Format
WK
Willenberg, Kenneth Sean
CM🇿🇦FIDE 14300540· Male· South Africa· Born in 1984
Follow Kenneth Sean WillenbergTrack his monthly FIDE ratings, games, tournaments and more.
Kenneth Sean Willenberg, a 42-year-old South African Candidate Master, is rated 1899. He plays occasionally (7 games in the last 12 months) and had 3 career breaks: 14 months (2003–2004), 41 months (2004–2008) and 57 months (2008–2013). Recent appearance: Cape Town Chess Federation Club League 2025 (A). Also played 1 rapid (including Hermanus Chess Club Open 2026 (Championship)) and 1 blitz events (including Hermanus Chess Club Open 2026 (Blitz)) recently. His peak of 2269 was reached at age 18 (Jan 2002); he also reached South African #4 in Apr 2002.
Awarded CM in 2022 (age 38). At junior level, he reached #1 and #1 nationally in U20 and U18.
Current rating
1899
Standard
Rpd1979·Blz1984
All-time high
2269
−370 pts below
Jan 2002 · age 18
Jan 2002 · age 18
Activity
25
games / yr avg. · ≈2/mo
7 past 12 mo · ≈1/mo
classical only
Moderately active
classical only
Moderately active
Signature stat
#48,363
#48,363 · players worldwide · of 218,279
Career timeline
15 entries2025
5th South African 40-45 player
at age 41 · rated 1927
Aug 2025
2022
CM title awardedCM
at age 38
Jun 2022
2020
Best 12-month gain (+71 Elo)
1906 → 1977
Jan 2020
2017
100 career games
at age 33
May 2017
2008
Inactive for 57 months
paused at 2150 → returned at 2126
Oct 2008
2004
Inactive for 41 months
paused at 2183 → returned at 2133
Oct 2004
Standard rating history
Peak
FIDE title
Threshold
First rated
Inactive period
COVID-19
FIDE recal.
Activity & highlights
Top opponent
Evolution
-28
1927 → 1899
Tournaments
1
8 games
Score
3/ 837.5%
3W0D5L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
1 event| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Team | Jul 2025 | 3/7 | #66 | 1771 | -28.0 |
Most-Played Opponents
vsShabir Hussain BhawoodienFM
🇿🇦RSA·2020
+5 −6 =1
12 games·last met Aug 2023
View head-to-head →
vsCalvin John KlaasenFM
🇿🇦RSA·2171
+0 −7 =2
9 games·last met Apr 2025
View head-to-head →
vsCherwin Kleinsmidt
🇿🇦RSA·1965
+2 −1 =5
8 games·last met Jun 2023
View head-to-head →
vsCharlton Mnyasta
🇿🇦RSA·2206
+1 −5 =1
7 games·last met Apr 2026
View head-to-head →
vsKeegan AgulhasFM
🇿🇦RSA·1966
+2 −2 =2
6 games·last met Aug 2025
View head-to-head →
Rankings
/
South Africa
#111
out of 1,876 players
Africa
#1,425
in continent
World
#48,362
out of 400,000+
National ranking
Europe & World
Europe
World
South Africa
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| 111 | 1,899 | |
Africa
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| ... | ||
| 1425 | 1,899 | |
World
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| ... | ||
| 48362 | 1,899 | |