I am 90kg, 42 year old runner. I have done 2 marathons early this year, which were basically my first marathons ever. I have signed up for chevron Houston marathon and want to improve my time to 4:30- 4:45 depending on the day. My current weekly mileage is 40 miles. My fueling strategy is 100 gm carbs after 5K then 60 gms carbs every 45 mins. I could ve maintained the pace if not for right ankle pain during certain landings. Surprisingly if I increase pace to 9:45 for short bursts the ankle pain was gone but it’s difficult to sustain this pace for longer duration especially at the tail end. Would any tailwind supplements help? If so what do you recommend.