| Quarter-Final | Semi-Final | Final | Winner |
|---|
 | SBA Pirates (34) |
| | | |
#47 Fri 01-Dec-17 12:20 (Pitch 7)
Loser placed 13th overall |
| SBA Pirates (19)§ |
| | |
 | Moscow Lads (5) |
| | | |
| | | |
| #55 Sat 02-Dec-17 9:40 (Pitch 2)
Loser placed 11th overall |
| SBA Pirates (7) |
| |
| | | |
 | Brussels Barbarians (14) |
| | | |
#48 Fri 01-Dec-17 12:20 (Pitch 8)
Loser placed 13th overall |
| Crusaders Rugby (14) |
| | |
| Crusaders Rugby (24) |
| | | |
| | | |
| | #62 Sat 02-Dec-17 12:20 (Pitch 7)
Loser placed 10th overall |
| Mako Armed Forces
(9th overall) |
|
| | | |
 | Bulldogs (34) |
| | | |
#51 Fri 01-Dec-17 12:40 (Pitch 7)
Loser placed 13th overall |
| Bulldogs (5) |
| | |
 | Sanitas Alcobendas (5) |
| | | |
| | | |
| #56 Sat 02-Dec-17 9:40 (Pitch 4)
Loser placed 11th overall |
| Mako Armed Forces (12)§ |
| |
| | | |
| 10 Commandments (0) |
| | | |
#52 Fri 01-Dec-17 12:40 (Pitch 8)
Loser placed 13th overall |
| Mako Armed Forces (22)§ |
| | |
| Mako Armed Forces (34) |
| | | |
