Format
JC
Jacobs, Calvin Nicholas
🇿🇦FIDE 14333279· Male· South Africa· Born in 2009
Follow Calvin Nicholas JacobsTrack his monthly FIDE ratings, games, tournaments and more.
Calvin Nicholas Jacobs, a 17-year-old South African player, is rated 2156 — just 13 short of his peak of 2169 (Jan 2026, age 17) and ranked 2nd among South African players under 18, and in the top 5% worldwide. He is climbing fast, having gained +251 Elo over the past 12 months. 44 rated games in the past year (≈34/year long-term). Recent standard appearances include 2026 MCA Welcome Tshwane (A), Gauteng Inter-Region 2025 at Emerald Resort (U20), and 2025 Alekhine Open Chess Tournament (A). Also played 1 blitz event (including 2025 South African Open Chess Championships (Blitz)) recently. He reached South African #19 in Jan 2026.
At junior level, he reached #2, #4, #3, #2 and #2 nationally in U18, U16, U14, U12 and U10.
Current rating
2156
Standard
Rpd—·Blz1961
All-time high
2169
−13 pts below
Jan 2026 · age 17
Jan 2026 · age 17
Activity
62
games / yr avg. · ≈5/mo
38 past 12 mo · ≈3/mo
classical only
Active
classical only
Active
Signature stat
#2
#2 · South African players under 18 · of 307
Career timeline
13 entries2026
Peak South African rank: #19
at age 17 · rated 2169
Jan 2026
2nd South African U18 player
at age 17 · rated 2169
Jan 2026
All-time peak 2169
at age 17 · −13 from today
Jan 2026
2025
4th South African U16 player
at age 16 · rated 2151
Oct 2025
Crossed 2100
at age 16
Sep 2025
Crossed 2000
at age 16
Aug 2025
Standard rating history
Peak
FIDE title
Threshold
First rated
Inactive period
COVID-19
FIDE recal.
Activity & highlights
Top opponent
Evolution
+215
1941 → 2156
Tournaments
6
38 games
Score
30.5/ 3880.3%
28W5D5L
Top 3 wins
Top 3 losses
Last 12 months — tournaments
6 events| Event | Date | Score | Rank | Perf | Δ Elo |
|---|---|---|---|---|---|
Swiss | Jan 2026 | 3.5/5 | #10 | 2066 | -13.6 |
Team | Dec 2025 | 5/5 | #1 | 2471 | +19.6 |
Swiss | Sep 2025 | 5/5 | #1 | 2621 | +28.8 |
Swiss | Aug 2025 | 5/5 | #1 | 2622 | +40.4 |
Open Swiss | Jun 2025 | 6.5/11 | #9 | 2162 | +139.6 |
Swiss | Jun 2025 | 5.5/7 | #3 | 2002 | +36.0 |
Most-Played Opponents
vsAbinavah Sathish
🇿🇦RSA·1849
+5 −7 =2
14 games·last met Sep 2025
View head-to-head →
vsJohannes Manyedi MabuselaIM
🇿🇦RSA·2112
+3 −7 =1
11 games·last met Jul 2025
View head-to-head →
vsTiaan Benjamin Jacobs
🇿🇦RSA·1664
+3 −0 =4
7 games·last met Dec 2025
View head-to-head →
vsEugene Boheim
🇿🇦RSA·1708
+7 −0 =0
7 games·last met Apr 2025
View head-to-head →
vsEdward Potgieter
🇿🇦RSA·1987
+3 −3 =1
7 games·last met Feb 2025
View head-to-head →
Rankings
/
South Africa
#23
out of 1,876 players
Africa
#172
in continent
World
#10,850
out of 400,000+
National ranking
Europe & World
Europe
World
South Africa
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