When playing a run in The Bazaar, the ultimate goal is to reach 10 wins in PvP in order to receive the maximum rewards.
Every time you win a PvP fight, one victory will be added above the clock. But each time you lose, your Prestige will drop.
Players begin the game with 20 Prestige, and the amount you lose depends on the day of the fight. You're essentially "taking damage" equal to whatever day it is.
This means losing PvP fights in the first few days won't lose you much Prestige compared to later days. So early losses don't matter as much then, right? Well, not exactly...

You see, builds in The Bazaar are definitely not created equal. You may initially think that a build that went 10-0 with a flawless victory would be stronger than a build that went 10-5, but this couldn't be further from the truth.
The later the day, the more time they have to scale and acquire more skills or enchants... and the right combination of these can create some insanely busted builds.

Essentially, the later the day, the more RNG plays a role. Remember that you're not the only one who can assemble a crazy build.
Matchmaking pairs you against an opponent from the same day as you, so if the day is late, there's a good chance you'll encounter a ridiculous, nonsensical, uninteractive nightmare build. Good luck!
All that said and half-joking aside, do your best to get as many wins as you can early on. You'll thank yourself later.