Format
TM
Tomiello, Mateus Costamilan
FM🇧🇷FIDE 22701958· Male· Brazil· Born in 2003
Follow Mateus Costamilan TomielloTrack his monthly FIDE ratings, games, tournaments and more.
Mateus Costamilan Tomiello, a 23-year-old Brazilian FIDE Master, is rated 2218 — just 7 short of his peak of 2225 (Feb 2026, age 23) and sitting in the top 2% of Brazilian players, and in the top 3% worldwide. He has held steady between 2200 and 2250 for 11 months. 38 rated games in the past year (≈33/year long-term). Recent standard appearances include II Timbo Chess Festival Under 2400 STD, Brazil Chess Series - Floripa 2026, and 91o Campeonato Brasileiro Absoluto 2025. Also played 2 rapid (including 2a Edicao Gambito Vilao Rapido) and 4 blitz events (including Brazil Chess Series - Floripa 2026 - Super Blitz) recently. He reached Brazilian #49 in Apr 2026.
Awarded FM in 2024 (age 21). At junior level, he reached #7, #6, #6 and #6 nationally in U20, U18, U16 and U14.
Current rating
2218
Standard
Rpd2078·Blz2179
All-time high
2225
−7 pts below
Feb 2026 · age 23
Feb 2026 · age 23
Activity
49
games / yr avg. · ≈4/mo
38 past 12 mo · ≈3/mo
classical only
Active
classical only
Active
Signature stat
Top 2%
#51 · Brazilian players · of 3,099
Career timeline
17 entries2026
Peak Brazilian rank: #49
at age 23 · rated 2218
Apr 2026
All-time peak 2225
at age 23 · −7 from today
Feb 2026
2025
Crossed 2200
at age 22
Jul 2025
2024
FM title awardedFM
at age 21
Jan 2024
2023
7th Brazilian U20 player
at age 20 · rated 2157
Dec 2023
Re-crossed 2100
at age 20
Aug 2023
Standard rating history
Activity & highlights
Top opponent
Evolution
+19
2199 → 2218
Tournaments
3
27 games
Score
18.5/ 2768.5%
16W5D6L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
3 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Open Swiss | Feb 2026 | 5/6 | #5 | 2078 | -7.4 |
Open Swiss | Jan 2026 | 6.5/10 | #67 | 2215 | +6.0 |
Open Swiss | Dec 2025 | 7/11 | #22 | 2202 | +6.4 |
Most-Played Opponents
vsLucas Costamilan TomielloFM
🇧🇷BRA·2320
+1 −1 =10
12 games·last met Feb 2026
View head-to-head →
vsCharles GaucheFM
🇧🇷BRA·2073
+2 −4 =0
6 games·last met Feb 2026
View head-to-head →
vsNathan Felipe FilgueirasIM
🇧🇷BRA·2410
+0 −6 =0
6 games·last met Dec 2025
View head-to-head →
vsLucas Fonseca PiccoliFM
🇧🇷BRA·2279
+2 −4 =0
6 games·last met Nov 2023
View head-to-head →
vsNatan Trott
🇧🇷BRA·1914
+3 −3 =0
6 games·last met Jun 2017
View head-to-head →
Rankings
/
Brazil
#51
out of 6,387 players
Americas
#785
in continent
World
#7,239
out of 400,000+
National ranking
Europe & World
Europe
World
Brazil
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| 8 | 🇧🇷Follow Yago De Moura SantiagoTrack their monthly FIDE ratings, games, tournaments and more. | 2,479 |
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| 10 | 🇧🇷Follow Nathan Felipe FilgueirasTrack their monthly FIDE ratings, games, tournaments and more. | 2,410 |
| ... | ||
| 51 | 2,218 | |
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 |
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| 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 |
| ... | ||
| 785 | 2,218 | |
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 |
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| 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 |
| ... | ||
| 7239 | 2,218 | |