| 1 | Dorothy Wilson | 53:06 | | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | F |
| WCH | | | (164) | (165) | (166) | (167) | (168) | (169) | (170) | (163) | (171) | (172) | (156) | (158) | (159) | |
| W65 | | | 3:42 | 7:19 | 10:04 | 15:13 | 22:26 | 28:05 | 29:23 | 31:45 | 36:03 | 43:07 | 46:47 | 51:04 | 52:17 | 53:06 |
| | | | 3:42 | 3:37 | 2:45 | 5:09 | 7:13 | 5:39 | 1:18 | 2:22 | 4:18 | 7:04 | 3:40 | 4:17 | 1:13 | 0:49 |
|
| 2 | Heather Shilling | 66:42 | | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | F |
| WCH | | | (164) | (165) | (166) | (167) | (168) | (169) | (170) | (163) | (171) | (172) | (156) | (158) | (159) | |
| W65 | | | 3:46 | 8:14 | 11:02 | 19:47 | 23:54 | 42:02 | 43:30 | 46:42 | 52:07 | 56:43 | 60:43 | 64:50 | 65:57 | 66:42 |
| | | | 3:46 | 4:28 | 2:48 | 8:45 | 4:07 | 18:08 | 1:28 | 3:12 | 5:25 | 4:36 | 4:00 | 4:07 | 1:07 | 0:45 |
|
| 3 | Pamela Emberton | 76:41 | | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | F |
| WCH | | | (164) | (165) | (166) | (167) | (168) | (169) | (170) | (163) | (171) | (172) | (156) | (158) | (159) | |
| W75 | | | 5:08 | 11:38 | 15:59 | 24:47 | 28:00 | 37:46 | 40:38 | 44:40 | 54:07 | 63:58 | 68:11 | 73:29 | 75:31 | 76:41 |
| | | | 5:08 | 6:30 | 4:21 | 8:48 | 3:13 | 9:46 | 2:52 | 4:02 | 9:27 | 9:51 | 4:13 | 5:18 | 2:02 | 1:10 |
|