. It has been widely used since then. The formula is T2 = T1 x (D2/D1)1.06 where T1 is the given time, D1 is the given distance, D2 is the distance to predict a time for, and T2 is the calculated time for D2.

At a Glance Profile Nickname: Wotsit Age: 33 Running for: 2 years No. of marathons: 1 PBs: Half-Marathon 2:13 Marathon 5:08

If you're running a marathon this spring, you're about to enter the most critical – and difficult – four weeks of training, when 1) your weekly mileage is at its peak; 2) your motivation may be flagging; and 3) you're most likely to get sidelined

At a Glance Profile Nickname: Sue C Age: 36 Running for: 3 years No. of marathons: 2 PBs: 10K 43:00 Half-Marathon 1:37 Marathon 3

At a Glance Profile Nickname: Mystic Age: 35 Running for: 15 years No. of marathons: 0 PBs: 10K 52:00 Half-Marathon 2:08

before my first marathon (Amsterdam 2006), I averaged three runs per week and a total weekly mileage of about 25 miles. I did the marathon in 2:57. A typical running week for me at that time involved one track session, one hilly run and one long run

At a Glance Profile Nickname: Right Said Aouita Age: 35 Running: 12 years No. of marathons: 1 PBs: Half-Marathon 1:41 Marathon 4:00:10

:55 Half-Marathon 1:45:04 Marathon 4:14:27 Strengths: When I put my mind to a task, I'll give it 100 per cent. Weaknesses: Cake and chocolate. Most looking forward to: Having a 3

, there are plenty of marathons around so I’m thinking about maybe trying again in September. (Updated 27/04/09) Read more Sue (aka Sue C) Finish Time: 3:36:00 Target Time: as close to 3:15 as possible Sue says: I knew from Mile 3 that things weren't going