Seems like there are lots of sponsored rides in the fall around here. Here are my weekend events over the next 3 weekends:

9/21/13 - Metric Century
9/29/13 - Metric Century
10/5/13 - Century

The metric century and century rides will be SAG supported.

I also plan on riding my normal schedule of 20 miles 4 days during the week and 30 miles on the weekend day I don't ride in an event.

Right now I can ride 30 and 50 miles on consecutive days with no problem. So, should I be little less aggressive and skip one of the events?

No. You'll do fine.

From the miles you're putting in and space between rides, you'll have no problems. From your schedule, I'd take the day off before each long ride to reserve some energy for the big ride.

If you're currently riding 400 miles a month, or you keep fit with some alternative means, you should be fine. A complete couch potato might need to scale back.

I am riding 600 miles a month right now.

That's a great base for longer rides. Just be sure to drink water or sports drinks and consume enough food to stay fueled. Shorter rides can be completed with minimal additions for water and food. Rides longer than two hours need regular eating intervals and plenty of fluids.

Enjoy!

If you are doing 600 miles a month, you will do fine. Don't over-think the miles and do what you know how to do. Just keep hydrated and fueled. I normally ride close to and very often more than 800 miles a month; last month was 747, this month is at 430. Before my riding buddy required shoulder surgery, we were doing 1 to 2 66 mile rides a week and at least an 88 or century ride once a month.

Heck those metrics are good training for your century. In between those go by how you feel.

There is no such thing as "too much riding". I did four back to back metrics in June and doing the same this month. Of course I'm retired and have nothing better to do.

That's fine. Like it has been stated, take the day off the day before each of the rides, or, at most, do a very, very, easy spin short ride, meaning very leisurely, 15 miles and no more than 20 miles the day before--I would make them flat miles(especially for the 100 miler).

With the amount of riding you do, you should do fine. That is about the mileage my wife and I use to train for our longer tours only without the centuries.

A few years ago my wife averaged a little over 50 miles a day for 74 consecutive days on a fully loaded touring bike; so no, that is not too much riding for someone in reasonably good shape. However, she was a comparative youngster, just in her early 50's

If you or your legs feel a little dead after the ride, then take a day off or do an easy recovery ride. Listen to your body. There's pain and there's discomfort. If you are in pain, that's your body telling you that you did too much and you need to stop, but if it's just a little discomfort, then that's your body telling you that you have to take it easy and allow it to recover, so if you feel totally fine with no discomfort, then your body is telling you "YIPEE! WE ARE HAVING FUN!"

Yesterdays brief chat was with a couple guys riding a credit card tour of the coast, they had reservations
about 60 miles apart , of their overnight lodging.

So were essentially doing a string of 100Km days.

Not a problem. You can do a lot more than you think you can. Just ride your pace .

I don't mean to sound condescending, but how can anyone but you know how much you can ride? What you've proposed sounds reasonable to me (at 80 miles in the century, you'll be praying for death...). If you're riding as much as you say you are, though, you should have a feel for what you can do. Go for it, but be prepared to hate the last two hours of the century.

This! At our "age" an occasional rest day is necessary for optimun fitness.

Good luck!

I think that is VERY optimistic.

Does not sound like too much, assuming the routes are not severely hilly. Eat and drink enough not to bonk. I envy you!

My rule of thumb is, if you regularly ride X miles without any difficulty, then you can ride up to 2X miles without any special preparation. It may be a bit of a challenge and your ass may be sore, but you will make it. For example, if you regularly ride 30 miles with ease, then no problem hopping on the bike any old morning for a 60 mile ride.

(Ok, this is just for moderate value of X. I don't claim this rule holds at much larger or smaller distances - if you regularly ride 300 miles wth ease, does that mean you can hop on the bike and do 600 miles any time - probably not.)

You should be fine as long as the rides are about the same type of hills, altitude and climate as you are accustomed to.

+1