Hi running Gaf,
I did my first half marathon and now I think i want to keep going. I originally did a half marathon not fun but just to see if I could (I'm no longer in my 20s...). I got the time I wanted (barely under 2 hours), but after seeing all the other good runner pass my by and checking my results afterwards and comparing mine to others, I want to do better!
I have a question for experienced distance runners. The half marathon was the second time I ran 13 miles and both times my legs decided to stop working around mile 10. Is there a certain kind of training should I do to fix that?
Regular mileage will fix that. Dead legs are rarely an issue in a half in trained individuals.
Under 2 hours is decent for your age with minimal training. You'll see big gains with dedication to training.
Did you do any kind of structure training for your first race? If not, I suggest you start a running base: run 5-7 days a week all easy by feel for a couple of months. If you feel like running faster some days do it. The important goal is to have fun while getting used to the mileage and building your aerobic house so you can completely benefits from event specific workouts later. Take a down week (less mileage) every 3-4 weeks to allow recovery.
Progress until running 1h30 easy is just a normal day for you (not that you should do it every day). Then you're ready to start event specific training.
A half is run pretty much at lactate threshold or just below it. You're at threshold when you run confortably hard; a pace you could keep for about an hour.
Standard workouts for the half are:
a)steady LT runs for 5-10k
b)LT intervals 3x3k with ~1k easy in between
c)fast finish medium long (15-25k with last 5 at LT or faster). This will get you used at keeping the fast pace when tired at the end of your race.
For raw speed you want to do strides (100m sprints with complete recovery between, goal is to learn and improve legs turnover, not work anaerobic engine) and hill sprints.
If you want to get started on serious running I suggest any books by Pete Pfitzinger or Jack Daniels. Not much for their cookie cutter plans but for the training principles.
Faster Road Racing: 5K to Half Marathon might be the best fit for your current needs.