Oyonnax may be seen by some as an unfashionable French Top 14 club, but try telling that to the five players of New Zealand rugby background who helped engineer a stunning 11-10 away win over the equally Kiwi-laden and much wealthier Clermont.
Lock Leon Power, No 8 Viliami Ma'afu, replacement hooker Paul Ngauamo, wing Alaska Taufa and prop Soane Tonga'uiha tasted a rare win for any team visiting Stade Michelin.
Tonga'uiha scored a second half try which proved critical for the visitors, who stay in the playoffs hunt.
The four Kiwis at Toulouse celebrated a 20-17 win over Bayonne. Luke McAlister, wearing the No 12 jersey, slotted three goals for Toulouse, while Joe Rokocoko, back on the wing, scored a try for Bayonne.
Sitiveni Sivivatu's Castres scored a vital 22-20 win over Bordeaux-Begles, for whom Peter Saili was at No 8.