well real racers ( 10 speeds or is it 20 speeds nowadays ) they don't have fenders, you just suck it up and keep pushing those pedals.
On my last racer back in 1990 i had a plastic click on fender for the rear, it was mounted most of the time as i by then just used the bike for personal transport.
I cant recall modding any of my childhood bikes, and i got my first 10 speed at the age of 11, and it too like all bikes aside for one was stolen.
And the one that was not stolen was run over by a tractor trailer making a right turn in front of me at a intersection, only parts surviving was the brakes and brake handles and the hubs for the 2 wheels, all the other nice Campagnolo parts and the light weight frame was flat as a pancake.
Took the surviving parts and build my last racer with them, and it was then stolen after 7-8 months or so.
My dad both raced oval track and road races, some times they drove like 80 - 100 Km to get to a race, then do that and then bicycle the 80 - 100 km home again.
People was tougher back then just after the war.
I think my personal longest trip was like 200 km or so, but 80 - 100 Km was not a problem most days, it was either bicycling or be together with other people i dident really like, so i logged a lot of Km back then
Okay when you reach 10 hours or so in the saddle it do start to get a bit boring
EPO or not the guys doing TDF and other races always had my utmost respect