Shop › Marathon Sub 4 Hour 30 Training Plan Image 1 of 1 Marathon Sub 4 Hour 30 Training Plan £7.00 Prepare for a marathon under 4 hours 30 minutes with an 18-week plan built around a 6:24/km goal pace. Add To Cart Added! Prepare for a marathon under 4 hours 30 minutes with an 18-week plan built around a 6:24/km goal pace.