Mombasa Open Chess Championship 2025 - Open

Open SwissStandard

70 players participated in this 6-round tournament, held from 10 Oct 2025 to 12 Oct 2025 in Mombasa, Kenya. 6 titled players from 3 federations. Top 10 Elo average was 2093, and top seed was Gong Thon Gong (🇸🇸 SSD, CM, 2190).

Peter Majur Manyang (🇸🇸 SSD, FM, 2088) won with 5.5/6, ahead of Nyola Wasswa Mark (5.0) and Mehul Gohil (5.0). Manyang shared the lead from round 4 and won solo starting round 5.

The biggest upset came in round 3: Chahindi Muluda (1815) beat Gong Thon Gong (CM, 2190), a +375-point gap.

Location

🇰🇪Mombasa, Kenya

Dates

10 Oct 2025 → 12 Oct 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 6 rounds

Top seed

🇸🇸CMGong Thon Gong2190

Avg top 10

2,093

Participants

Titled players · 6

FM×2

CM×4

Federations · 3 represented

🇰🇪Kenya×55

🇺🇬Uganda×9

🇸🇸South Sudan×6

Top 3

🥇
FMPeter Majur Manyang
🇸🇸SSD·2088
5.5pts·2371perf+34.0
🥈
Nyola Wasswa Mark
🇺🇬UGA·2117
5.0pts·2178perf+10.8
🥉
Mehul Gohil
🇰🇪KEN·1990
5.0pts·2135perf+20.6

How it unfolded

Top 6 · 6 rounds

FM Peter Majur Manyang led from R5; +0.5-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders

Manyang5.5Mark5Manyok Chaderek5Wagodo5Gohil5emmanuel4.5

R5–R6 · LEAD HELD

FM Peter Majur Manyang held the sole lead from R5 through R6 without losing it.

R6 · HEAD-TO-HEAD · WINNER VS 2ND

FM Peter Majur Manyang drew with Nyola Wasswa Mark (White).

WIN STREAKS · 3 top finishers

FM Peter Majur Manyang 5 wins (R1–R5)Nyola Wasswa Mark 3 wins (R3–R5)Manyok Chaderek P 3 wins (R4–R6)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1FMPeter Majur Manyang	*	½	—	—
2Nyola Wasswa Mark	½	*	—	—
3Manyok Chaderek P	—	—	*	—
4Abdul Shakuru Wagodo	—	—	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	Pts	Bu C1	Bu	SB	Perf	Δ
1	Peter Majur ManyangFM	2088	SSD	+41B	+24N	+28B	+9N	+6N	=2B	5.5	20.0	22.5	20.00	2371	+34.0
2	Nyola Wasswa Mark	2117	UGA	+30B	=13N	+38B	+21N	+7B	=1N	5.0	20.5	23.5	18.75	2178	+10.8
3	Gohil, Mehul	1990	KEN	+25B	+39N	+27B	−6B	+47N	+8B	5.0	18.0	20.0	15.50	2135	+20.6
4	Wagodo, Abdul Shakuru	1978	UGA	+48N	=23B	+29N	+40B	+9N	=6B	5.0	17.5	19.5	15.50	2150	+26.2
5	Manyok Chaderek P	2045	SSD	+59N	+47B	−8N	+22B	+10N	+19B	5.0	17.5	18.5	14.50	2146	+13.4
6	Wanyama, HaroldFM	2143	UGA	+53B	+49N	+16B	+3N	−1B	=4N	4.5	21.5	23.5	15.50	2128	-0.6
7	Egesa emmanuelCM	2119	UGA	+66N	+22B	+10N	=8B	−2N	+43B	4.5	19.0	20.0	13.00	2109	+0.4
8	Okonga, Hugh Misiko	1899	KEN	+51B	+57N	+5B	=7N	=11B	−3N	4.0	20.5	22.0	12.75	2071	+27.4
9	Ssonko, Mathias Allan	2152	UGA	+31N	+70B	+12N	−1B	−4B	+28N	4.0	20.5	20.5	10.00	2037	-14.0
10	Chitundu Limbikani	1913	KEN	+50B	+32N	−7B	+27N	−5B	+21N	4.0	19.0	21.0	11.50	1966	+9.0
11	Madol Garang Panthou JohCM	2104	SSD	F	=38N	+13B	+23B	=8N	+12B	4.0	18.5	20.0	15.00	2126	+2.8
12	Deng Khor Kuol, Michael	1972	SSD	+35N	+42B	−9B	+28N	+16B	−11N	4.0	18.0	20.5	12.50	2038	+11.2
13	Chege Kairu	1870	KEN	+68N	=2B	−11N	+48B	+40N	=15B	4.0	17.5	17.5	9.00	2001	+21.4
14	Ramesh, VasanthCM	1831	KEN	=34B	−17N	+52B	+26N	=37B	+30N	4.0	16.5	18.5	11.50	1972	+19.4
15	Mabior Anyuat Mabior	1973	SSD	=55B	+46N	−21B	+24N	+30B	=13N	4.0	16.5	18.0	11.75	1899	-10.0
16	Brian Gabriel Mwangi	1915	KEN	+61N	+18B	−6N	+59B	−12N	+29B	4.0	16.5	17.5	9.00	1941	+5.4
17	Gong Thon GongCM	2190	SSD	=40N	+14B	−23N	+42B	=36N	+31B	4.0	16.0	18.5	12.25	1943	-28.6
18	Lukoko Moses	1709	KEN	+20B	−16N	−32B	+51N	+39B	+49N	4.0	16.0	18.0	11.00	1951	+38.4
19	Ngani, Victor	1964	KEN	−27B	+50N	+55B	+32N	+49B	−5N	4.0	15.0	16.5	8.50	1927	-4.2
20	Karani Ezekiel	1921	KEN	−18N	+60B	+31N	−47B	+41N	+59B	4.0	12.5	13.5	7.50	1869	-7.4
21	Ngugi, Clinton	1707	KEN	=33N	+44B	+15N	−2B	+45N	−10B	3.5	18.5	21.0	10.50	2007	+45.2
22	Omondi Suleiman	1870	KEN	+52B	−7N	+25B	−5N	=27B	+57N	3.5	18.0	19.5	8.50	1869	+2.4
23	Muluda, Chahindi	1815	KEN	+65B	=4N	+17B	−11N	−43N	+45B	3.5	18.0	19.0	10.00	2002	+28.8
24	Ngugi Francis	1868	KEN	+64N	−1B	=48N	−15B	+56N	+40B	3.5	15.5	16.5	6.00	1867	-1.2
25	Christie, Karan Renold	1742	KEN	−3N	+62B	−22N	+63B	=33N	+44B	3.5	15.0	16.0	6.00	1824	+7.6
26	Kimani, Kimingi	1904	KEN	+60N	=29B	−40N	−14B	+42N	+55B	3.5	13.5	14.5	6.50	1790	-16.2
27	Kenneth Koome Kinoti	1717	KEN	+19N	+36B	−3N	−10B	=22N	=41B	3.0	19.5	22.0	10.00	1895	+27.2
28	Ngony, John Thon	1789	KEN	+37N	+43B	−1N	−12B	+35N	−9B	3.0	19.5	22.0	8.50	1901	+11.8
29	Mich Jayden	1633	KEN	+58B	=26N	−4B	=38N	+53B	−16N	3.0	17.5	19.0	6.75	1889	+74.0
30	Byawaka Alvin Herbert	1763	UGA	−2N	+69B	+58N	+33B	−15N	−14B	3.0	17.5	17.5	4.50	1864	+15.4
31	Nurmohamed, Sajid	1771	KEN	−9B	+51N	−20B	+50N	+60B	−17N	3.0	16.0	17.0	5.00	1866	+10.6
32	Mukisa Joshua	1783	UGA	F	−10B	+18N	−19B	+61N	+36B	3.0	16.0	16.0	8.00	1904	+16.6
33	Mugagga Allan	1916	UGA	=21B	=54N	+53B	−30N	=25B	=34N	3.0	15.0	17.0	8.00	1732	-28.2
34	Andiwoh, Moses	1808	KEN	=14N	−40B	+56N	−43B	+48N	=33B	3.0	14.0	15.5	7.00	1825	+2.8
35	Nicole Albright	1719	KEN	−12B	+63N	+39B	−49N	−28B	+50N	3.0	14.0	15.0	6.00	1754	+3.4
36	Chumba Allan	1883	KEN	+67B	−27N	=41B	+55N	=17B	−32N	3.0	14.0	15.0	5.75	1799	-14.2
37	Wafula Andrew Mangeni	0	KEN	−28B	F	=42N	+44B	=14N	+47B	3.0	14.0	14.0	7.75	1898	+24.4
38	Kaloki, Zuri	1868	KEN	+69N	=11B	−2N	=29B	−59N	+61B	3.0	14.0	14.0	4.50	1795	-12.4
39	Sagwa, Hillary	1823	KEN	+62N	−3B	−35N	+68B	−18N	+60B	3.0	14.0	14.0	2.00	1648	-23.2
40	Wanjiru Chrisphinus	1778	KEN	=17B	+34N	+26B	−4N	−13B	−24N	2.5	20.0	23.0	8.50	1877	+12.8
41	ISAIAH OTIENO OLUOCH	1751	KEN	−1N	+64B	=36N	=58B	−20B	=27N	2.5	17.0	18.0	4.75	1753	-1.2
42	Nyamiaka Haden	1794	KEN	+63B	−12N	=37B	−17N	−26B	+51N	2.5	16.5	17.5	4.50	1734	-8.2
43	Boera Felix	1932	KEN	F	−28N	=57B	+34N	+23B	−7N	2.5	15.5	15.5	7.25	1862	-9.8
44	Mulindi, Trevor	1868	KEN	=54B	−21N	+46B	−37N	+52B	−25N	2.5	14.5	16.5	5.50	1647	-26.6
45	Shile, Lenny Mataiga	1923	KEN	=46B	−55N	+54B	+57N	−21B	−23N	2.5	13.0	14.5	4.75	1666	-40.6
46	Kalema, Jackson Kioko	1712	KEN	=45N	−15B	−44N	−56B	+65B	+67N	2.5	11.5	12.5	3.25	1725	+0.6
47	Kagambi, Lawrence	1846	KEN	F	−5N	+61B	+20N	−3B	−37N	2.0	18.0	18.0	5.00	1912	+6.8
48	Mutuma Victor Mutugi	1742	KEN	−4B	+65N	=24B	−13N	−34B	=52N	2.0	17.5	18.5	3.75	1628	-35.6
49	Basangwa Johnson Michael	1874	UGA	F	−6B	+66N	+35B	−19N	−18B	2.0	16.5	16.5	4.00	1789	-12.4
50	Lutomia, Eric	1672	KEN	−10N	−19B	+69N	−31B	+62N	−35B	2.0	15.0	15.0	1.00	1523	-18.4
51	Jesse Jayden	1638	KEN	−8N	−31B	+64N	−18B	+63N	−42B	2.0	14.5	15.5	2.00	994	-48.0
52	Akama Job	1450	KEN	−22N	=56B	−14N	+69B	−44N	=48B	2.0	13.5	13.5	1.75	1621	+38.0
53	Marani, Caleb	1767	KEN	−6N	+68B	−33N	+62B	−29N	−54B	2.0	13.5	13.5	1.00	1528	-31.2
54	Nganga David	0	KEN	=44N	=33B	−45N	−61B	F	+53N	2.0	11.0	11.0	4.75	1761	+35.2
55	Kuguru, Harrison Githinji	1721	KEN	=15N	+45B	−19N	−36B	F	−26N	1.5	17.0	18.5	4.50	1781	+6.6
56	Danford, Kosi	1752	KEN	F	=52N	−34B	+46N	−24B	−58N	1.5	15.0	16.5	3.50	1598	-39.2
57	Omondi Abraham	1776	KEN	F	−8B	=43N	−45B	+68N	−22B	1.5	12.5	12.5	1.25	1684	-23.2
58	Ndegwa, Jackson Kamau	1897	KEN	−29N	F	−30B	=41N	F	+56B	1.5	11.5	11.5	2.75	1638	-27.8
59	Evans Lmelita Oloishuro	1749	KEN	−5B	F	F	−16N	+38B	−20N	1.0	16.0	16.0	3.00	1746	-1.2
60	Philip Marcellinus	1640	KEN	−26B	−20N	+65B	F	−31N	−39N	1.0	14.5	14.5	1.00	1553	-11.0
61	Riungu Kevin	1690	KEN	−16B	F	−47N	+54N	−32B	−38N	1.0	14.0	14.0	2.00	1565	-15.2
62	Maurice Omondi Aduda	0	KEN	−39B	−25N	+67B	−53N	−50B	−64N	1.0	11.5	12.5	1.00	1487	-45.6
63	Robernal Simard	0	KEN	−42N	−35B	F	−25N	−51B	+69N	1.0	11.0	11.0	0.00	1430	0.0
64	Ethan Kiptoo Terigin	0	KEN	−24B	−41N	−51B	−65N	F	+62B	1.0	10.0	10.0	1.00	901	0.0
65	Mugwanja, Nathaniel	0	KEN	−23N	−48B	−60N	+64B	−46N	F	1.0	10.0	10.0	1.00	928	-21.2
66	Boniface Wagoya	1766	KEN	−7B	+67N	−49B	F	F	F	1.0	7.5	7.5	1.00	1750	-5.6
67	Mwanga Makokha	1632	KEN	−36N	−66B	−62N	F	+69B	−46B	1.0	7.5	7.5	0.00	1510	-25.6
68	Chege, Samuel	1542	KEN	−13B	−53N	F	−39N	−57B	F	0.0	11.5	11.5	0.00	1009	-14.4
69	Jayden Hiyari Mwamtsi	1447	KEN	−38B	−30N	−50B	−52N	−67N	−63B	0.0	11.0	12.0	0.00	873	-48.0
70	Walela, Austin	1875	KEN	F	−9N	F	F	F	F	0.0	6.0	6.0	0.00	1352	-3.4

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Mich JaydenKEN
+74.0
3.0 pts · #28
2Ngugi, ClintonKEN
+45.2
3.5 pts · #24
3Lukoko MosesKEN
+38.4
4.0 pts · #12

Top rating losers

1Jesse JaydenKEN
-48.0
2.0 pts · #70
2Jayden Hiyari MwamtsiKEN
-48.0
0.0 pts · #67
3Maurice Omondi AdudaKEN
-45.6
1.0 pts · #64

Biggest upsets

R3+375 Elo gap
Muluda, Chahindi1815 beat CMGong Thon Gong2190
R3+266 Elo gap
Ngugi, Clinton1707 beat Mabior Anyuat Mabior1973
R1+264 Elo gap
Mich Jayden1633 beat Ndegwa, Jackson Kamau1897