Format
Ondersteijn, Niels
IM🇳🇱FIDE 1011162· Male· Netherlands· Born in 1984
Follow Niels OndersteijnTrack his monthly FIDE ratings, games, tournaments and more.
Niels Ondersteijn, a 42-year-old Dutch International Master, is rated 2367 and sitting in the top 1% of Dutch players, and in the top 1% worldwide. He has held steady between 2350 and 2400 for 20 months. 24 rated games in the past year (≈18/year long-term). Recent standard appearances include Dutch Team Competition - Meesterklasse Round 9, grenke Chess Open 2026 A-Open, and Dutch Team Competition - Meesterklasse Round 8. Also played 1 blitz event (including NK Snelschaak voor Clubteams 2025) recently. His peak of 2415 was reached at age 31 (Jun 2015, Dutch #42 at the time).
Awarded IM in 2018 (age 34) and FM in 2004 (age 20). At junior level, he reached #6 nationally in U20.
Current rating
2367
Standard
Rpd2392·Blz2440
All-time high
2415
−48 pts below
Jun 2015 · age 31
Jun 2015 · age 31
Activity
29
games / yr avg. · ≈2/mo
29 past 12 mo · ≈2/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
Top 1%
#61 · Dutch players · of 4,671
Career timeline
16 entries2025
6th Dutch 40-45 player
at age 41 · rated 2378
Dec 2025
2020
Inactive for 14 months
paused at 2372 → returned at 2376
Apr 2020
2018
IM title awardedIM
at age 34 · 2nd quarter Presidential Board 2018
Jul 2018
2015
Peak Dutch rank: #42
at age 31 · rated 2415
Jul 2015
Best 12-month gain (+91 Elo)
2324 → 2415
Jun 2015
All-time peak 2415
at age 31 · −33 from today
Jun 2015
Standard rating history
Peak
FIDE title
Threshold
First rated
Inactive period
COVID-19
Activity & highlights
Evolution
+3
2364 → 2367
Tournaments
10
29 games
Score
19/ 2965.5%
16W6D7L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
10 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Open Swiss | May 2026 | 3.5/6 | #29 | 2168 | -14.7 |
Team | Apr 2026 | 1/1 | #34 | 3077 | +3.8 |
Open Swiss | Apr 2026 | 6.5/9 | #64 | 2457 | +10.7 |
Team | Mar 2026 | 0/1 | #96 | 1719 | -3.0 |
Team | Feb 2026 | 0.5/1 | #44 | 2286 | -1.2 |
Team | Dec 2025 | 0/1 | #84 | 1417 | -7.1 |
Team | Nov 2025 | 1/1 | #32 | 3161 | +4.8 |
Team | Nov 2025 | 0.5/1 | #64 | 2399 | +0.4 |
Team | Oct 2025 | 5/7 | #49 | 2417 | +5.3 |
Team | Sep 2025 | 1/1 | #29 | 3104 | +4.2 |
Most-Played Opponents
vsThomas BeerdsenGM
🇳🇱NED·2519
+3 −6 =1
10 games·last met Feb 2025
View head-to-head →
vsHing Ting LaiIM
🇳🇱NED·2449
+3 −3 =2
8 games·last met Sep 2024
View head-to-head →
vsManuel BosboomIM
🇳🇱NED·2328
+5 −1 =0
6 games·last met Mar 2026
View head-to-head →
vsJan-Willem De JongIM
🇳🇱NED·2408
+1 −2 =3
6 games·last met Jul 2024
View head-to-head →
vsHenk VedderIM
🇳🇱NED·2342
+2 −3 =1
6 games·last met Apr 2018
View head-to-head →
Rankings
/
Netherlands
#61
out of 4,909 players
Europe
#1,464
in continent
World
#2,300
out of 400,000+
National ranking
Europe & World
Europe
World
Netherlands
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