Time travel

I was talking with my son the other day and we were talking about my races. I told him after the Vermont 100 I am going to start doing timetrials on my bike. A few days later he asks "Dad are there other people that time travel?" I was perplexed at first but then figured out he meant time trial. I think I like his idea better. No Tristan I will be the first. How fast did that Deloren go in back to the future. I think I can beat it.