Is a Half Marathon under 1:12 possible for me?

I'll guess 1:14. But go for it.

You have a good amount of talent to run 2:42 for having such a short background (# of years) with running. Kudos to you. I think 1:12 may be tough for you given your current fitness, but if you put in some work it is not impossible. I would expect the mile repeats you listed to be faster for a 1:12 guy. Also, where are the tempo runs?

The half marathon is really an extended 10k. Drop the 400s and work on threshold stuff, 3x2 miles at goal half marathon pace, 3 or 4x1.5 miles, 5-6-7 mile tempo runs. A strong long run each week and keeping your mileage up will give you success and this distance. Who knows, maybe 1:10 is possible?

Build into this stuff, you don't need to start these workouts at your goal pace. You clearly have an appetite to put in the work. This is good. Stay focused on your goals, be mindful of your training, and the sky is the limit. You got this! Best of luck!

Judging by this 7x1 Mile, I would say you are far. My Marathon PR is very similar to yours, 2h41, and my Half Marathon PR is 1h15. I have never run more than 70 miles a week. Honestly, I would average 5:35-5:40 in a 6 x 1 mile workout with 90s rest. I know, that's one rep less and 30s more rest, but still that's a superior workout than what you have done. If this 7x1 Mile was very tough for you, I doubt you will be able to run 1h12. Remember 1h12 is very superior to 2h42. Maybe you are in 1h15 shape (though I'd say 1h16-1h17 judging by this workout only), but running a 1h12 is different world than running 1h15.

2:42 off those workouts is quite solid, but no one runs close to 1:12 off of workouts at those paces. When I ran 1:14 at 39, I probably could have gone 1:12 on a flatter course on a cooler day but at any rate, I was running 100 miles per week, with 5M tempo of 26:43, mile repeats probably between 5:10 and 5:20, 800s in low 2:30s. Gradually build up mileage and workout quality and who knows what you'll be able to run in a few years.

bump

no. i've been running for a similar amount of time with a similar background and ran 2:48 in my only marathon, and could have easily run your workouts at that point. i'm in significantly better shape now and hoping to set some PRs in the coming weeks but still don't think i could sniff 72 anytime soon, but i could probably drop 6-8 x mile in 5:30-5:40 off 60s rest.

I could do those workouts, but I am around 1:20 for a HM.

You must be doing them at a fairly low effort, in which case posting them doesn't help anyone gauge your fitness!

artud2000 wrote:

bump

If you continued your current running, could you go under 1:12 in the next four to six years? Yeah, why not?

6 x mile (6:03, 5:57, 5:49, 5:52, 6:03, 5:53)

Three things:

1. develop a better sense of pace and effort (can't just do the workout, you gotta *know* you're fit).

2. then bring the mile reps down to 5:40 (1:26, 1:26, 1:26, 1:22 for all six within a sec or two), try not to rest between them; slow jog a lap.

3. work on your speed (strides several days a week + a short interval [meaning 150-300m 10-16 of them] session once every 10 days)

My guess is - no. For 1:12, I think for that kind of performance you'll need sub 2:35 marathon ability. And it appears that you are more endurance oriented.

HAH, sorry brother, not a chance. more like 115 tops

more like sub 230 depending on the course. 1:12 isnt exactly like... easy, you know? its 530 13.1 times in a row. youre doing mile repeats with a REST far far slower. I understand youre like at altitude or whatever but if I were a bettin man Id say way over 112 lol

Don't listen to the haters. There is always a chance.