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So I'm currently training for a hilly 10k race.
My current PB on a flat measured route is 38mins 20secs, but the 10k race I am doing is quite hilly and mostly on trails so I am expecting about 42mins in the race. I have completed the route several times in the last week, so I know this is a realistic time.
A week ago (three weeks before race day) I decided that I would trial dropping my race weight down to 10 stone for the race (I am normally just under 11 for races). I was 11 stone 2 pounds and I am 5foot 9inches, so I wasn't over weight. This would see my BMI drop from 23 down to 20.6 which would still be in the normal range. I only plan to lose fat and maintain muscle. I have currently lost 5 pounds with two weeks till race day.
I know there are lots of people out there who will say they lost weight and got quicker. I imagine a lot of these people started training more which contributed to their improved speed as much as the reduced wight, where as I do not plan to up my mileage from my existing 80km a week.
My question is, for those regular runners who drop to weight in the month before a race without drastically altering their training. Does this make a big difference? I appreciate everyone is different and this will affect people differently, but does anyone know how roughly how much quicker I could be by losing this weight?
Any views or advice would be greatly appreciated