medal races for the top 14 men's and women's athletes scheduled for Sunday (August 23).
Top 5 Men after 4 final series races (1 discard)
1. Axel Mazella (FRA) - 6 pts
2. Maxime Nocher (FRA) - 11 pts
3. Toni Vodisek (SLO) - 17 pts
4. Theo De Ramecourt (FRA) - 18 pts
5. Nico Parlier (FRA) - 20 pts
Top 5 Women after 12 races (3 discards)
1. Julia Damasiewicz (POL) - 13 pts
2. Magdalena Woyciechowska (POL) - 24.8 pts
3. Ellie Aldridge (GBR) - 28.5 pts
4. Leonie Meyer (GER) - 31 pts
5. Lauriane Nolot (FRA) - 37 pts
Full results (updated live during racing) can be found at www.formulakite.org
Words: Nancy Gillen / insidethegames.biz