If a person played a 1000 games and won all, what would their ELO be?

Starting with 0 Elo and you are older than 18:
After the first 9 games: 2.786 Elo
After the first 18 games: 2800.5 Elo
After the first 27 games: 2813.6 Elo
After the first 36 games: 2825.7 Elo
After the first 45 games: 2837 Elo
After the first 54 games: 2848.3 Elo
After the first 63 games: 2858.7 Elo
After the first 72 games: 2868.2 Elo
After the first 81 games: 2877.7 Elo
After the first 90 games: 2886.2 Elo
After the first 99 games: 2894.8 Elo
But game no. 100 is just a draw: 2889.9 Elo (-4.1 Elo)
That's Magnus' problem: Chess is very drawish at Grandmaster level.

@Splorer said in #8:

Assuming his rating also started at 2500 and the K-factor (how much elo is being bet?) is 16, he should end up with a rating of 3279.35. K-factor of 10 would result in 3195.07.
K factor for FIDE +2400 .
it the maximum would actually depend on how many rounds per tournament si. With 1 round tournament (for instance playing onli in nationa teamp competitions) player would gain 0.8 points indefinately
9 round tournament 1st game would give the 0.8 rest round about 0 (after the rating is already more tha 400 pts bigger than rest of the folks)
obviously winning 1000 games in a row is not possible but to original question: It depends on starting rating and opponnets rating but about 600-800 points above competition would sound about right

@Meriten said in #11:

Starting with 0 Elo and you are older than 18:
After the first 9 games: 2.786 Elo
After the first 18 games: 2800.5 Elo
After the first 27 games: 2813.6 Elo
After the first 36 games: 2825.7 Elo
After the first 45 games: 2837 Elo
After the first 54 games: 2848.3 Elo
After the first 63 games: 2858.7 Elo
After the first 72 games: 2868.2 Elo
After the first 81 games: 2877.7 Elo
After the first 90 games: 2886.2 Elo
After the first 99 games: 2894.8 Elo
But game no. 100 is just a draw: 2889.9 Elo (-4.1 Elo)
That's Magnus' problem: Chess is very drawish at Grandmaster level.
But u start with 1000 in this problem

9 games later that person from 2 ELO to 2800 ELO.
What an inspiring story!

@sheckley666 said in #9:

@Splorer Did you consider that with FIDE elo he would get at least one point for every win?
Ah, nope. In that case, K=16 returns 3790.08 and K=10 returns 3705.6. In both cases the change in ELO would drop below 1 after about 180 games.

They'd be banned lol

@K_Tejaswi_1 said in #3:

i think it is 1000 times 2500 =1.205 million.

I am the president of FIDE, and can confirm this is absolutely correct.

@vegan_cannibal said in #7:

@Chesserroo2 Polgar is no weak player, she was widely accepted as the greatest female player ever. I believe his record against her is something like 9-2-1, that may be wrong, but I think she has only beaten him a few times.

You mean 1 of the greatest players ever (man or woman). She was in the top 10 overall!!!

Peak ranking: No. 8 (July 2004)

3000