with a marathon and a HIM to plan for
I guess it depends on which one is your A race?
The only other thing I would add is that by all accounts cycling helps running much more than running helps cycling!
Best suggestion is to bin those two races, sign up for an IM and kill 2 birds with one stone!
You can adapt your marathon training plan to an extent. The long run is key but you can swap out some of the shorter runs for swim or bike sessions. If you've a reasonable base on the bike over the winter, 9 weeks is plenty of time to build that up to a decent 56 mile HIM ride.
You can also swap any of the pre-marathon races (the half marathons on Feb or March that many plans include) for one of the spring duathlons without doing your marathon any harm at all.
I did VLM this year (not in next year ;-( ) and did run training with a once a week swim in a masters session. Did virtually no biking all winter. As soon as the VLM was done I had a half a week off and did bike training and Open Water swim training. HIM was a doddle 4 or 5-weeks later.
I haven't done much biking for years but it is my strongest discipline (based on triathlon time results) so this may not work for everyone. 50 mile flat bike was a 2:38
The marathon training I did was the FIRST plan and therefore only 3-days a week and that got me a 4:07 (given I am a 15.5 stone 5ft 9 ex-rugby prop forward) which I was quite happy with. Clearly sub-4 would have been better but I got held up a lot and obviously could be lighter.So marathon splits were around 9:10 mins/mile
In the gap between VLM and the HIM I think I did one or maybe two runs of 6 miles at most and the legs held together for 14 10-minute miles with a run walk strategy in the HIM.
fat buddha wrote (see)
"that got me a 4:07 (given I am a 15.5 stone 5ft 9 ex-rugby prop forward)" given I'm a 16+ stone, 5'10" ex-rugby prop forward with a 3:59:52 marathon PB from London.....and curiously my 1st FLM was 4:07 when I was probably closer to 15.5 stone...... small old world eh??
we can all run faster if we train more and train smarter - but we do other stuff
But I think if you are a bit heavier then getting faster results in much greater impact forces risking injury more. It has a bit more relevance here because when mass is rolled along on a bike it is not such an issue but I do get to benefit from the powerful legs rugby gave me.
FB are you a stronger runner or biker?
Sorry dinner was ready.
The point was that big fat blokes bike well compared to their running capability and therefore my training from marathon to HIM may not suit everyone.
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