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Sun, Dejun

🇦🇺

FIDEFIDE 3252353· Male· Australia· Born in 2011

Follow Dejun SunTrack his monthly FIDE ratings, games, tournaments and more.

Dejun Sun, a 15-year-old Australian player, is rated 1610 — just 9 short of his peak of 1619 (Mar 2026, age 15). He is on a steady climb with +71 Elo over the past 12 months. 22 rated games in the past year (≈21/year long-term). Recent standard appearances include 2026 Gold Coast Autumn Classical Round 1, 2026 O2C Doeberl Cup Minor, and 2026 Gold Coast Club Challenger Rounds 4-7. Also played 3 rapid (including 2025 Arianne Caoili Memorial Rapid) and 3 blitz events (including 2026 O2C Doeberl Cup Blitz Open) recently.

At junior level, he reached #97 and #63 nationally in U14 and U12.

Current rating

1610

Standard

Rpd1716·Blz1534

All-time high

1619

−9 pts below
Mar 2026 · age 15

Activity

20

games / yr avg. · ≈2/mo

22 past 12 mo · ≈2/mo
classical only
Moderately active

Signature stat

#142,583

#142,583 · players worldwide · of 216,808

Career timeline

10 entries
2026
Re-crossed 1600
at age 15
May 2026
Crossed 1600
at age 15
Mar 2026
All-time peak 1619
at age 15 · −9 from today
Mar 2026
2025
Re-crossed 1500
at age 14
Mar 2025
2024
Best 12-month gain (+322 Elo)
1190 → 1512
Jul 2024
Crossed 1500
at age 13
Mar 2024

Standard rating history

Last 12 months — activity & highlights

Best result
2025 Byron Capital Darling Downs Open - Major Division
perf 1686 (+92) · 3.5/7 · #27
Top opponent
vs Jonah Awad 1,750
2025 Byron Capital Darling Downs Open - Major Division · Oct 2025 · +8.4 Elo
Evolution
+71
1539 → 1610
Tournaments
6
27 games
Score
15/ 2755.6%
12W6D9L
Top 3 losses
1.[L]vsAeson Ha1,587·2026 O2C Doeberl Cup Minor·R7·-21.3
2.[L]vsLouis Serfontein1,599·2026 O2C Doeberl Cup Minor·R2·-20.6
3.[L]vsWei Yi-Chen1,624·2026 O2C Doeberl Cup Minor·R6·-19.2

Last 12 months — tournaments

6 events
EventDateScoreRankPerfΔ Elo
2026 Gold Coast Autumn Classical Round 1
Swiss
Apr 20261/1#2—+26.0
2026 O2C Doeberl Cup Minor
Open Swiss
Apr 20263.5/7#561563-12.4
2026 Gold Coast Club Challenger Rounds 4-7
Swiss
Feb 20261/1#25—-24.4
2026 Queensland Reserves and Tin Cup
Open Swiss
Feb 20264.5/4#232505+42.8
2026 Gold Coast Club Challenger Rounds 1-3
Swiss
Feb 20261.5/2#16—-16.4
Worst Elo result: 2026 Gold Coast Club Challenger Rounds 4-7 (-24.4 Elo, finished #25).

Rankings

/
Australia
#1,108
out of 2,392 players
Asia-Pacific
#22,651
in continent
World
#142,573
out of 400,000+

National ranking

Europe & World

Europe
World
Australia
1
🇦🇺Cheng, BobbyFollow Bobby ChengTrack their monthly FIDE ratings, games, tournaments and more.
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
...
1108🇦🇺Sun, Dejun1,610
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
...
22651🇦🇺Sun, Dejun1,610
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
...
142573🇦🇺Sun, Dejun1,610