Format
YM
Yassuda,Mariana Mayum Shiguematsu
🇧🇷FIDE 22759549· Female· Brazil· Born in 2010
Follow Mariana Mayum Shiguematsu YassudaTrack her monthly FIDE ratings, games, tournaments and more.
Mariana Mayum Shiguematsu Yassuda, a 16-year-old Brazilian player, is rated 1690. She is progressing steadily with +30 Elo over the past 12 months. 27 rated games in the past year (≈21/year long-term). Recent standard appearances include Brazil Chess Series - Floripa 2026, XIV Pan-American School Chess Championship 2025 STD U15 Girls, and 9o Torneio Internacional de Xadrez SESC Caioba Classico. Also played 3 rapid (including Torneio Open Capablanca 40 Anos De Xadrez Rapido 2025) and 5 blitz events (including Brazil Chess Series - Floripa 2026 - Super Blitz) recently. Her peak of 1766 was reached at age 15 (Aug 2025).
At junior level, she reached #76, #33 and #3 nationally in U16, U14 and U12.
Current rating
1690
Standard
Rpd1757·Blz1735
All-time high
1766
−76 pts below
Aug 2025 · age 15
Aug 2025 · age 15
Activity
22
games / yr avg. · ≈2/mo
27 past 12 mo · ≈2/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#113,622
#113,622 · players worldwide · of 218,279
Career timeline
10 entries2025
76th Brazilian U16 player
at age 15 · rated 1766
Aug 2025
All-time peak 1766
at age 15 · −76 from today
Aug 2025
2024
33rd Brazilian U14 player
at age 14 · rated 1738
Jun 2024
Best 12-month gain (+359 Elo)
1379 → 1738
Jun 2024
Crossed 1600
at age 14
Mar 2024
Crossed 1500
at age 14
Mar 2024
Standard rating history
Peak
FIDE title
Threshold
First rated
FIDE recal.
Activity & highlights
Top opponent
Evolution
+31
1659 → 1690
Tournaments
4
34 games
Score
16/ 3447.1%
10W12D12L
Top 3 wins
2.[W]vsFrayson Nycolas Rodrigues Ruiz1,819·9o Torneio Internacional de Xadrez SESC Caioba Classico·R3·+23.0
Top 3 losses
1.[L]vsEduarda Frassetto1,568·XIV Pan-American School Chess Championship 2025 STD U15 Girls·R1·-27.5
2.[L]vsEsther Zilli Ramazzotte1,811·XIV Pan-American School Chess Championship 2025 STD U15 Girls·R5·-14.1
Last 12 months — tournaments
4 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Open Swiss | May 2026 | 3/2 | #34 | 2532 | -18.4 |
Open Swiss | Jan 2026 | 4/7 | #421 | 1953 | +3.2 |
Swiss | Aug 2025 | 4.5/8 | #10 | 1703 | -62.0 |
Open Swiss | Jun 2025 | 4.5/9 | #78 | 1918 | +107.2 |
Worst Elo result: XIV Pan-American School Chess Championship 2025 STD U15 Girls (-62.0 Elo, finished #10).
Most-Played Opponents
vsKariny Kaori Shikasho
🇧🇷BRA·1617
+8 −4 =0
12 games·last met Nov 2024
View head-to-head →
vsFernanda Cabreira Ramos
🇧🇷BRA·1663
+4 −1 =4
9 games·last met Aug 2025
View head-to-head →
vsMariana Nara Santana Da Costa
🇧🇷BRA·1862
+2 −4 =1
7 games·last met Sep 2025
View head-to-head →
vsEdson Hidenobu Oshiro
🇧🇷BRA·1825
+0 −6 =0
6 games·last met Feb 2026
View head-to-head →
vsFelipe Borges Cristino
🇧🇷BRA·1975
+1 −2 =2
5 games·last met Feb 2026
View head-to-head →
Rankings
/
Brazil
#1,818
out of 6,523 players
Americas
#13,701
in continent
World
#113,618
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. | 2,553 |
| 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 |
| ... | ||
| 1818 | 1,690 | |
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 |
| ... | ||
| 13701 | 1,690 | |
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 |
| ... | ||
| 113618 | 1,690 | |