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Kiess Alfonso, Erwin S.

🇵🇷

FIDEFIDE 3106780· Male· Puerto Rico· Born in 2005

Follow Erwin S. Kiess AlfonsoTrack his monthly FIDE ratings, games, tournaments and more.

Erwin S. Kiess Alfonso, a 21-year-old player, is rated 1565. He has fluctuated between 1554 and 1627 over the past 2 years. 18 rated games in the past year (≈11/year long-term). Recent standard appearances include San Juan Chess Club Invitational Nacional, Jueves Clasico, and 1ra Edicion del Clasico William Miranda Marin Memoriam. Also played 1 blitz event (including 4th PRCA Amateur Blitz Chess) recently. He took a 59-month break between Sep 2018 and Sep 2023 (COVID-19 included). His peak of 1632 was reached at age 19 (Mar 2024); he also reached #78 nationally in Mar 2018.

At junior level, he reached #5, #4, #3 and #1 nationally in U20, U18, U14 and U12.

Current rating

1565

Standard

Rpd1649·Blz1691

All-time high

1632

−67 pts below
Mar 2024 · age 19

Activity

23

games / yr avg. · ≈2/mo

18 past 12 mo · ≈2/mo
classical only
Moderately active

Signature stat

#159,653

#159,653 · players worldwide · of 216,808

Career timeline

18 entries
2026
100 career games
at age 21
Jan 2026
2025
Re-crossed 1600
at age 20
Dec 2025
2024
Best 12-month gain (+290 Elo)
1342 → 1632
Mar 2024
Crossed 1600
at age 19
Mar 2024
Crossed 1500
at age 19
Mar 2024
Re-crossed 1400
at age 19
Mar 2024

Standard rating history

Last 12 months — activity & highlights

Top opponent
vs Doan Santiago Izquierdo 1,890
Jueves Clasico · Oct 2025 · +6.8 Elo
Evolution
-18
1583 → 1565
Tournaments
3
19 games
Score
4.5/ 1923.7%
3W3D13L

Last 12 months — tournaments

3 events
EventDateScoreRankPerfΔ Elo
San Juan Chess Club Invitational Nacional
Swiss
Nov 20250/7#10965-35.2
Jueves Clasico
Swiss
Oct 20252.5/4#91895+19.4
1ra Edicion del Clasico William Miranda Marin Memoriam
Swiss
Sep 20252/3#251823-1.6
Worst Elo result: San Juan Chess Club Invitational Nacional (-35.2 Elo, finished #10).

Rankings

/
Puerto Rico
#152
out of 222 players
Americas
#19,650
in continent
World
#159,635
out of 400,000+

National ranking

Europe & World

Europe
World
Puerto Rico
1
🇵🇷Velasco, SantiagoFollow Santiago VelascoTrack their monthly FIDE ratings, games, tournaments and more.
2,278
2
🇵🇷Almedina Ortiz, Edgardo J.Follow Edgardo J. Almedina OrtizTrack their monthly FIDE ratings, games, tournaments and more.
2,211
3
🇵🇷Gerena Rivas, EliamFollow Eliam Gerena RivasTrack their monthly FIDE ratings, games, tournaments and more.
2,150
4
🇵🇷Rojas Hernandez, Felix LidierFollow Felix Lidier Rojas HernandezTrack their monthly FIDE ratings, games, tournaments and more.
2,143
5
🇵🇷Toro Cruz, Sebastian J.Follow Sebastian J. Toro CruzTrack their monthly FIDE ratings, games, tournaments and more.
2,134
6
🇵🇷Nieves Kamalakanta, IvanFollow Ivan Nieves KamalakantaTrack their monthly FIDE ratings, games, tournaments and more.
2,128
7
🇵🇷Rodriguez Santiago, JaimeFollow Jaime Rodriguez SantiagoTrack their monthly FIDE ratings, games, tournaments and more.
2,119
8
🇵🇷Boggiano Pereira, Miguel A.Follow Miguel A. Boggiano PereiraTrack their monthly FIDE ratings, games, tournaments and more.
2,093
9
🇵🇷Fellman, MikeFollow Mike FellmanTrack their monthly FIDE ratings, games, tournaments and more.
2,078
10
🇵🇷Lugo Roldan, Jean P.Follow Jean P. Lugo RoldanTrack their monthly FIDE ratings, games, tournaments and more.
2,064
...
152🇵🇷Kiess Alfonso, Erwin S.1,565
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
...
19650🇵🇷Kiess Alfonso, Erwin S.1,565
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
...
159635🇵🇷Kiess Alfonso, Erwin S.1,565