Format
CJ
Cosman, Jackson Robert
🇨🇷FIDE 6570542· Male· Costa Rica· Born in 2012
Follow Jackson Robert CosmanTrack his monthly FIDE ratings, games, tournaments and more.
Jackson Robert Cosman, a 14-year-old player, is rated 1702 — his current career high. He is climbing fast, having gained +92 Elo over the past 12 months. 22 rated games in the past year (≈20/year long-term). Recent standard appearances include I Abierto Guanacasteco Santa Cruz 2026, Clasificatorio de Divisiones ADEA cuarta division 2026, and Campeonato Nacional Categorias Menores Pares 2026 U14 Absoluto. Also played 3 blitz events (including XLVI Metropolitano Torneo Internacional 2025 Blitz) recently.
At junior level, he reached #6 nationally in U14.
Current rating
1702
Standard
Rpd—·Blz1701
All-time high
1702
at best
Jun 2026 · age 14
Jun 2026 · age 14
Activity
19
games / yr avg. · ≈2/mo
22 past 12 mo · ≈2/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#109,261
#109,261 · players worldwide · of 218,279
Career timeline
7 entries2026
6th U14 player nationally
at age 14 · rated 1702
Jun 2026
Best 12-month gain (+92 Elo)
1610 → 1702
Jun 2026
All-time peak 1702
at age 14
Jun 2026
Crossed 1600
at age 14
Feb 2026
Crossed 1500
at age 14
Feb 2026
Crossed 1400
at age 14
Feb 2026
Standard rating history
Peak
FIDE title
Threshold
First rated
Activity & highlights
Top opponent
Evolution
—
Tournaments
4
30 games
Score
22/ 3073.3%
21W2D7L
Top 3 wins
Top 3 losses
1.[L]vsPablo Andres Rodriguez Solis1,511·Campeonato Nacional Categorias Menores Pares 2026 U14 Absoluto·R6·-25.6
2.[L]vsAnalia Andrea Badillo Guerrero1,560·XLVI Metropolitano Torneo Internacional 2025 U14·R8·-22.9
Last 12 months — tournaments
4 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Open Swiss | May 2026 | 5.5/4 | #1 | 2448 | +50.8 |
Swiss | May 2026 | 6/5 | #2 | 2412 | +41.6 |
Open Swiss | Feb 2026 | 4.5/4 | #12 | 2404 | +8.0 |
Open Swiss | Dec 2025 | 6/7 | #5 | 1584 | 0.0 |
Hot streak: 4 tournaments without losing Elo.
Rankings
/
Costa Rica
#136
out of 682 players
Americas
#13,095
in continent
World
#109,258
out of 400,000+
National ranking
Europe & World
Europe
World
Costa Rica
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| 8 | 🇨🇷Follow Alexis Murillo TsijliTrack their monthly FIDE ratings, games, tournaments and more. | 2,263 |
| 9 | 🇨🇷Follow David Alejandro Cabezas SolanoTrack their monthly FIDE ratings, games, tournaments and more. | 2,252 |
| 10 | 🇨🇷Follow Sebastian Angulo PerezTrack their monthly FIDE ratings, games, tournaments and more. | 2,182 |
| ... | ||
| 136 | 1,702 | |
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 |
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| 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 |
| ... | ||
| 13095 | 1,702 | |
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 |
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| 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 |
| ... | ||
| 109258 | 1,702 | |