I decided to change some things on this leaderboard, if anyone disagrees with some changes, let me know!

- Multiplayer subcategory
I replaced the 1P - 2P - 3P subcategories with "Singleplayer" and "Multiplayer" as both 2P and 3P were always empty when selecting 3on3 and 2on2 respectively.

- Hidden Finale
I deleted the full-game categories of the Hidden Finales as they were empty and also were even more RNG dependend as sometimes you can't even get access to the Hidden Finales, no matter what you do. ILs are still up as normal.

- Rewritten some rules
Rules are still the same, just explained a bit better with the exception of ILs which now allow full-game runs (timing starts when pressing "Advance").

- More categories
Both Any% and 100% are still viable categories that would be added once someone does a run of it.

What would the rules and requirements of 100% be? I’m interested

Would easily take an entire day, good luck if you actually decide to run this, youll need it! (also, you should probably practise the minigames first, the hardest difficulty is harder than you might think), rules:

Timing starts when opening a newly created save file the first time (creating the savefile needs to be shown in the video).
Timing ends after either unlocking the last unlockable or after beating the last minigame/battle.

After the timer stopped the video needs to go through all sports and show all outfits/colors for all characters and the hidden stages and show all minigames (playing them again is not required).

Everything required for 100%:

Characters: (In all sports including Sports Mix (the crystal))
All 4 Yoshi colors
All 4 Toad colors
Alternative outfit for Peach
Alternative outfit for Daisy
All 3 slime colors
Unlock Moogle
Unlock Cactuar
Alternative color for Ninja
Alternative color for White Mage
Alternative color for Black Mage

Minigames:
Unlock all 3 stages in both difficulties in Feed Petey
Unlock all 3 stages in all 3 difficulties in Harmony Hustle
Beat the score (shown at the top right while playing it) in all 3 stages in all 3 difficulties in Harmony Hustle
Unlock all 3 stages in both difficulties in Bob-Omb Dodge
Unlock all 3 stages in both difficulties in Smash Skate

Misc:
Beat all cups in normal and hard difficulty
Beat both Behemoth and Behemoth King at least once
Unlock all hidden stages in all sport modes (there are none in Sports Mix)

The only things I can’t find how to do online are how to unlock the extra mini game stages, and also what all of the different hidden stages are

They can be found here: https://www.mariowiki.com/Mario_Sports_Mix#Party_games
Most of the time Mariowiki has the answer to anything Mario related.

Summary:
All of them can be found and unlocked with alternate paths or by playing them for a while
Basketball/Feed Petey - Win 15 matches for each court
Volleyball/Harmony Hustle - Just win the stage and you unlock the harder version for it
Dodgeball/Bob-omb Dodge - Win 20 matches for each court
Hockey/Smash Skate - Win 20 matches for each court
They all only have one unlockable difficulty except Volleyball which has three iirc

And if you really want to do this (trust me, it's gonna be really annoying!), you should route the alternate paths, they can save you a lot of time if you use them correctly! GameFAQs has a guide which describes the paths a bit so that might be a good starting point: https://gamefaqs.gamespot.com/wii/997753-mario-sports-mix/faqs/61907
I also planned to route them a bit on my own but I didn't have too much motivation lately so that might take a while...

Good luck!

I don’t think I wanna do a 100% run but what I’ve been thinking of doing is slowly working on one over time just using my phone stopwatch, and pausing it whenever I’m out of the file, to get a rough estimate of how long it would take. And then maybe someday, when I have a whole lot of free time, I’ll do it. But I wanna do it casually first, and time it that way to see how long it’ll generally take

One more thing about 100%, you should probably put in the rules something about beating both the behemoth and the behemoth king as well

Thanks, fixed it!

I have a couple of questions about 100%.
1. Do you have to play the final stage on each difficulty in the mini games aside from harmony hustle or just unlock them?
2. By ‘unlock all of the hidden stages’ do you mean literally do all of them (requiring multiple runs through) or just get to the secret finale level and beat that on all cups?

I'm pretty sure that:
1. Just unlock them (except Harmony Hustle)
2. The courts you have to unlock are these: https:/​/​www.​mariowiki.​com/​Mario_Sports_Mix#Unlockable_courts

^this
Though I still think 100% is one of the dumbest ideas I ever had