IntroductionAs has been explained on an earlier page the graphs shown here have age as horizontal axis and on the vertical axis percentage of the OC world record. To the right you find the discipline. In the graph:
1. Blue line: masters world records according to wikipedia (as of 20 november 2012)
2. Purple straight line: a line through two records, such that all other records are below this line
3. Green line: results that count as 100% according the current official age gradings (system 2010)
A hundred percentBecause some OC records have been or seem to have been set with illegal means not always the OC record is taken as 100%, especially women's records are affected. In the women's shot put some masters records jump outside the graph, because also those masters records are of 'DDR/GDR-quality', to give it a name. All data counting as 100% can be found in the all time lists (distances in meters, times in seconds; to the right times also in hours, minutes and seconds):
So, for the men all OC records are taken except for shot, discus and hammer, for the women only these OC records are taken: 5000, half marathon, marathon, high, pole, triple, hammer, javelin, weight and long hurdles. The others are supposed to be much influenced by drugs, but it remains unclear if the taken OC performances are drug-free.
Hurdles and steeple have not yet been analysed. Running disciplines are without distances that are not often done and have records of less quality, both for the OC and for masters. (No graphs: 50i, 1000, mile, 2000, 15K, 10 mile, 20K, 1 hour, 25K, 30K).
The location of the green line in the graph depends on what has been taken as OC-record. In designing age grading system 2010 quite rigorously records have been put aside when drugs are supposed to have played a role.
Backgrounds of age gradings
Three sytems of age grading compared
Differences between disciplines
A mathematical model of gradings
The model in use
Tests, fine tuning, problems
Weia Reinboud (weiatletiek (at-symbol) xmsnet (dot) nl)