Format
TE
Tsuboi, Edson Kenji
IM🇧🇷FIDE 2100274· Male· Brazil· Born in 1958
Follow Edson Kenji TsuboiTrack his monthly FIDE ratings, games, tournaments and more.
Edson Kenji Tsuboi, a 68-year-old Brazilian International Master, is rated 2162 and sitting in the top 3% of Brazilian players, and in the top 5% worldwide. He has slipped back 37 Elo over the past 12 months. 27 rated games in the past year (≈29/year long-term). Recent standard appearances include III Sampa Chess Open 2026 STD, Brazil Chess Series - Sao Paulo 2025, and 9o Torneio Internacional de Xadrez SESC Caioba Classico. Also played 5 rapid (including 9o Torneio Internacional de Xadrez SESC Caioba Rapido) and 3 blitz events (including 9o Torneio Internacional de Xadrez SESC Caioba BLZ) recently. He took a 40-month break between Mar 2020 and Aug 2023 (COVID-19 included). His peak of 2423 was reached at age 51 (Sep 2009); he also reached Brazilian #14 in Jul 2004.
Awarded IM in 2009 (age 51) and FM in 2001 (age 43).
Current rating
2162
Standard
Rpd2173·Blz2135
All-time high
2423
−261 pts below
Sep 2009 · age 51
Sep 2009 · age 51
Activity
23
games / yr avg. · ≈2/mo
27 past 12 mo · ≈2/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
Top 3%
#97 · Brazilian players · of 3,099
Career timeline
21 entries2024
4th Brazilian 65-70 player
at age 66 · rated 2200
Feb 2024
2020
Inactive for 40 months
paused at 2212 → returned at 2206
Mar 2020
2019
6th Brazilian 60-65 player
at age 61 · rated 2234
Aug 2019
2015
4th Brazilian 55-60 player
at age 57 · rated 2274
Oct 2015
500 career games
at age 57
Mar 2015
2009
68th 50-55 player worldwide
at age 51 · rated 2423
Sep 2009
Standard rating history
Activity & highlights
Top opponent
Evolution
-37
2199 → 2162
Tournaments
3
27 games
Score
16.5/ 2761.1%
12W9D6L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
3 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Open Swiss | Jan 2026 | 5.5/9 | #45 | 2048 | -14.1 |
Open Swiss | Dec 2025 | 5.5/9 | #6 | 2054 | -9.5 |
Open Swiss | Jun 2025 | 5.5/9 | #42 | 2048 | -12.6 |
Most-Played Opponents
vsEveraldo MatsuuraGM
🇧🇷BRA·2341
+0 −3 =8
11 games·last met Nov 2019
View head-to-head →
vsCarlos Alejandro MartinezIM
🇧🇷BRA·2503
+1 −3 =5
9 games·last met Mar 2026
View head-to-head →
vsRenato R. QuintilianoGM
🇧🇷BRA·2491
+1 −5 =3
9 games·last met Aug 2019
View head-to-head →
vsKaua Marques SilvaFM
🇧🇷BRA·2343
+4 −1 =3
8 games·last met Dec 2025
View head-to-head →
vsMarcus Vinicius Moreira SantosIM
🇧🇷BRA·2291
+1 −1 =6
8 games·last met Feb 2025
View head-to-head →
Rankings
/
Brazil
#97
out of 6,387 players
Americas
#1,113
in continent
World
#10,418
out of 400,000+
National ranking
Europe & World
Europe
World
Brazil
| 1 | 🇧🇷Follow Rafael LeitaoTrack their monthly FIDE ratings, games, tournaments and more. | 2,588 |
| 2 | 🇧🇷Follow Luis Paulo SupiTrack their monthly FIDE ratings, games, tournaments and more. | 2,581 |
| 3 | 🇧🇷Follow Alexandr FierTrack their monthly FIDE ratings, games, tournaments and more. | 2,578 |
| 4 | 🇧🇷Follow Giovanni VescoviTrack their monthly FIDE ratings, games, tournaments and more. | 2,549 |
| 5 | 🇧🇷Follow Krikor Sevag MekhitarianTrack their monthly FIDE ratings, games, tournaments and more. | 2,544 |
| 6 | 🇧🇷Follow Andre DiamantTrack their monthly FIDE ratings, games, tournaments and more. | 2,499 |
| 7 | 🇧🇷Follow Renato R. QuintilianoTrack their monthly FIDE ratings, games, tournaments and more. | 2,491 |
| 8 | 🇧🇷Follow Yago De Moura SantiagoTrack their monthly FIDE ratings, games, tournaments and more. | 2,479 |
| 9 | 🇧🇷Follow Diego Rafael Di BerardinoTrack their monthly FIDE ratings, games, tournaments and more. | 2,465 |
| 10 | 🇧🇷Follow Nathan Felipe FilgueirasTrack their monthly FIDE ratings, games, tournaments and more. | 2,410 |
| ... | ||
| 97 | 2,162 | |
Americas
| 1 | 🇺🇸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. | 2,788 |
| 3 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,754 |
| 4 | 🇺🇸Follow Leinier Dominguez PerezTrack their monthly FIDE ratings, games, tournaments and more. | 2,732 |
| 5 | 🇺🇸Follow Hans Moke NiemannTrack their monthly FIDE ratings, games, tournaments and more. | 2,728 |
| 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. | 2,718 |
| 8 | 🇺🇸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 |
| ... | ||
| 1113 | 2,162 | |
World
| 1 | 🇳🇴Follow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,840 |
| 2 | 🇺🇸Follow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more. | 2,792 |
| 3 | 🇺🇸Follow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more. | 2,788 |
| 4 | 🇺🇿Follow Nodirbek AbdusattorovTrack their monthly FIDE ratings, games, tournaments and more. | 2,780 |
| 5 | 🇺🇿Follow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more. | 2,776 |
| 6 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
| 7 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,759 |
| 7 | 🇫🇷Follow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more. | 2,759 |
| 9 | 🇺🇸Follow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more. | 2,754 |
| 10 | 🇨🇳Follow Yi WeiTrack their monthly FIDE ratings, games, tournaments and more. | 2,753 |
| ... | ||
| 10418 | 2,162 | |