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Galaviz Medina, Sion Radamantys

Galaviz Medina, Sion Radamantys

GM🇲🇽

FIDEFIDE 5123119· Male· Mexico· Born in 2005

Follow Sion Radamantys Galaviz MedinaTrack his monthly FIDE ratings, games, tournaments and more.

Sion Radamantys Galaviz Medina, a 21-year-old Mexican Grandmaster, is rated 2513 — just 2 short of his peak of 2515 (Oct 2025, age 20) and ranked 3rd among Mexican players, and in the top 1% worldwide. He has held steady between 2500 and 2525 for 8 months. 80 rated games in the past year (≈53/year long-term). Recent standard appearances include LXXI Campeonato Nacional e Internacional Abierto Mexicano de Ajedrez. Internacional, FIDE World Cup 2025, and I Campeonato Nacional e Internacional de Ajedrez Monterrey 2025 - Primera. Also played 9 rapid (including FIDE World Rapid Championship 2025) and 5 blitz events (including FIDE World Blitz Championship 2025) recently. He reached World #488 in Oct 2025 and has been in Mexican top 3 for 21 months and counting.

Awarded GM in 2025 (age 20), IM in 2022 (age 17), FM in 2019 (age 14), and CM in 2014 (age 9). At junior level, he reached World #23 in U20, World #33 in U18, World #33 in U16, World #43 in U14, World #19 in U12 and World #14 in U10.

Current rating

2513

Standard

Rpd2437·Blz2438

All-time high

2515

−2 pts below
Oct 2025 · age 20

Activity

93

games / yr avg. · ≈8/mo

80 past 12 mo · ≈7/mo
classical only
Very active

Signature stat

#3

#3 · Mexican players · of 2,269
National top 3 since Sep 2024

Career timeline

26 entries
2026
21 months in national top 3 (ongoing)
longest streak 21 months · since Sep 2024
May 2026
2025
GM title awardedGM
at age 20 · 2025 4th FIDE Council
Dec 2025
Peak World rank: #488
at age 20 · rated 2515
Oct 2025
23rd U20 player worldwide
at age 20 · rated 2515
Oct 2025
Re-crossed 2500
at age 20
Oct 2025
All-time peak 2515
at age 20 · −2 from today
Oct 2025

Standard rating history

Activity & highlights

Best result
40th Open Basque Country Sestao 2025
perf 2615 (+100) · 7/9 · #2
Top opponent
vs Jose Eduardo Martinez AlcantaraGM 2,656
LXXI Campeonato Nacional e Internacional Abierto Mexicano de Ajedrez. Internacional · Mar 2026 · +1.9 Elo
Evolution
+10
2503 → 2513
Tournaments
10
80 games
Score
58/ 8072.5%
41W34D5L

Last 12 months — tournaments

8 events
EventDateScoreRankPerfΔ Elo
LXXI Campeonato Nacional e Internacional Abierto Mexicano de Ajedrez. Internacional
Open Swiss
Mar 20266.5/9#72473-0.9
FIDE World Cup 2025
Knockout
Nov 20251/2R1282575+1.8
I Campeonato Nacional e Internacional de Ajedrez Monterrey 2025 - Primera
Open Swiss
Oct 20256.5/9#52494+2.5
Campeonato Nacional Absoluto de Ajedrez Zacatecas 2025
Open Swiss
Sep 20256.5/9#62387-5.6
40th Open Basque Country Sestao 2025
Open Swiss
Sep 20257/9#22615+15.6
III Maxistral Xiria Carballo
Round-Robin
Aug 20257/9#12502+2.2
Maia Chess Open 2025 - Maia Masters
Open Swiss
Aug 20256.5/9#92469-1.0
TERCERA EDICION DEL CAMPEONATO NACIONAL E INTERNACIONAL DE AJEDREZ "AGUASCALIENTES 2025"
Open Swiss
Aug 20256.5/9#52466+0.6

Most-Played Opponents

vsJuan Carlos Obregon RiveroGM
🇲🇽MEX·2446
+6 −5 =5
16 games·last met Oct 2025
View head-to-head →
vsAtlas Adomaytis Galaviz MedinaCM
🇲🇽MEX·2279
+6 −2 =8
16 games·last met May 2024
View head-to-head →
vsJuan Carlos Gonzalez ZamoraGM
🇲🇽MEX·2466
+1 −6 =5
12 games·last met Aug 2025
View head-to-head →
vsCarlos Sandoval MercadoIM
🇲🇽MEX·2422
+6 −2 =3
11 games·last met Apr 2026
View head-to-head →
vsMiguel Tadeo Palma VillanuevaFM
🇲🇽MEX·2290
+8 −1 =1
10 games·last met Apr 2026
View head-to-head →

Rankings

/
Mexico
#3
out of 3,007 players
Americas
#59
in continent
World
#504
out of 400,000+

National ranking

Europe & World

Europe
World
Mexico
1
🇲🇽Martinez Alcantara, Jose EduardoFollow Jose Eduardo Martinez AlcantaraTrack their monthly FIDE ratings, games, tournaments and more.
2,650
2
🇲🇽Quesada Perez, Luis ErnestoFollow Luis Ernesto Quesada PerezTrack their monthly FIDE ratings, games, tournaments and more.
2,536
32,513
4
🇲🇽Gonzalez Zamora, Juan CarlosFollow Juan Carlos Gonzalez ZamoraTrack their monthly FIDE ratings, games, tournaments and more.
2,466
5
🇲🇽Obregon Rivero, Juan CarlosFollow Juan Carlos Obregon RiveroTrack their monthly FIDE ratings, games, tournaments and more.
2,446
6
🇲🇽Cori Quispe, Kevin JoelFollow Kevin Joel Cori QuispeTrack their monthly FIDE ratings, games, tournaments and more.
2,440
7
🇲🇽Sandoval Mercado, CarlosFollow Carlos Sandoval MercadoTrack their monthly FIDE ratings, games, tournaments and more.
2,422
8
🇲🇽Garcia Guerrero, Isaac AntonioFollow Isaac Antonio Garcia GuerreroTrack their monthly FIDE ratings, games, tournaments and more.
2,400
9
🇲🇽Hernandez Guerrero, GilbertoFollow Gilberto Hernandez GuerreroTrack their monthly FIDE ratings, games, tournaments and more.
2,398
10
🇲🇽Calderin Gonzalez, RobertoFollow Roberto Calderin GonzalezTrack their monthly FIDE ratings, games, tournaments and more.
2,380
Americas
1
🇺🇸Nakamura, HikaruFollow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more.
2,792
2
🇺🇸Caruana, FabianoFollow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more.
2,788
3
🇺🇸So, WesleyFollow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more.
2,754
4
🇺🇸Dominguez Perez, LeinierFollow Leinier Dominguez PerezTrack their monthly FIDE ratings, games, tournaments and more.
2,732
5
🇺🇸Niemann, Hans MokeFollow Hans Moke NiemannTrack their monthly FIDE ratings, games, tournaments and more.
2,728
6
🇺🇸Aronian, LevonFollow Levon AronianTrack their monthly FIDE ratings, games, tournaments and more.
2,724
7
🇺🇸Liang, AwonderFollow Awonder LiangTrack their monthly FIDE ratings, games, tournaments and more.
2,718
8
🇺🇸Sevian, SamuelFollow Samuel SevianTrack their monthly FIDE ratings, games, tournaments and more.
2,696
9
🇺🇸Xiong, JefferyFollow Jeffery XiongTrack their monthly FIDE ratings, games, tournaments and more.
2,656
10
🇺🇸Robson, RayFollow Ray RobsonTrack their monthly FIDE ratings, games, tournaments and more.
2,653
...
59🇲🇽Galaviz Medina, Sion Radamantys2,513
World
1
🇳🇴Carlsen, MagnusFollow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more.
2,840
2
🇺🇸Nakamura, HikaruFollow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more.
2,792
3
🇺🇸Caruana, FabianoFollow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more.
2,788
4
🇺🇿Abdusattorov, NodirbekFollow Nodirbek AbdusattorovTrack their monthly FIDE ratings, games, tournaments and more.
2,780
5
🇺🇿Sindarov, JavokhirFollow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more.
2,776
6
🇳🇱Giri, AnishFollow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more.
2,767
7
🇩🇪Keymer, VincentFollow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more.
2,759
7
🇫🇷Firouzja, AlirezaFollow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more.
2,759
9
🇺🇸So, WesleyFollow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more.
2,754
10
🇨🇳Wei, YiFollow Yi WeiTrack their monthly FIDE ratings, games, tournaments and more.
2,753
...
504🇲🇽Galaviz Medina, Sion Radamantys2,513