Hi Cliff,
The bread and butter of my training is two quality sessions a week and one longer run at the weekend. My quality days are usually Monday and Thursday and the longer run is on Saturday (12-14 miles at easy pace 7:20-7:30). The rest of the week is filled up with easy running (7-8min/mile pace) plus a gym workout (full body weights workout with fairly high reps & abdominal work, plus 20-30 mins boxing training, either jump rope/bag work/speedball or sometimes exercise bike). I aim for 50 miles a week plus the gym work/cross training.
As for quality workouts, I tend to rotate them over the weeks as follows:
1) Track session to include 7 x 200 metres, 7 x 400 metres, 7 x 300 metres slow with fast final 100 metres. All with 1 min rest.
2) Hill session: A 5-6 mile easy run separated by two blocks of 13 mins of running up and down two of the steepest hills I know of locally.
3) Session of 8 x 1/2 miles on a measured flat road circuit. Again 1 min rest.
4) Tempo run, 5-6 miles at 15 seconds per mile slower than 10K race pace.
5) Session of 4 x 1 mile again on the measured flat road circuit. 1 min rest
6) Lactate session: Easy running for 3 mins then sprint as fast as possible for 1 min. Repeat for 7 reps, no stopping. Nasty session!!
7) 5k - 4 mile time trial at predicted 10K pace.
All these require a good warmup!!
What I do really depends on my mood and whether there is a race looming, but I don't like to go three quality days without a track session or a hill session as a general rule.
Many folks are very secretive about their training, I'll tell anyone exactly what I do.....I like to see people smash their PBs and this lot have served me well!