Jumuiya Ya Afrika Mashariki 12- Square Series 2026 Major Section- 2nd Episode
Open SwissStandard
14 players participated in this 3-round tournament, held on 15 Mar 2026 in Nairobi, Kenya. 2 titled players from 2 federations. Top 10 Elo average was 1965, and top seed was Gong Thon Gong (🇸🇸 SSD, CM, 2137).
Ngong Atem Gak (🇰🇪 KEN, 1944) won with 3.0/3, ahead of Mbaabu Cyprian (2.0) and Gong Thon Gong (2.0). Atem Gak broke clear in the final round.
The biggest upset came in round 1: Gikandi Bernice Wambui (1611) beat Chumba Allan (1927), a +316-point gap.
Location
🇰🇪Nairobi, Kenya
Dates
15 Mar 2026
Time control
Standard: 90 minutes for the whole game
System
Swiss · 3 rounds
Titled players · 2
FM×1
CM×1
Federations · 2 represented
🇰🇪Kenya×10
🇸🇸South Sudan×3
Top 3
- 🥇
- 🥈
- 🥉
How it unfolded
Top 6 · 3 roundsNgong Atem Gak led from R3; +1.0-point edge over the runner-up.
Co-leaders
7
2
1
R3–R3 · LEAD HELD
Ngong Atem Gak never relinquished the lead after R3; final gap +1.0 over the runner-up.
R1–R3 · WIN STREAK
Ngong Atem Gak won 3 in a row (R1–R3).
Key matchups · top 4
Head-to-head between the four finishers| Player | 1 | 2 | 3 | 4 |
|---|---|---|---|---|
| 1Ngong Atem Gak | * | — | — | — |
| 2CMGong Thon Gong | — | * | — | 1 |
| 3Gabriel Njuki | — | — | * | — |
| 4Omondi Stanley | — | 0 | — | * |
Grille américaine
| # | Player | Elo | Fed | R1 | R2 | R3 | Pts | Bu C1 | Bu | SB | Perf | Δ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Atem Gak, Ngong | 1944 | KEN | +13N | +10B | +2N | 3.0 | 3.0 | 3.0 | 3.00 | 2596 | +18.6 |
| 2 | Mbaabu Cyprian | 1925 | KEN | +14N | +3N | −1B | 2.0 | 5.0 | 5.0 | 2.00 | 2041 | +12.0 |
| 3 | Gong Thon GongCM | 2137 | SSD | +4N | −2B | +6N | 2.0 | 4.0 | 5.5 | 3.50 | 2020 | -8.0 |
| 4 | Omondi Stanley | 1915 | KEN | −3B | +14N | +11B | 2.0 | 3.0 | 3.0 | 1.00 | 1875 | -1.6 |
| 5 | Njuki, Gabriel | 2034 | KEN | −10B | +12N | +7B | 2.0 | 2.5 | 3.5 | 2.50 | 2005 | -1.2 |
| 6 | Manyeki Nathaniel | 1845 | KEN | +8N | =7N | −3B | 1.5 | 3.5 | 5.0 | 2.25 | 2087 | +36.0 |
| 7 | Manyok Chaderek P | 2060 | SSD | +12N | =6B | −5N | 1.5 | 3.5 | 4.5 | 1.75 | 1893 | -12.6 |
| 8 | Peter Majur ManyangFM | 2063 | SSD | −6B | +11N | =9B | 1.5 | 3.0 | 4.0 | 1.75 | 1812 | -17.6 |
| 9 | Chumba Allan | 1927 | KEN | −11B | +13N | =8N | 1.5 | 2.5 | 2.5 | 0.75 | 1786 | -9.8 |
| 10 | Kaburo Winnie | 1770 | KEN | +5N | −1N | −12B | 1.0 | 5.0 | 6.0 | 2.00 | 1801 | +2.4 |
| 11 | Gikandi Bernice Wambui | 1611 | KEN | +9N | −8B | −4N | 1.0 | 3.5 | 5.0 | 1.50 | 1826 | +26.0 |
| 12 | Muchoki Trevor Kanyuithia | 1800 | KEN | −7B | −5B | +10N | 1.0 | 3.5 | 4.5 | 1.00 | 1833 | +3.2 |
| 13 | Maguor Deng Gheit Longar | 1684 | KEN | −1B | −9B | F | 0.0 | 4.5 | 4.5 | 0.00 | 1136 | -15.2 |
| 14 | FIDE 554017203 | 0 | — | −2B | −4B | F | 0.0 | 4.0 | 4.0 | 0.00 | 1120 | 0.0 |
Key insights
Biggest movers and upsets — the story behind the numbers.
Top rating gainers
- 1Manyeki NathanielKEN+36.01.5 pts · #7
- 2Gikandi Bernice WambuiKEN+26.01.0 pts · #9
- 3Atem Gak, NgongKEN+18.63.0 pts · #1
Top rating losers
- 1Peter Majur ManyangFMSSD-17.61.5 pts · #6
- 2Maguor Deng Gheit LongarKEN-15.20.0 pts · #14
- 3Manyok Chaderek PSSD-12.61.5 pts · #4
Biggest upsets
- R1+316 Elo gap
- R1+264 Elo gap
- R1+218 Elo gap