diff --git a/_data/ball/2025.yaml b/_data/ball/2025.yaml
index f0c32602..717e9bb5 100644
--- a/_data/ball/2025.yaml
+++ b/_data/ball/2025.yaml
@@ -2,6 +2,7 @@ name: CSS BALL
 year: 2025
 location: Macdonald Burlington Hotel
 date: 4th April
+attendees: 170
 
 tickets:
   - type: 3 Course
diff --git a/_data/ball/2026.yaml b/_data/ball/2026.yaml
index 95717cbe..ad5099b2 100644
--- a/_data/ball/2026.yaml
+++ b/_data/ball/2026.yaml
@@ -2,6 +2,7 @@ name: CSS BALL
 year: 2026
 location: Macdonald Burlington Hotel
 date: 27th March
+attendees: 137
 
 tickets:
   - type: 3 Course