Vannes scored two tries by Joe Edwards (30th) and Francisco Gorrissen, and Béziers three by Gabin Lorre (67th, 85th) after a first penalty (56th).
Valence-Romans climbs onto the podium (3rd) after its big victory at home at the expense of Brive (45-10), with 5 tries, compared to just one for the Corréziens.
The offensive bonus point allows the Drôme team to move ahead of Agen (4th), who had dominated Nevers 40-30 on Tuesday evening at the opening of the 5th day.
At the bottom of the ranking, the last three before the day all won, Dax against Colomiers (25-6), Aurillac against Grenoble (27-23) and Mont-de-Marsan which went to beat Biarritz 37-17 in evening.
The Basque team finds itself last in the standings, tied on points with Rouen (15th and penultimate), beaten 23-16 in Montauban (5th).
Tuesday September 12
Agen – Nevers 40 – 30
Wednesday September 13
Aurillac – Grenoble (bd) 27 – 23
Béziers – Vannes 20 – 20
Provence Rugby – Soyaux-Angoulême (bd) 21 – 18
Dax (bo) – Colomiers 25 – 6
Montauban – Rouen 23 – 16
Valence-Romans (bo) – Brive 45 – 10
Biarritz – Mont-de-Marsan 17 – 37
Ranking: Pts J G N P pp pc dif Good
1. Valves 19 5 4 1 0 132 62 70 1
2. Provence Rugby 18 5 4 0 1 152 94 58 2
3. Valence-Romans 14 5 3 0 2 134 87 47 2
4. Agent 14 5 3 1 1 125 144 -19 0
5. Montauban 13 5 3 0 2 86 110 -24 1
6. Nevers 11 5 2 0 3 141 121 20 3
7. Dax 11 5 2 1 2 87 124 -37 1
8. Brive 10 5 2 0 3 119 122 -3 2
9. Mont-de-Marsan 10 5 2 0 3 130 113 17 2
10. Grenoble 10 5 2 0 3 135 129 6 2
11. Aurillac 10 5 2 0 3 106 108 -2 2
12. Béziers 10 5 2 1 2 91 133 -42 0
13. Soyaux-Angoulême 9 5 1 1 3 102 96 6 3
14. Colomiers 9 5 2 0 3 100 127 -27 1
15. Rouen 8 5 1 1 3 104 103 1 2
16. Biarritz 8 5 2 0 3 97 168 -71 0