Last year i had 300 miles total riding trails on my modified TREK 820, it was my only bike.
This year i had 4 bikes, 2 road, a hybrid & mountain.
I sold my TREK 1000 when i bought the TARMAC which has almost 1000 miles in 6 weeks of winter weather.
This year i have over 3K miles on all bikes.
Im getting fatigued due to the cold weather and prolly need to take a week off but im a fulltime cyclist.
Im a big muscular guy that rides for fun & fitness.
If they have weight classes for racing based on your size i may do that.
Otherwise the 160-170 pound rider is much faster uphill than i am.
But i pass you on the downhill .... its a vicious cycle ...