They don't. The High Score section might literally be the worst and most misleading feature about Keybr.com entirely. I've never witnessed such an abysmal calculating system, furthermore the registry for picking up on every submitted test is also broken, I've got numerous videos to show so. I actually don't know why any of you utilize it as a reference point, or remain in Keyr's 'Practice' section. But considering I've seen most of you guys in Multiplayer, I can understand why the greater margin of you are taking refuge in a mode where your typing isn't viewed in real-time by others. These tendencies produce linear results, and mediocre typists. I'd recommend Typeracer.com to you guys, but God forbid you lose one race and you quit instantaneously like most of you do in the Multiplayer here. The High Scores here are irrelevant, pointless, simple. If someone is handed the same aspect and ratio of characters to type as the next guy, but one of them does 80 WPM and the other does 140 WPM -- there is no situation in this universe where that 80 WPM typer should be uplifted over the distinctively superior typist that's almost doubled their performance rate.
Get. Out. Of. Practice. Section. It's. USELESS.