CChessStats

Jumuia Ya Afrika Mashariki End Year Open Chess Festival 2025 - Major Section

Open SwissStandard

15 players participated in this 6-round tournament, held from 17 Dec 2025 to 18 Dec 2025 in Nairobi, Kenya. 2 titled players from 3 federations. Top 10 Elo average was 1975, and top seed was Manyok Chaderek P (🇸🇸 SSD, 2152).

Madol Garang Panthou Joh (🇸🇸 SSD, CM, 2136) won with 4.5/6, ahead of Manyok Chaderek P (4.5) and Gabriel Njuki (4.5). Joh shared the lead from round 1, winning on tie-break.

The biggest upset came in round 3: Mbaabu Cyprian (1725) beat Peter Majur Manyang (FM, 2074), a +349-point gap.

Location
🇰🇪Nairobi, Kenya
Dates
17 Dec 2025 → 18 Dec 2025
Time control
Standard: 90 minutes for the whole game
System
Swiss · 6 rounds
Top seed
🇸🇸Manyok Chaderek P2152
Avg top 10
1,975
Participants
15
Titled players · 2
FM×1
CM×1
Federations · 3 represented
🇰🇪Kenya×9
🇸🇸South Sudan×5
🇺🇬Uganda×1
Top 3

How it unfolded

Top 6 · 6 rounds

Tight race until R6; 3 players tied at 4.5/6, decided on Buchholz.

Co-leaders
6
3
1
1
3
3
1.534.56R1R2R3R4R5R6
Manyok Chaderek4.5Njuki4.5Joh4.5Manyang4Stanley4Cyprian3
R6 · TIEBREAK CLUSTER

3 players finish on 4.5/6. Joh takes the title on Buchholz Cut1 (18.0).

WIN STREAKS · 3 top finishers

Manyok Chaderek P 3 wins (R3–R5)Gabriel Njuki 3 wins (R3–R5)CM Madol Garang Panthou Joh 4 wins (R1–R4)

Key matchups · top 4

Head-to-head between the four finishers
Player1234
1Manyok Chaderek P*—
1
—
2Gabriel Njuki—*
½
—
3CMMadol Garang Panthou Joh
0
½
*—
4FMPeter Majur Manyang———*

Grille américaine

#PlayerEloFedR1R2R3R4R5R6PtsBu C1BuSBPerfΔ
1Madol Garang Panthou JohCM2136SSD+10N+9B+8N+4B−2N=3B4.518.020.013.252138+2.4
2Manyok Chaderek P2152SSD+11B−6N+10B+7N+1B=4B4.516.518.513.502090-4.6
3Njuki, Gabriel1971KEN=15B=4N+12B+6N+8B=1N4.515.516.011.502081+19.4
4Omondi Stanley1810KEN+5N=3B+6B−1N+9B=2N4.020.523.014.002162+52.8
5Peter Majur ManyangFM2074SSD−4B+15N−7N+14B+11B+6N4.013.013.56.501933-17.0
6Ngong Samuel Gai2017SSD+13N+2B−4N−3B+10N−5B3.019.020.58.001921-14.0
7Mbaabu Cyprian1725KENF−8N+5B−2B+15N+9N3.014.014.07.002032+52.8
8Panchol, James Madol2050SSD+14N+7B−1B=9N−3NF2.516.517.55.251893-18.6
9Chumba Allan1872KEN+12N−1N+11B=8B−4N−7B2.516.017.54.751810-11.4
10Kagambi, Lawrence1815KEN−1B+13N−2N+12B−6BF2.016.017.53.001856+2.4
11Waweru Davidson Mugo1854KEN−2N+14B−9N+13B−5NF2.013.513.52.501841-6.4
12Gikandi Bernice Wambui1626KEN−9BF−3N−10N=13B+14N1.511.511.51.751676+8.0
13Sheikh, Mukhtar Nur1705KEN−6B−10BF−11N=12N+15B1.59.09.01.251650-8.4
14Mathenge Gichuga1761KEN−8B−11N+15B−5NF−12B1.010.510.50.501617-38.8
15Okurut Martin Kingsley1693UGA=3N−5B−14NF−7B−13N0.514.014.02.251481-41.6

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers
Top rating losers
Biggest upsets