Format
KW
Kszan, William Peterson
🇧🇷FIDE 22799214· Male· Brazil· Born in 1993
Follow William Peterson KszanTrack his monthly FIDE ratings, games, tournaments and more.
William Peterson Kszan, a 33-year-old Brazilian player, is rated 1418 — his current career high. He plays occasionally (5 games in the last 12 months). Recent appearance: Curitiba Chess Open 2026 STD Torneio Internacional Cidade de Curitiba.
Current rating
1418
Standard
Rpd—·Blz—
All-time high
1418
at best
May 2026 · age 33
May 2026 · age 33
Activity
30
games / yr avg. · ≈3/mo
5 past 12 mo
classical only
Active
classical only
Active
Signature stat
#213,591
#213,591 · players worldwide · of 218,279
Career timeline
4 entries2026
Crossed 1400
at age 33
May 2026
Crossed 1200
at age 33
May 2026
All-time peak 1418
at age 33
May 2026
First FIDE rating
1418 · at age 33
May 2026
Standard rating history
Peak
FIDE title
Threshold
First rated
Activity & highlights
Top opponent
Evolution
0
1418 → 1418
Tournaments
1
5 games
Score
0.5/ 510.0%
0W1D4L
Top 1 win
1.[D]vsMariana Safadi1,559·Curitiba Chess Open 2026 STD Torneio Internacional Cidade de Curitiba·R2·+7.7
Top 3 losses
1.[L]vsGustavo Tsuyoshi Hasegaw Shirabe1,453·Curitiba Chess Open 2026 STD Torneio Internacional Cidade de Curitiba·R5·-18.0
2.[L]vsSofia Carneiro Fraga1,554·Curitiba Chess Open 2026 STD Torneio Internacional Cidade de Curitiba·R4·-12.5
3.[L]vsWilton Yokomizo1,602·Curitiba Chess Open 2026 STD Torneio Internacional Cidade de Curitiba·R3·-10.3
Last 12 months — tournaments
1 event| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Open Swiss | Apr 2026 | 0.5/5 | #207 | 1222 | 0.0 |
Rankings
/
Brazil
#3,049
out of 6,523 players
Americas
#25,095
in continent
World
#213,170
out of 400,000+
National ranking
Europe & World
Europe
World
Brazil
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| 3 | 🇧🇷Follow Alexandr FierTrack their monthly FIDE ratings, games, tournaments and more. | 2,553 |
| 4 | 🇧🇷Follow Krikor Sevag MekhitarianTrack their monthly FIDE ratings, games, tournaments and more. | 2,544 |
| 5 | 🇧🇷Follow Andre DiamantTrack their monthly FIDE ratings, games, tournaments and more. | 2,501 |
| 6 | 🇧🇷Follow Renato R. QuintilianoTrack their monthly FIDE ratings, games, tournaments and more. | 2,491 |
| 7 | 🇧🇷Follow Yago De Moura SantiagoTrack their monthly FIDE ratings, games, tournaments and more. | 2,479 |
| 8 | 🇧🇷Follow Diego Rafael Di BerardinoTrack their monthly FIDE ratings, games, tournaments and more. | 2,465 |
| 9 | 🇧🇷Follow Nathan Felipe FilgueirasTrack their monthly FIDE ratings, games, tournaments and more. | 2,410 |
| 10 | 🇧🇷Follow Lucas Do Valle CardosoTrack their monthly FIDE ratings, games, tournaments and more. | 2,407 |
| ... | ||
| 3049 | 1,418 | |
Americas
| 1 | 🇺🇸Follow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 1 | 🇺🇸Follow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 3 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
| 4 | 🇺🇸Follow Hans Moke NiemannTrack their monthly FIDE ratings, games, tournaments and more. | 2,742 |
| 5 | 🇺🇸Follow Leinier Dominguez PerezTrack their monthly FIDE ratings, games, tournaments and more. | 2,732 |
| 6 | 🇺🇸Follow Levon AronianTrack their monthly FIDE ratings, games, tournaments and more. | 2,724 |
| 7 | 🇺🇸Follow Awonder LiangTrack their monthly FIDE ratings, games, tournaments and more. | 2,696 |
| 7 | 🇺🇸Follow Samuel SevianTrack their monthly FIDE ratings, games, tournaments and more. | 2,696 |
| 9 | 🇺🇸Follow Jeffery XiongTrack their monthly FIDE ratings, games, tournaments and more. | 2,656 |
| 10 | 🇺🇸Follow Ray RobsonTrack their monthly FIDE ratings, games, tournaments and more. | 2,653 |
| ... | ||
| 25095 | 1,418 | |
World
| 1 | 🇳🇴Follow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,841 |
| 2 | 🇺🇸Follow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 2 | 🇺🇸Follow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 4 | 🇺🇿Follow Nodirbek AbdusattorovTrack their monthly FIDE ratings, games, tournaments and more. | 2,777 |
| 4 | 🇺🇿Follow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more. | 2,777 |
| 6 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
| 7 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,764 |
| 8 | 🇮🇳Follow Erigaisi ArjunTrack their monthly FIDE ratings, games, tournaments and more. | 2,761 |
| 9 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
| 9 | 🇨🇳Follow Yi WeiTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
| ... | ||
| 213170 | 1,418 | |