Format
BJ
Basler, Jan Josef
🇨🇿FIDE 23718420· Male· Czech Republic· Born in 2008
Follow Jan Josef BaslerTrack his monthly FIDE ratings, games, tournaments and more.
Jan Josef Basler, a 18-year-old Czech player, is rated 1807 — just 28 short of his peak of 1835 (Aug 2025, age 17). He is on a steady climb with +42 Elo over the past 12 months. 20 rated games in the past year (≈21/year long-term). Recent standard appearances include SSOK - Krajsky prebor 2025-2026 r11, Jesenik Open 2025 - A, and CZECH OPEN 2025 - E - 4-member team tournament. Also played 1 rapid event (including Jesenik Open 2025 - rapid) recently.
At junior level, he reached #84, #93, #70, #57 and #27 nationally in U18, U16, U14, U12 and U10.
Current rating
1807
Standard
Rpd1785·Blz1720
All-time high
1835
−28 pts below
Aug 2025 · age 17
Aug 2025 · age 17
Activity
36
games / yr avg. · ≈3/mo
20 past 12 mo · ≈2/mo
classical only
Active
classical only
Active
Signature stat
#74,142
#74,142 · players worldwide · of 218,279
Career timeline
12 entries2026
Re-crossed 1800
at age 18
Jan 2026
2025
84th Czech U18 player
at age 17 · rated 1835
Aug 2025
Crossed 1800
at age 17
Aug 2025
All-time peak 1835
at age 17 · −28 from today
Aug 2025
Best 12-month gain (+294 Elo)
1462 → 1756
Feb 2025
2024
100 career games
at age 16
Sep 2024
Standard rating history
Peak
FIDE title
Threshold
First rated
COVID-19
FIDE recal.
Activity & highlights
Top opponent
Evolution
+42
1765 → 1807
Tournaments
6
23 games
Score
10.5/ 2345.7%
10W5D8L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
6 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Team | Apr 2026 | 0.5/1 | #43 | 1753 | -4.0 |
Team | Jan 2026 | 1/1 | #37 | 2402 | +9.6 |
Team | Dec 2025 | 1/1 | #27 | 2495 | +15.2 |
Team | Nov 2025 | 2/1 | #30 | 2438 | +12.8 |
Open Swiss | Aug 2025 | 2.5/9 | #79 | 1706 | -62.0 |
Team | Jul 2025 | 3.5/7 | #228 | 1971 | +70.4 |
Most-Played Opponents
vsRoman Gawlas
🇨🇿CZE·2076
+1 −7 =0
8 games·last met Aug 2025
View head-to-head →
vsJan Cimburek
🇨🇿CZE·2014
+0 −8 =0
8 games·last met Aug 2024
View head-to-head →
vsMykola Haidenko
🇨🇿CZE·1896
+1 −2 =4
7 games·last met May 2025
View head-to-head →
vsVojtech Vanicek
🇨🇿CZE·1727
+4 −2 =0
6 games·last met May 2025
View head-to-head →
vsDaniel Bures
🇨🇿CZE·1433
+2 −2 =1
5 games·last met Feb 2025
View head-to-head →
Rankings
/
Czech Republic
#3,048
out of 6,361 players
Europe
#53,749
in continent
World
#74,141
out of 400,000+
National ranking
Europe & World
Europe
World
Czech Republic
| 1 | 🇨🇿Follow David NavaraTrack their monthly FIDE ratings, games, tournaments and more. | 2,639 |
| 2 | 🇨🇿Follow Thai Dai Van NguyenTrack their monthly FIDE ratings, games, tournaments and more. | 2,633 |
| 3 | 🇨🇿Follow Vaclav FinekTrack their monthly FIDE ratings, games, tournaments and more. | 2,595 |
| 4 | 🇨🇿Follow Stepan ZilkaTrack their monthly FIDE ratings, games, tournaments and more. | 2,526 |
| 5 | 🇨🇿Follow Zbynek HracekTrack their monthly FIDE ratings, games, tournaments and more. | 2,525 |
| 6 | 🇨🇿Follow Tadeas KriebelTrack their monthly FIDE ratings, games, tournaments and more. | 2,508 |
| 7 | 🇨🇿Follow Jan KrejciTrack their monthly FIDE ratings, games, tournaments and more. | 2,503 |
| 8 | 🇨🇿Follow Jan BernasekTrack their monthly FIDE ratings, games, tournaments and more. | 2,501 |
| 9 | 🇨🇿Follow Vlastimil BabulaTrack their monthly FIDE ratings, games, tournaments and more. | 2,489 |
| 10 | 🇨🇿Follow Jan VykoukTrack their monthly FIDE ratings, games, tournaments and more. | 2,487 |
| ... | ||
| 3048 | 1,807 | |
Europe
| 1 | 🇳🇴Follow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more. | 2,841 |
| 2 | 🇩🇪Follow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more. | 2,767 |
| 3 | 🇳🇱Follow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more. | 2,764 |
| 4 | 🇫🇷Follow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more. | 2,744 |
| 5 | 🇵🇱Follow Jan-Krzysztof DudaTrack their monthly FIDE ratings, games, tournaments and more. | 2,739 |
| 6 | 🇭🇺Follow Richard RapportTrack their monthly FIDE ratings, games, tournaments and more. | 2,729 |
| 7 | 🇳🇱Follow Jorden Van ForeestTrack their monthly FIDE ratings, games, tournaments and more. | 2,728 |
| 8 | 🇫🇷Follow Maxime Vachier-LagraveTrack their monthly FIDE ratings, games, tournaments and more. | 2,721 |
| 9 | 🇦🇿Follow Shakhriyar MamedyarovTrack their monthly FIDE ratings, games, tournaments and more. | 2,717 |
| 10 | 🇹🇷Follow Yagiz Kaan ErdogmusTrack their monthly FIDE ratings, games, tournaments and more. | 2,713 |
| ... | ||
| 53749 | 1,807 | |
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 |
| ... | ||
| 74141 | 1,807 | |