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Develey, Isaiah

🇨🇭

FIDEFIDE 1368451· Male· Switzerland· Born in 2016

Follow Isaiah DeveleyTrack his monthly FIDE ratings, games, tournaments and more.

Isaiah Develey, a 10-year-old Swiss player, is rated 1576 — just 21 short of his peak of 1597 (Jun 2025, age 9). He has held steady between 1550 and 1600 for 14 months. 23 rated games in the past year (≈30/year long-term). Recent standard appearances include SJMM 2025-2026 Day 4, Championnat Suisse junior - 4 manche qualificative U10, and SJMM 2025-2026 Day 3. Also played 4 rapid events (including 33. Tournoi Echecs Martigny) recently.

At junior level, he reached #11 nationally in U10.

Current rating

1576

Standard

Rpd1551·Blz—

All-time high

1597

−21 pts below
Jun 2025 · age 9

Activity

27

games / yr avg. · ≈2/mo

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

Signature stat

#156,265

#156,265 · players worldwide · of 218,279

Career timeline

6 entries
2026
11th Swiss U10 player
at age 10 · rated 1588
Jan 2026
2025
All-time peak 1597
at age 9 · −21 from today
Jun 2025
Crossed 1500
at age 9
May 2025
Crossed 1400
at age 9
May 2025
Crossed 1200
at age 9
May 2025
First FIDE rating
1594 · at age 9
May 2025

Standard rating history

Peak
FIDE title
Threshold
First rated

Activity & highlights

Top opponent
vs Robert Weis 1,714
U10 Qualification 2026 Hergiswil · Sep 2025 · +8.1 Elo
Evolution
-18
1594 → 1576
Tournaments
7
27 games
Score
15/ 2755.6%
12W6D9L
Top 3 wins
1.[W]vsDavid Sadeh1,656·SJEM U10 Final·R3·+24.5
2.[W]vsMatteo Caratti1,622·SJMM 2025-2026 Day 3·R4·+22.6
3.[W]vsLucien Vallot1,601·SJEM U10 Final·R2·+21.4

Last 12 months — tournaments

7 events
EventDateScoreRankPerfΔ Elo
SJEM U10 Final
Swiss
May 20263.5/7#81612+22.4
SJMM 2025-2026 Day 4
Team
Apr 20261/1#322378-20.0
Championnat Suisse junior - 4 manche qualificative U10
Open Swiss
Mar 20262.5/4#51535-3.6
SJMM 2025-2026 Day 3
Team
Mar 20261.5/2#141779+23.6
U10 Qualification Basel Standard
Open Swiss
Jan 20261.5/3#201509-36.0
Qualification-2 U10
Swiss
Nov 20253.5/2#52392+22.4
U10 Qualification 2026 Hergiswil
Open Swiss
Sep 20251.5/4#91470-29.6
Worst Elo result: U10 Qualification Basel Standard (-36.0 Elo, finished #20).

Rankings

/
Switzerland
#2,789
out of 3,528 players
Europe
#103,170
in continent
World
#156,249
out of 400,000+

National ranking

Europe & World

Europe
World
Switzerland
1
🇨🇭Milov, VadimFollow Vadim MilovTrack their monthly FIDE ratings, games, tournaments and more.
2,577
2
🇨🇭Bogner, SebastianFollow Sebastian BognerTrack their monthly FIDE ratings, games, tournaments and more.
2,547
3
🇨🇭Peng, Li MinFollow Li Min PengTrack their monthly FIDE ratings, games, tournaments and more.
2,541
4
🇨🇭Demuth, AdrienFollow Adrien DemuthTrack their monthly FIDE ratings, games, tournaments and more.
2,523
5
🇨🇭Georgiadis, NicoFollow Nico GeorgiadisTrack their monthly FIDE ratings, games, tournaments and more.
2,520
6
🇨🇭Pelletier, YannickFollow Yannick PelletierTrack their monthly FIDE ratings, games, tournaments and more.
2,514
7
🇨🇭Kosteniuk, AlexandraFollow Alexandra KosteniukTrack their monthly FIDE ratings, games, tournaments and more.
2,496
8
🇨🇭Georgiadis, IoannisFollow Ioannis GeorgiadisTrack their monthly FIDE ratings, games, tournaments and more.
2,483
9
🇨🇭Vernay, ClovisFollow Clovis VernayTrack their monthly FIDE ratings, games, tournaments and more.
2,465
10
🇨🇭Jenni, FlorianFollow Florian JenniTrack their monthly FIDE ratings, games, tournaments and more.
2,462
...
2789🇨🇭Develey, Isaiah1,576
Europe
1
🇳🇴Carlsen, MagnusFollow Magnus CarlsenTrack their monthly FIDE ratings, games, tournaments and more.
2,841
2
🇩🇪Keymer, VincentFollow Vincent KeymerTrack their monthly FIDE ratings, games, tournaments and more.
2,767
3
🇳🇱Giri, AnishFollow Anish GiriTrack their monthly FIDE ratings, games, tournaments and more.
2,764
4
🇫🇷Firouzja, AlirezaFollow Alireza FirouzjaTrack their monthly FIDE ratings, games, tournaments and more.
2,744
5
🇵🇱Duda, Jan-KrzysztofFollow Jan-Krzysztof DudaTrack their monthly FIDE ratings, games, tournaments and more.
2,739
6
🇭🇺Rapport, RichardFollow Richard RapportTrack their monthly FIDE ratings, games, tournaments and more.
2,729
7
🇳🇱Van Foreest, JordenFollow Jorden Van ForeestTrack their monthly FIDE ratings, games, tournaments and more.
2,728
8
🇫🇷Vachier-Lagrave, MaximeFollow Maxime Vachier-LagraveTrack their monthly FIDE ratings, games, tournaments and more.
2,721
9
🇦🇿Mamedyarov, ShakhriyarFollow Shakhriyar MamedyarovTrack their monthly FIDE ratings, games, tournaments and more.
2,717
10
🇹🇷Erdogmus, Yagiz KaanFollow Yagiz Kaan ErdogmusTrack their monthly FIDE ratings, games, tournaments and more.
2,713
...
103170🇨🇭Develey, Isaiah1,576
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
...
156249🇨🇭Develey, Isaiah1,576