I'm a supervet, but have been a supervet for the whole of my running career (2.5 years). I set 10k and 10 mile pbs in the first six months, my half pb was set after a year, and my marathon pb after 18 months. No pbs since last march (half) but hoping for some this year....
I`m 51 and have just returned to running after an eight year break due to continue injuries and lack of motivation. So when I getting racing again I`m looking forward to setting some `new` PB`s as I`m now in over 50`s age group.
my last lifetime pb's were 10 years ago. however i did run my best half time for 8 years last december. as a 52 yo i look at targets and age pb's. for me a measure of fitness is a 40 min 10k, which shows i''m back in shape. my goal is 38 something which has eluded me by 10 seconds so far this season. i have however won more age category races (one) at 51 than i did before(none), and generally manage to get in the top half dozen v50's as opposed to top 20 v 40's before.
i do think however that the general standard is lower now than 10 years ago. times that would see me 50th in races would now make the top 25.
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it's not how fast, it's how often