Stage 17: Brecon to Beacons Reservoir (8.90 miles, +892 ft net elevation change)
| Pos | Runner | Club | Category | Time |
|---|---|---|---|---|
| 1 | Nigel Adams | Swansea Harriers | Open | 48:24 |
| 2 | Kenny Davies | Newport Harriers | Open | 49:10 |
| 3 | Alan Donovan | Cardiff AAC | Open | 52:17 |
| 4 | Frank Lotus | Horwich RMI Harriers | Open | 53:36 |
| 5 | Ray Fundalski | Pegasus | Open | 53:55 |
| 6 | Dave Hall | Kendal | Open | 55:11 |
| 7 | Bernie Tuck | Stragglers/Serpentine | Open | 55:24 |
| 8 | Nigel Milbourne | City of Bath | Open | 55:34 |
| 9 | John Granger | Beddau | Open | 56:59 |
| 10 | Dave Hurst | Horwich RMI Harriers B | Open | 57:53 |
| 11 | John Walsh | Les Croupiers | Open | 59:32 |
| 12 | Brian Smith | Les Croupiers | Vets | 01:00:20 |
| 13 | Algy Morgan | Cardiff High School Old Boys | Open | 01:01:27 |
| 14 | Roy Buss | San Domenico | Open | 01:01:44 |
| 15 | Brian Thomas | Bridgend | Open | 01:02:45 |
| 16 | Rodney Savage | Western Mail & Echo | Open | 01:02:45 |
| 17 | Mike Gowing | Les Croupiers B | Open | 01:04:11 |
| 18 | Bryn Jones | Rockwool | Open | 01:05:07 |
| 19 | Rob Phillips | Fairwater | Open | 01:05:12 |
| 20 | Chris Barker | Barry & Vale Harriers | Open | 01:07:04 |
| 21 | John Robertshaw | Newport Harriers B | Open | 01:09:18 |
| 22 | Tony James | Islwyn | Open | 01:09:27 |
| 23 | Don Janes | Pontypridd Roadents | Open | 01:09:29 |
| 24 | Colin Crooke | Risca | Open | 01:10:51 |
| 25 | Graham Lindsey | Norwich Union | Open | 01:14:31 |
| 26 | Julie Dimond | Les Croupiers | Ladies | 01:18:20 |
| 27 | Kathy Crilley | Stragglers/Serpentine | Ladies | 01:20:24 |
27 result(s)