Format
BJ
Baum, Jonasz
IM🇵🇱FIDE 1195360· Male· Poland· Born in 2004
Follow Jonasz BaumTrack his monthly FIDE ratings, games, tournaments and more.
Jonasz Baum, a 22-year-old Polish International Master, is rated 2449 and ranked 44th among Polish players, and in the top 1% worldwide. He has slipped back 30 Elo over the past 12 months. 57 rated games in the past year (≈82/year long-term). Recent standard appearances include 1. Schachbundesliga 2025-2026 April 2026, 44. Memorial Ludwika Zamenhofa 2025 - open A, and 40th European Club Cup (open). Also played 9 rapid (including Zamosc Chess Cup 2025) and 4 blitz events (including Warsaw Chess Festival - Jan Macieja Memorial - group A) recently. His peak of 2487 was reached at age 21 (Apr 2025, Polish #30 at the time).
Awarded IM in 2020 (age 16) and FM in 2018 (age 14). At junior level, he reached World #41 in U20, World #50 in U18, World #35 in U16, World #36 in U14, World #61 in U12 and World #94 in U10.
Current rating
2449
Standard
Rpd2375·Blz2388
All-time high
2487
−38 pts below
Apr 2025 · age 21
Apr 2025 · age 21
Activity
81
games / yr avg. · ≈7/mo
57 past 12 mo · ≈5/mo
classical only
Very active
classical only
Very active
Signature stat
#44
#44 · Polish players · of 6,282
Career timeline
25 entries2025
Peak Polish rank: #30
at age 21 · rated 2479
May 2025
All-time peak 2487
at age 21 · −38 from today
Apr 2025
1,000 career games
at age 21
Feb 2025
2024
41st U20 player worldwide
at age 20 · rated 2465
Nov 2024
2022
50th U18 player worldwide
at age 18 · rated 2420
Dec 2022
Crossed 2400
at age 18
May 2022
Standard rating history
Activity & highlights
Top opponent
Evolution
-30
2479 → 2449
Tournaments
10
48 games
Score
25/ 4852.1%
14W22D12L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
9 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Team | Apr 2026 | 1/2 | #113 | 2507 | +1.7 |
Team | Mar 2026 | 0/1 | #169 | 1783 | -3.2 |
Team | Feb 2026 | 1/3 | #93 | 2478 | +0.9 |
Team | Jan 2026 | 2/2 | #7 | 3318 | +11.8 |
Open Swiss | Dec 2025 | 5.5/9 | #11 | 2321 | -11.9 |
Team | Dec 2025 | 1/2 | #64 | 2550 | +2.9 |
Team | Oct 2025 | 3.5/7 | #284 | 2447 | +0.4 |
Open Swiss | Jul 2025 | 3/6 | #165 | 2206 | -19.6 |
Team | Jul 2025 | 5/8 | #48 | 2312 | -10.1 |
Worst Elo result: 34th OPEN CHESS TOURNAMENT OF KAVALA VASILIS THEODORIDIS A (-19.6 Elo, finished #165).
Most-Played Opponents
vsMieszko MisIM
🇵🇱POL·2381
+5 −11 =8
24 games·last met Nov 2025
View head-to-head →
vsTymon CzernekFM
🇵🇱POL·2412
+10 −4 =6
20 games·last met Nov 2025
View head-to-head →
vsBartlomiej NiedbalaIM
🇵🇱POL·2378
+4 −7 =7
18 games·last met Jun 2022
View head-to-head →
vsPawel TeclafGM
🇵🇱POL·2573
+0 −10 =6
16 games·last met Aug 2023
View head-to-head →
vsMaciej CzoporIM
🇵🇱POL·2458
+4 −5 =7
16 games·last met Jun 2022
View head-to-head →
Rankings
/
Poland
#44
out of 10,756 players
Europe
#618
in continent
World
#1,026
out of 400,000+
National ranking
Europe & World
Europe
World
Poland
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| ... | ||
| 44 | 2,449 | |
Europe
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| 3 | 🇫🇷Follow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more. | 2,759 |
| 5 | 🇵🇱Follow Jan-Krzysztof DudaTrack their monthly FIDE ratings, games, tournaments and more. | 2,739 |
| 6 | 🇳🇱Follow Jorden Van ForeestTrack their monthly FIDE ratings, games, tournaments and more. | 2,735 |
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| ... | ||
| 618 | 2,449 | |
World
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| 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 |
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| 1026 | 2,449 | |