Sounds like you produced some lactic in the 300m which you then used as fuel for the 150m. There are some posts here on this issue with reference to Marita Koch’s 300m time trial before her 400m world record.
Sounds like you produced some lactic in the 300m which you then used as fuel for the 150m. There are some posts here on this issue with reference to Marita Koch’s 300m time trial before her 400m world record.