Half-marathonSub 1:20 (race pace: sub-6:06 per mile). Target times: 1:10 to 1:19. You should be capable of either a sub-36 10K, sub-60 10-miler or a sub-3:00 marathon. Training will be at least six days a week, with an average weekly mileage of 50 miles.
Sub-1:30 (race pace: sub-6:52 per mile). Target times: 1:20 to 1:29. You should be capable of either a sub-40 10K, sub-1:07 10-miler or a sub-3:15 marathon. Training will be six days a week, with an average weekly mileage of 40 miles.
Sub-1:45 (race pace: sub-8:00 per mile). Target times: from 1:30 to 1:44. You should be capable of either a sub-46 10K, sub-1:18 10-miler or a sub-4:00 marathon. Training will be at least five days a week, with an average weekly mileage of 35 miles.
Sub-2:00 (race pace: sub-9:09 per mile). Target times: 1:45 to 1:59. You should be capable of either a sub-1:05 10K, a sub-1:55 10-miler or a sub-6:00 marathon. Training will be three days a week, with an average weekly mileage of 30 miles.
Sub-2:15 (race pace: sub-10:18 per mile). Target times: 2:00 to 2:14. You should be capable of either a sub-60 10K, a sub-1:30 10-miler or a sub-5:00 marathon. Training will be four days a week, with an average weekly mileage of 25 miles.
Sub-2:30 (race pace: sub-11:26 per mile) Target times: 2:15 to 2:30. This is an ideal first-timer’s schedule, and combines running and walking. If you run already, you might be capable of either a sub-1:05 10K, a sub-1:55 10-miler or a sub-6:00 marathon. Training will be three days a week, with an average weekly mileage of 15 miles.
Training schedules are here:
http://www.runnersworld.co.uk/news/article.asp?uan=106(but I'm not sure if that is subscriber content only or not)
Think they are, so there are some here you can access without being a subscriber:
http://www.runnersworld.co.uk/news/article.asp?uan=107