2004–05 European Challenge Cup Round 1 Aggregate Results

| Winners | Match_points | Aggregate_score | Points_margin | Losers |
|---|---|---|---|---|
| Grenoble | 3 – 1 | 27 – 26 | 1 | Leeds Tykes |
| Brive | 2 – 2 | 55 – 39 | 16 | Worcester Warriors |
| Connacht | 2 – 2 | 51 – 46 | 5 | Narbonne |