Format
OS
Oosthuizen, Stefan
🇿🇦FIDE 534031820· Male· South Africa· Born in 2010
Follow Stefan OosthuizenTrack his monthly FIDE ratings, games, tournaments and more.
Stefan Oosthuizen, a 16-year-old South African player, is rated 1644. He has slipped back 52 Elo over the past 12 months. 13 rated games in the past year. Recent standard appearances include SBDCA TRIAL 4 2026 (U16), SBDCA TRIAL 1 2026 (U18), and 2025 Mzansi Individual Championships (U16 Open). His peak of 1696 was reached at age 15 (Oct 2025).
At junior level, he reached #25 nationally in U16.
Current rating
1644
Standard
Rpd—·Blz—
All-time high
1696
−52 pts below
Oct 2025 · age 15
Oct 2025 · age 15
Activity
20
games / yr avg. · ≈2/mo
13 past 12 mo · ≈1/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#129,909
#129,909 · players worldwide · of 216,808
Career timeline
6 entries2026
25th South African U16 player
at age 16 · rated 1696
Jan 2026
2025
Crossed 1600
at age 15
Oct 2025
Crossed 1500
at age 15
Oct 2025
Crossed 1400
at age 15
Oct 2025
All-time peak 1696
at age 15 · −52 from today
Oct 2025
First FIDE rating
1696 · at age 15
Oct 2025
Standard rating history
Last 12 months — activity & highlights
Evolution
-52
1696 → 1644
Tournaments
5
27 games
Score
15.5/ 2757.4%
12W7D8L
Top 3 wins
Top 3 losses
3.[L]vsSaud Ackerdien1,578·2025 Mzansi Inter Provincial Team Championships (U16 Open Championship)·R5·-26.5
Last 12 months — tournaments
5 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Swiss | Feb 2026 | 4/2 | #4 | 2293 | -19.2 |
Swiss | Jan 2026 | 3.5/1 | #8 | 2238 | -12.8 |
Open Swiss | Dec 2025 | 2/1 | #72 | 2225 | -13.2 |
Team | Dec 2025 | 2.5/4 | #18 | 1678 | -6.8 |
Swiss | Sep 2025 | 3.5/5 | #6 | 1552 | 0.0 |
Rankings
/
South Africa
#731
out of 1,842 players
Africa
#5,181
in continent
World
#129,903
out of 400,000+
National ranking
Europe & World
Europe
World
South Africa
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World
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