Format
JM
Janco Mamani, Erik Oscar
🇧🇴FIDE 3353966· Male· Bolivia· Born in 2013
Follow Erik Oscar Janco MamaniTrack his monthly FIDE ratings, games, tournaments and more.
Erik Oscar Janco Mamani, a 13-year-old player, is rated 1413 — his current career high. He plays occasionally (6 games in the last 12 months). Recent appearance: Campeonato Promocional de Ajedrez Sub-1800, Llallagua 2025.
At junior level, he reached #69 nationally in U14.
Current rating
1413
Standard
Rpd—·Blz—
All-time high
1413
at best
Mar 2026 · age 13
Mar 2026 · age 13
Activity
14
games / yr avg. · ≈1/mo
6 past 12 mo · ≈1/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#213,571
#213,571 · players worldwide · of 216,808
Career timeline
5 entries2026
All-time peak 1413
at age 13
Mar 2026
69th U14 player nationally
at age 13 · rated 1412
Jan 2026
Crossed 1400
at age 13
Jan 2026
Crossed 1200
at age 13
Jan 2026
First FIDE rating
1412 · at age 13
Jan 2026
Standard rating history
Last 12 months — activity & highlights
Evolution
+1
1412 → 1413
Tournaments
1
6 games
Score
2/ 633.3%
2W0D4L
Top wins
No noteworthy wins (no Elo gained on any game).
Top 3 losses
1.[L]vsAndy Cristofer Ortiz Marcelo1,444·Campeonato Promocional de Ajedrez Sub-1800, Llallagua 2025·R6·-18.2
2.[L]vsCristian Alvaro Condori Cruz1,513·Campeonato Promocional de Ajedrez Sub-1800, Llallagua 2025·R1·-14.3
Last 12 months — tournaments
1 event| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Open Swiss | Nov 2025 | 2/3 | #42 | 740 | 0.0 |
Rankings
/
Bolivia
#503
out of 703 players
Americas
#25,154
in continent
World
#213,151
out of 400,000+
National ranking
Europe & World
Europe
World
Bolivia
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| 2 | 🇧🇴Follow Osvaldo ZambranaTrack their monthly FIDE ratings, games, tournaments and more. | 2,355 |
| 3 | 🇧🇴Follow Daniel PintoTrack their monthly FIDE ratings, games, tournaments and more. | 2,339 |
| 4 | 🇧🇴Follow Jose Daniel GemyTrack their monthly FIDE ratings, games, tournaments and more. | 2,337 |
| 5 | 🇧🇴Follow Luis Miguel AguilarTrack their monthly FIDE ratings, games, tournaments and more. | 2,220 |
| 6 | 🇧🇴Follow Maveric Mayta AizaTrack their monthly FIDE ratings, games, tournaments and more. | 2,217 |
| 7 | 🇧🇴Follow Jonathan I. Montevilla CahuasaTrack their monthly FIDE ratings, games, tournaments and more. | 2,189 |
| 8 | 🇧🇴Follow Adonay DelgadilloTrack their monthly FIDE ratings, games, tournaments and more. | 2,160 |
| 9 | 🇧🇴Follow Guy BautistaTrack their monthly FIDE ratings, games, tournaments and more. | 2,154 |
| 10 | 🇧🇴Follow Fernando BolanosTrack their monthly FIDE ratings, games, tournaments and more. | 2,148 |
| ... | ||
| 503 | 1,413 | |
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 |
| 7 | 🇺🇸Follow Awonder LiangTrack their monthly FIDE ratings, games, tournaments and more. | 2,718 |
| 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 |
| ... | ||
| 25154 | 1,413 | |
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 |
| 5 | 🇺🇿Follow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more. | 2,776 |
| 6 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
| 7 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,759 |
| 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 |
| ... | ||
| 213151 | 1,413 | |