2004–05 European Challenge Cup Round 1 Aggregate Results

| Winners | Match_points | Aggregate_score | Points_margin | Losers |
|---|---|---|---|---|
| Borders | 4 – 0 | 205 – 6 | 199 | AA Coimbra |
| Viadana | 4 – 0 | 147 – 10 | 137 | Valladolid RAC |
| Clermont Auvergne | 4 – 0 | 116 – 6 | 110 | Leonessa |
| Montpellier | 4 – 0 | 110 – 10 | 100 | Rovigo |
| Béziers | 4 – 0 | 126 – 42 | 84 | Petrarca Padova |
| Agen | 4 – 0 | 109 – 48 | 61 | L`Aquila |
| Sale Sharks | 4 – 0 | 81 – 25 | 56 | Catania |
| Pau | 4 – 0 | 66 – 37 | 29 | Bayonne |
| Saracens | 4 – 0 | 60 – 31 | 29 | Gran Parma |
| London Irish | 4 – 0 | 62 – 36 | 26 | Auch |