Format
Galaviz Medina, Sion Radamantys
GM🇲🇽FIDE 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 492nd worldwide. He has held steady between 2500 and 2525 for 9 months. 89 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 22 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
Oct 2025 · age 20
Activity
87
games / yr avg. · ≈7/mo
80 past 12 mo · ≈7/mo
classical only
Very active
classical only
Very active
Signature stat
#3
#3 · Mexican players · of 2,262
National top 3 since Sep 2024
National top 3 since Sep 2024
Career timeline
26 entries2026
22 months in national top 3 (ongoing)
longest streak 22 months · since Sep 2024
Jun 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
Peak
FIDE title
Threshold
First rated
Inactive period
COVID-19
Activity & highlights
Top opponent
LXXI Campeonato Nacional e Internacional Abierto Mexicano de Ajedrez. Internacional · Mar 2026 · +1.9 Elo
Evolution
+19
2494 → 2513
Tournaments
9
82 games
Score
53/ 8264.6%
43W33D6L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
8 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Open Swiss | Mar 2026 | 6.5/9 | #7 | 2473 | -0.9 |
Knockout | Nov 2025 | 1/2 | R128 | 2575 | +1.8 |
Open Swiss | Oct 2025 | 6.5/9 | #5 | 2494 | +2.5 |
Open Swiss | Sep 2025 | 6.5/9 | #6 | 2387 | -5.6 |
Open Swiss | Sep 2025 | 7/9 | #2 | 2615 | +15.6 |
Round-Robin | Aug 2025 | 7/9 | #1 | 2502 | +2.2 |
Open Swiss | Aug 2025 | 6.5/9 | #9 | 2469 | -1.0 |
Open Swiss | Aug 2025 | 6.5/9 | #5 | 2466 | +0.6 |
Most-Played Opponents
vsJuan Carlos Obregon RiveroGM
🇲🇽MEX·2446
+6 −5 =6
17 games·last met Jun 2026
View head-to-head →
vsAtlas Adomaytis Galaviz MedinaCM
🇲🇽MEX·2276
+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 →
vsMiguel Angel Montes OrozcoFM
🇲🇽MEX·2295
+9 −0 =2
11 games·last met Jun 2026
View head-to-head →
vsCarlos Sandoval MercadoIM
🇲🇽MEX·2422
+6 −2 =3
11 games·last met Apr 2026
View head-to-head →
Rankings
/
Mexico
#3
out of 3,019 players
Americas
#59
in continent
World
#492
out of 400,000+
National ranking
Europe & World
Europe
World
Mexico
| 1 | 🇲🇽Follow Jose Eduardo Martinez AlcantaraTrack their monthly FIDE ratings, games, tournaments and more. | 2,650 |
| 2 | 🇲🇽Follow Luis Ernesto Quesada PerezTrack their monthly FIDE ratings, games, tournaments and more. | 2,536 |
| 3 | 2,513 | |
| 4 | 🇲🇽Follow Juan Carlos Gonzalez ZamoraTrack their monthly FIDE ratings, games, tournaments and more. | 2,466 |
| 5 | 🇲🇽Follow Juan Carlos Obregon RiveroTrack their monthly FIDE ratings, games, tournaments and more. | 2,446 |
| 6 | 🇲🇽Follow Kevin Joel Cori QuispeTrack their monthly FIDE ratings, games, tournaments and more. | 2,440 |
| 7 | 🇲🇽Follow Carlos Sandoval MercadoTrack their monthly FIDE ratings, games, tournaments and more. | 2,422 |
| 8 | 🇲🇽Follow Isaac Antonio Garcia GuerreroTrack their monthly FIDE ratings, games, tournaments and more. | 2,400 |
| 9 | 🇲🇽Follow Gilberto Hernandez GuerreroTrack their monthly FIDE ratings, games, tournaments and more. | 2,398 |
| 10 | 🇲🇽Follow Roberto Calderin GonzalezTrack their monthly FIDE ratings, games, tournaments and more. | 2,380 |
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 |
| ... | ||
| 59 | 2,513 | |
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 |
| ... | ||
| 492 | 2,513 | |