CChessStats
Format
SD

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 1606 — just 13 short of his peak of 1619 (Mar 2026, age 15). He is on a steady climb with +67 Elo over the past 12 months. 27 rated games in the past year (≈22/year long-term). Recent standard appearances include 2026 Gold Coast Autumn Classical Rounds 2-6, 2026 Gold Coast Autumn Classical Round 1, and 2026 O2C Doeberl Cup Minor. 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

1606

Standard

Rpd1716·Blz1534

All-time high

1619

−13 pts below
Mar 2026 · age 15

Activity

19

games / yr avg. · ≈2/mo

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

Signature stat

#144,704

#144,704 · players worldwide · of 218,279

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 · −13 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

Peak
FIDE title
Threshold
First rated
FIDE recal.

Activity & highlights

Best result
2025 Byron Capital Darling Downs Open - Major Division
perf 1686 (+92) · 3.5/7 · #27
Top opponent
vs John A Marsden 1,880
2026 Churchie International 7 · May 2026 · +13.2 Elo
Evolution
+67
1539 → 1606
Tournaments
8
36 games
Score
19.5/ 3654.2%
16W7D13L
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

8 events
EventDateScoreRankPerfΔ Elo
2026 Gold Coast Autumn Classical Rounds 2-6
Swiss
May 20261/1#202526-13.6
2026 Churchie International 7
Open Swiss
May 20263.5/4#842169+9.6
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
2025 Byron Capital Darling Downs Open - Major Division
Open Swiss
Oct 20253.5/7#271686+54.8
Worst Elo result: 2026 Gold Coast Club Challenger Rounds 4-7 (-24.4 Elo, finished #25).

Rankings

/
Australia
#1,137
out of 2,432 players
Asia-Pacific
#23,240
in continent
World
#144,692
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.
2,506
5
🇦🇺Smerdon, David CFollow David C SmerdonTrack their monthly FIDE ratings, games, tournaments and more.
2,460
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.
2,409
8
🇦🇺Liu, YiFollow Yi LiuTrack their monthly FIDE ratings, games, tournaments and more.
2,399
9
🇦🇺McClymont, BrodieFollow Brodie McClymontTrack their monthly FIDE ratings, games, tournaments and more.
2,389
10
🇦🇺Winkelman, AlbertFollow Albert WinkelmanTrack their monthly FIDE ratings, games, tournaments and more.
2,385
...
1137🇦🇺Sun, Dejun1,606
Asia-Pacific
1
🇺🇿Abdusattorov, NodirbekFollow Nodirbek AbdusattorovTrack their monthly FIDE ratings, games, tournaments and more.
2,777
1
🇺🇿Sindarov, JavokhirFollow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more.
2,777
3
🇮🇳Erigaisi ArjunFollow Erigaisi ArjunTrack their monthly FIDE ratings, games, tournaments and more.
2,761
4
🇨🇳Wei, YiFollow Yi WeiTrack their monthly FIDE ratings, games, tournaments and more.
2,753
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.
2,735
8
🇷🇺Nepomniachtchi, IanFollow Ian NepomniachtchiTrack their monthly FIDE ratings, games, tournaments and more.
2,733
9
🇮🇳Gukesh DFollow Gukesh DTrack their monthly FIDE ratings, games, tournaments and more.
2,732
10
🇻🇳Le, Quang LiemFollow Quang Liem LeTrack their monthly FIDE ratings, games, tournaments and more.
2,731
...
23240🇦🇺Sun, Dejun1,606
World
1
🇳🇴Carlsen, MagnusFollow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more.
2,841
2
🇺🇸Nakamura, HikaruFollow Hikaru NakamuraTrack their monthly FIDE ratings, games, tournaments and more.
2,792
2
🇺🇸Caruana, FabianoFollow Fabiano CaruanaTrack their monthly FIDE ratings, games, tournaments and more.
2,792
4
🇺🇿Abdusattorov, NodirbekFollow Nodirbek AbdusattorovTrack their monthly FIDE ratings, games, tournaments and more.
2,777
4
🇺🇿Sindarov, JavokhirFollow Javokhir SindarovTrack their monthly FIDE ratings, games, tournaments and more.
2,777
6
🇩🇪Keymer, VincentFollow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more.
2,767
7
🇳🇱Giri, AnishFollow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more.
2,764
8
🇮🇳Erigaisi ArjunFollow Erigaisi ArjunTrack their monthly FIDE ratings, games, tournaments and more.
2,761
9
🇺🇸So, WesleyFollow Wesley SoTrack their monthly FIDE ratings, games, tournaments and more.
2,753
9
🇨🇳Wei, YiFollow Yi WeiTrack their monthly FIDE ratings, games, tournaments and more.
2,753
...
144692🇦🇺Sun, Dejun1,606