If cycling is your primary sport, schedule your important (key) cycling sessions then make sure you don't do a hard or long run the day before that cycling session. Otherwise, your cycling workout will be compromised. I'm speaking as a 50+ year old so recovery is key for me.
Okay. So this week's training as an example week:
Mon - Moderate - 2.5 hours (2hr tempo)
Tue - Recovery commutes - 2.5 hours
Wed - Easy with openers - 1.5 hours
Thu - Club 10m TT - 2 hours (inc. ride there + back)
Fri - Endurance - 4-5 hours
Sat - Off
Sun - Moderate - 4 hours (3hr tempo)
This is the final week of a block so pretty heavy before recovery next week. Also I have a lot of free time (student) but will be back to full time working in the next month. When would you add runs? After the tempo on Monday, race Thursday and tempo Sunday? Easy days easy, hard days hard and all that...