Stage 17: Brecon to Beacons Reservoir (9.60 miles, +892 ft net elevation change)
| Pos | Runner | Club | Category | Time |
|---|---|---|---|---|
| 1 | Sandy Johnston | Les Croupiers | Open | 57:08 |
| 2 | P Thomas | Bridgend | Open | 57:40 |
| 3 | Tony Gough | TA Wales | Open | 59:58 |
| 4 | B Smith | Les Croupiers | Vets | 01:03:41 |
| 5 | R Brandon | Bridgend B | Open | 01:04:20 |
| 6 | S Legalloudec | Army Apprentices | Open | 01:04:41 |
| 7 | Fred Hooper | Cardiff High School Old Boys | Open | 01:05:56 |
| 8 | P Tout | Pegasus | Open | 01:06:53 |
| 9 | J Smith | San Domenico | Open | 01:07:32 |
| 10 | Terry Caveney | Les Croupiers B | Open | 01:09:05 |
| 11 | P Wood | Barry & Vale Harriers | Open | 01:11:43 |
| 12 | A Ralph | Les Croupiers | Ladies | 01:18:15 |
12 result(s)