Fun stats about the Lichess 2025 Winter Marathon • page 5/5 • Community Blog Discussions • lichess.org

Another category that could be subject to abuse is highest rating point gain/loss. Since I assume the winner will either be a new account created for the event, an inactive account or one that is cheating. The biggest rating loss one also looks like sandbagging or account being sold since it's hard to believe that in just under 2 years someone went from 2200ish in blitz to 1300ish in blitz in the space of 2 years.

I agree, probably I need to limit it to accounts which do exist for some minimum time (>3 months or something)

If it's easy to filter then an account with a certain RD or less at start of the event could be a good parameter to use. Since new accounts start with a RD of 350 and inactives that can get big swings gradually increase RD. A 2 month old account that has played 100s of games probably has a relatively stable rating

maybe it is easier to just exclude provisional accounts (i.e. follow the Lichess policy if an account rating is reliable), but I need to check the impact

@KMcGeoch said in #38: > > > Another category that could be subject to abuse is highest rating point gain/loss. Since I assume the winner will either be a new account created for the event, an inactive account or one that is cheating. The biggest rating loss one also looks like sandbagging or account being sold since it's hard to believe that in just under 2 years someone went from 2200ish in blitz to 1300ish in blitz in the space of 2 years. > > > > I agree, probably I need to limit it to accounts which do exist for some minimum time (>3 months or something) > > If it's easy to filter then an account with a certain RD or less at start of the event could be a good parameter to use. Since new accounts start with a RD of 350 and inactives that can get big swings gradually increase RD. A 2 month old account that has played 100s of games probably has a relatively stable rating maybe it is easier to just exclude provisional accounts (i.e. follow the Lichess policy if an account rating is reliable), but I need to check the impact

Shamika_SS

This was amazing to read! So much dedication!

WildWizard

This is the one marathon I missed because I just got wifi at the house yesterday. :(

I hope y'all enjoyed it :)
5+3 is a longer tc for me.

This is the one marathon I missed because I just got wifi at the house yesterday. :( I hope y'all enjoyed it :) 5+3 is a longer tc for me.

Bleak_Mind_Emptiness

edited

Ratings are often very relative and can be misleading. The same variant can have different TCs, from ultra-bullet to classic. And if we consider standard blitz, there are also different TCs, from 3+0 (almost a bullet) to 5+3 (almost a rapid), respectively. And even here, a player's rating can easily fluctuate significantly (by around 300 points). And don't forget about berserk!
At the same time, the RD decreases to a minimum quite quickly.

Ratings are often very relative and can be misleading. The same variant can have different TCs, from ultra-bullet to classic. And if we consider standard blitz, there are also different TCs, from 3+0 (almost a bullet) to 5+3 (almost a rapid), respectively. And even here, a player's rating can easily fluctuate significantly (by around 300 points). And don't forget about berserk! At the same time, the RD decreases to a minimum quite quickly.

Atharv911

Who has the time to add ALL players' games!!!!

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