I've been and gone and entered the South Downs Marathon on June 14th (exactly 2 weeks inside my 50th birthday). That's only two and a half weeks away. It's not exactly the Jungfrau but it looks like a nice enough route. I'm not sure what the totla ascent is but it does seem to be very undulating to say the least.
Training's been steady. I've been getting out for a good run three times a week. I struggled (aka failed) to do a six minute mile on the treadmill last week which was disappointing (but it was first thing in the morning!).
My weight is slowly but surely coming down. From a high of 12st 10lbs in April I'm hovering at or below 12-7 (and have reached 12-2 after a long run). Need to get rid of that extra 7lbs over the next three weeks. That will make a difference.
Time for some intervals. What fun.