
How to break sub 4 in your marathon!
Hi first timers!
Only me again 😄
I see a lot of people in firstmarathon aiming for that sub-4 hour mark for their first marathon.
I wanted to share some of the biggest takeaways from my own training that finally got me under that 4-hour barrier.
12 marathons down, 8 under sub 4.
It took me a few failed attempts to get it right (and still learning!), but once I got it all sorted in training, nutrition, carb loading, mindset, fueling and execution on race day I haven't looked back.
Put together a little video (well, 15 minutes!) of some of the main things to do during your months of training for the marathon - that worked for me.
The video is here if your interested:
https://youtu.be/4O-Yu4B-p2c?si=-1T6pxCD6lIuIXhY
As always not to be spammy, here is the general gist of the video.
1. You need a pace buffer
To run exactly 3:59:59, your average pace needs to be 5:41/km (9:09/mile). But aiming for that leaves you with basically zero margin for error. Instead, aim for a 10-minute buffer. Aim for a 3:50 finish time. Meaning your actual target pace in training (and in your head!) should be around 5:27/km (8:46/mile).
It gives you breathing room for water stations, crowded corners, tough moment or a bathroom break (it can happen..!)
2. Are you actually ready? (The benchmarks)
A good way to gauge if you're in sub-4 shape before starting a block and attempting a sub-4 is seeing where your shorter distances are at.
Roughly speaking:
5K: ~25 minutes
10K: ~52 minutes
Half Marathon: ~1:54
Ish. Not an exact science but those are the sort of numbers to be hitting.
If you are not there yet, don't stress it. Just spend a few extra months building your base before jumping into that sub-4 14-18 week marathon block. Race shorter distances if needed.
3. You don't need carbon shoes
Don't blow your budget on carbon plates if you don't want to. Just get a solid rotation, one pair for easy runs, one for speed work, and maybe a fresh pair for race day (having worn them for a couple of long runs beforehand). Carb plated shoes definitely help (more in recovery after the marathon I’ve found).
4. The training block
Aim for 14-18 weeks, running about 5 days a week. I’ve tried shorter, but doesn’t seem to work. You have to mix it up alittle (in basic terms):
Uphill repeats: These are super for building strength and running form without the grind of a flat long run.
Speed work: Intervals and Fartleks to get some turnover in your legs. Once, twice a week max. But only one needed for sub 4 and if you’ve been running a while.
Easy runs: 30-50 mins at a spot on conversational pace. (I know boring!)
The Long Run: Gradually build up to 30-32km (about 20 miles). Don’t worry when you start - those distances look intimidating but by weeks 8 and 10 you’ll be ready.
5. DO NOT run the full distance in training
I see this question so much from the running club I’m a “pacer” for: “How will I know I can run 42.2km if I don't do it in training?"
Do not run the full distance before race day. The injury risk is huge, and it will take you 2-3 weeks just to recover from that one run, ruining your training block. Max out around 32km, or if hot and humid, max out your time on feet to 2.5 - 3 hours. The crowds and adrenaline will carry you those final 10km…..(I say that with a smile on my face).
6. Fueling and Carb Loading
Start carb loading 3 days out, we’re looking at 80% of your plate to be carbs (white rice, pasta, pizza, bagels etc). If you struggle to eat it all, drink liquid carbs like fruit juice (7-10g of carbs per kg of body weight is the target). On race morning, stick to what you know.
and practiced with. Simple, quick and relatively easy to digest 2 to 3 hours out before the marathon (think bananas, bagel, small helping of oats/porridge etc).
For me, it’s always bagels, jam, a banana, and coffee.
During the marathon take a gel every 25-30 (ish) minutes, put an alert on your watch if needed. You might end up taking up to 8 gels (22g per gel).
Practice this on every single long run so your stomach gets used to it, don’t shove down extra if you miss one!!
7. The pacing reality
Everyone talks about negative splits (running the second half faster), but for a first marathon, it's incredibly tough to pull off - actually forget that, first or 50th it’s difficult to do!! Most of us (myself included) run positive splits, banking a bit of time in the first half and holding on for dear life at the end (marathons wouldn’t be the same otherwise! 😂) Just get comfortable with that 5:27/km pace during your long runs - long runs, easy pace, last 5-8k marathon pace on SOME of them.
8. The Golden Rule
Nothing new on race day. No new shoes, no new gels, no new breakfast.
Basic stuff only if you know it!
Happy running and always happy to answer questions or give feedback on here or over on the channel!
Paul