Format
DP
Dumoulin, Peissone
🇹🇭FIDE 6223303· Male· Thailand· Born in 2001
Follow Peissone DumoulinTrack his monthly FIDE ratings, games, tournaments and more.
Peissone Dumoulin, a 25-year-old player, is rated 1546. He has slipped back 108 Elo over the past 12 months. 33 rated games in the past year (≈21/year long-term). Recent standard appearances include 49th Thailand Chess Championship 2026 - Open, Red Knight Chess Club Invitational End of Year Tournament, and 2nd The Rooky Mini-Open 2025 - Standard Challenger. Also played 10 rapid (including Red Knight Chess Cafe Anniversary Rapid Championship 2025) and 8 blitz events (including BCC FIDE Blitz July 2025) recently. His peak of 1654 was reached at age 24 (Oct 2025, #59 nationally at the time).
Current rating
1546
Standard
Rpd1557·Blz1482
All-time high
1654
−108 pts below
Oct 2025 · age 24
Oct 2025 · age 24
Activity
20
games / yr avg. · ≈2/mo
33 past 12 mo · ≈3/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#167,873
#167,873 · players worldwide · of 218,279
Career timeline
7 entries2026
K-factor lowered to 20
at age 25
May 2026
2025
Peak national rank: #59
at age 24 · rated 1654
Oct 2025
Crossed 1600
at age 24
Oct 2025
Crossed 1500
at age 24
Oct 2025
Crossed 1400
at age 24
Oct 2025
All-time peak 1654
at age 24 · −108 from today
Oct 2025
Standard rating history
Peak
FIDE title
Threshold
First rated
Activity & highlights
Top opponent
Evolution
—
Tournaments
5
34 games
Score
16/ 3447.1%
11W10D13L
Top 3 wins
1.[W]vsPakornnarong Liukasemsarn1,734·Red Knight Chess Club Invitational End of Year Tournament·R6·+30.6
2.[W]vsChanaradee Olankittikul1,663·Red Knight Chess Club Invitational End of Year Tournament·R3·+27.3
Top 3 losses
Last 12 months — tournaments
5 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Open Swiss | Apr 2026 | 4/6 | #33 | 1859 | +24.4 |
Round-Robin | Dec 2025 | 3.5/8 | #5 | 1558 | -76.0 |
Open Swiss | Oct 2025 | 3.5/5 | #9 | 1707 | -24.4 |
Swiss | Oct 2025 | 2.5/5 | #6 | 1705 | -30.4 |
Swiss | Sep 2025 | 2.5/3 | #11 | 1634 | 0.0 |
Worst Elo result: Red Knight Chess Club Invitational End of Year Tournament (-76.0 Elo, finished #5).
Rankings
/
Thailand
#138
out of 397 players
Asia-Pacific
#30,580
in continent
World
#167,849
out of 400,000+
National ranking
Europe & World
Europe
World
Thailand
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| ... | ||
| 138 | 1,546 | |
Asia-Pacific
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| ... | ||
| 30580 | 1,546 | |
World
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| 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 |
| ... | ||
| 167849 | 1,546 | |