Aviron Bayonnais 7s vs Castres Olympique 7s

The match kicked off at 22:38 local time as the final fixture of the opening day in Biarritz, where Supersevens made its first visit to Stade Aguilera. Both sides entered the match knowing the arithmetic: Bayonne had beaten Montpellier Hérault Rugby 7s 24–7 in their earlier pool fixture, while Castres had lost 24–19 to RC Vannes 7s.

Bayonne struck first, crossing for a converted try to take a 7–0 lead. They doubled their advantage before half-time with a second converted score, establishing a 14–0 buffer that forced Castres to chase the game after the interval.

Castres responded after the break with a converted try of their own, narrowing the deficit to 14–7. But Bayonne's defence held firm through the second half, absorbing pressure and preventing Castres from finding an equalising score. The match finished 14–7, with no further points added in the closing stages.

Individual try scorers were not published in the official match data. The provider confirmed only the aggregate scoreline of 14–7, indicating two converted tries for Bayonne and one converted try for Castres.

Bayonne's second try before half-time was the decisive sequence. Leading 7–0, a second converted score stretched the margin to 14 points — a two-score gap in sevens that significantly shifts the risk calculus for the chasing team. Castres, having already lost their opening match, now needed three possessions to overhaul Bayonne rather than two. That structural disadvantage proved insurmountable despite Castres' improved second-half pressure and their sole converted try.

No official player-of-the-match award was announced for this fixture. Bayonne's collective defensive organisation in the second half — repelling Castres after the score reached 14–7 — was the standout element of the performance.

The Bayonne 7s squad included Spanish international Anton Legorburu, per the match programme published by SevensRugby.fr. His experience in the shortened format likely contributed to Bayonne's composure in managing the game clock after Castres narrowed the gap.

The 14–7 scoreline understates Bayonne's control of the match. Having established a two-try lead by half-time, Bayonne never trailed and never allowed Castres to level. The second half saw Castres on the front foot for extended periods — the pattern of a team chasing the game — but they could not manufacture the second try that would have drawn them level.

Context matters here: Castres entered this fixture off a 24–19 defeat to Vannes, meaning they had already used emotional and physical energy in a tight loss. Bayonne, by contrast, came in off a comfortable 24–7 win over Montpellier. The 17-point margin of that earlier victory suggested Bayonne's sevens unit had superior cohesion — and that carried into this match.

For Castres, the combined aggregate of 43 points conceded across two pool matches (24 vs Vannes, 14 vs Bayonne) tells a story of a defence that was competitive but not quite sharp enough in the format's punishingly short windows.

Bayonne finished top of Poule D with a perfect 2–0 record (point differential +24) and advanced to Saturday's quarter-finals at Stade Aguilera. Their wins over Montpellier (24–7) and Castres (14–7) confirmed the most clinical performance in the group.

Castres ended the day with two defeats (19–24 vs Vannes, 7–14 vs Bayonne) and were eliminated from the Biarritz stage. The Supersevens format allows teams to regroup: Stage 2 takes place in Pau on 28–29 August, where the 16-team field resets for another qualification round.

Vannes, who beat Castres 24–19 in their opener, played Montpellier later in the evening session to determine second place in Poule D and the other quarter-final berth from the group.

The Grand Final of the In Extenso Supersevens is scheduled for 6 February 2027 at Paris La Défense Arena. Only the top performers across the two qualifying stages (Biarritz and Pau) will feature there.

Bayonne managed the night-session conditions and the two-score lead with a discipline that separated them from the rest of Poule D. Castres had the heart to fight back but lacked the try-scoring punch to erase a 14-point deficit. For the neutral, the story of this match was Bayonne's second try before half-time — a moment that decided the pool and ended Castres' weekend.