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De Jong, Sjef

🇦🇺

FIDEFIDE 3261840· Male· Australia· Born in 1957

Follow Sjef De JongTrack his monthly FIDE ratings, games, tournaments and more.

Sjef De Jong, a 69-year-old Australian player, is rated 1607. He has held steady between 1600 and 1650 for 9 months. 16 rated games in the past year (≈14/year long-term). Recent standard appearances include 2025 Perth International Open, 2025 Richard Lilly Swiss Rounds 4-7, and 2025 Richard Lilly Swiss Rounds 1-3. His peak of 1641 was reached at age 67 (Apr 2024).

Current rating

1607

Standard

Rpd—·Blz—

All-time high

1641

−34 pts below
Apr 2024 · age 67

Activity

12

games / yr avg. · ≈1/mo

16 past 12 mo · ≈1/mo
classical only
Moderately active

Signature stat

#143,676

#143,676 · players worldwide · of 216,808

Career timeline

11 entries
2025
Re-crossed 1600
at age 68
Sep 2025
Re-crossed 1600
at age 68
Jun 2025
2024
K-factor lowered to 20
at age 67
Aug 2024
Best 12-month gain (+242 Elo)
1389 → 1631
Jul 2024
All-time peak 1641
at age 67 · −34 from today
Apr 2024
Crossed 1600
at age 67
Mar 2024

Standard rating history

Last 12 months — activity & highlights

Best result
2025 Perth International Open
perf 1664 (+57) · 1.5/5 · #33
Top opponent
vs Elvan Rrasa 1,794
2025 Perth International Open · Sep 2025 · +14.9 Elo
Evolution
-4
1611 → 1607
Tournaments
5
19 games
Score
6.5/ 1934.2%
4W5D10L

Last 12 months — tournaments

5 events
EventDateScoreRankPerfΔ Elo
2025 Perth International Open
Open Swiss
Sep 20251.5/5#331664+6.2
2025 Richard Lilly Swiss Rounds 4-7
Swiss
Jul 20252/3#171776+5.0
2025 Richard Lilly Swiss Rounds 1-3
Swiss
Jul 20251/3#121616+1.4
2025 Robert Pilgrim Open Rounds 5-7
Swiss
Jun 20250/3#25990-15.8
2025 Robert Pilgrim Open Rounds 1-4
Swiss
May 20252/2#222698+11.8
Worst Elo result: 2025 Robert Pilgrim Open Rounds 5-7 (-15.8 Elo, finished #25).

Rankings

/
Australia
#1,117
out of 2,392 players
Asia-Pacific
#22,978
in continent
World
#143,665
out of 400,000+

National ranking

Europe & World

Europe
World
Australia
1
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2,571
2
🇦🇺Kuybokarov, TemurFollow Temur KuybokarovTrack their monthly FIDE ratings, games, tournaments and more.
2,534
3
🇦🇺Tan, JustinFollow Justin TanTrack their monthly FIDE ratings, games, tournaments and more.
2,510
4
🇦🇺Sardana, RishiFollow Rishi SardanaTrack their monthly FIDE ratings, games, tournaments and more.
2,496
5
🇦🇺Smerdon, David CFollow David C SmerdonTrack their monthly FIDE ratings, games, tournaments and more.
2,476
6
🇦🇺Morris, JamesFollow James MorrisTrack their monthly FIDE ratings, games, tournaments and more.
2,423
7
🇦🇺Zhao, Zong-YuanFollow Zong-Yuan ZhaoTrack their monthly FIDE ratings, games, tournaments and more.
2,415
8
🇦🇺Liu, YiFollow Yi LiuTrack their monthly FIDE ratings, games, tournaments and more.
2,401
9
🇦🇺McClymont, BrodieFollow Brodie McClymontTrack their monthly FIDE ratings, games, tournaments and more.
2,389
10
🇦🇺Bjelobrk, IgorFollow Igor BjelobrkTrack their monthly FIDE ratings, games, tournaments and more.
2,380
...
1117🇦🇺De Jong, Sjef1,607
Asia-Pacific
1
🇺🇿Abdusattorov, NodirbekFollow Nodirbek AbdusattorovTrack their monthly FIDE ratings, games, tournaments and more.
2,780
2
🇺🇿Sindarov, JavokhirFollow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more.
2,776
3
🇨🇳Wei, YiFollow Yi WeiTrack their monthly FIDE ratings, games, tournaments and more.
2,753
4
🇮🇳Erigaisi ArjunFollow Erigaisi ArjunTrack their monthly FIDE ratings, games, tournaments and more.
2,751
5
🇮🇳Anand, ViswanathanFollow Viswanathan AnandTrack their monthly FIDE ratings, games, tournaments and more.
2,739
6
🇨🇳Ding, LirenFollow Liren DingTrack their monthly FIDE ratings, games, tournaments and more.
2,738
7
🇮🇳Praggnanandhaa RFollow Praggnanandhaa RTrack their monthly FIDE ratings, games, tournaments and more.
2,733
8
🇮🇳Gukesh DFollow Gukesh DTrack their monthly FIDE ratings, games, tournaments and more.
2,732
9
🇻🇳Le, Quang LiemFollow Quang Liem LeTrack their monthly FIDE ratings, games, tournaments and more.
2,731
10
🇷🇺Nepomniachtchi, IanFollow Ian NepomniachtchiTrack their monthly FIDE ratings, games, tournaments and more.
2,729
...
22978🇦🇺De Jong, Sjef1,607
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
...
143665🇦🇺De Jong, Sjef1,607