Kiambu Open Grand Prix Chess Championship Ladies Section - 2025

Open SwissStandard

42 players participated in this 6-round tournament, held from 10 May 2025 to 11 May 2025 in Kiambu, Kenya. 3 titled players. Top 10 Elo average was 1681, and top seed was Joyce Nyaruai Ndirangu (🇰🇪 KEN, WFM, 1933).

Jully Mutisya (🇰🇪 KEN, WCM, 1813) won with 5.0/6, ahead of Gikandi Bernice Wambui (5.0) and Kimani wanjiru (4.5). Mutisya shared the lead from round 4, winning on tie-break.

The biggest upset came in round 5: Gikandi Bernice Wambui (1509) beat Joyce Nyaruai Ndirangu (WFM, 1933), a +424-point gap.

Location

🇰🇪Kiambu, Kenya

Dates

10 May 2025 → 11 May 2025

Time control

Standard: 90 minutes for the whole game

System

Swiss · 6 rounds

Top seed

🇰🇪WFMJoyce Nyaruai Ndirangu1933

Avg top 10

1,681

Participants

Titled players · 3

WFM×1

WCM×2

Federations · 1 represented

🇰🇪Kenya×35

Top 3

🥇
WCMJully Mutisya
🇰🇪KEN·1813
5.0pts·1869perf+8.2
🥈
Gikandi Bernice Wambui
🇰🇪KEN·1509
5.0pts·1889perf+92.4
🥉
Kimani wanjiru
🇰🇪KEN·1601
4.5pts·1784perf+28.2

How it unfolded

Top 6 · 6 rounds

Tight race until R5; 2 players tied at 5.0/6, decided on Buchholz. Title race narrowed from 3 co-leaders at R4 to 2 at the finish.

Co-leaders

Mutisya5Wambui5wanjiru4.5Albright4.5Karanja4.5Kariuki4.5

R5 · LEADER CHANGE11 May

WCM Jully Mutisya takes the sole lead (4.5/5).

R6 · TIEBREAK CLUSTER

2 players finish on 5.0/6. Mutisya takes the title on Buchholz Cut1 (20.0).

WIN STREAKS · 2 top finishers

WCM Jully Mutisya 3 wins (R3–R5)Gikandi Bernice Wambui 5 wins (R2–R6)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1WCMJully Mutisya	*	—	½	½
2Gikandi Bernice Wambui	—	*	—	—
3Kimani wanjiru	½	—	*	½
4Nicole Albright	½	—	½	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	Pts	Bu C1	Bu	SB	Perf	Δ
1	Mutisya, JullyWCM	1813	KEN	+5B	=3N	+25N	+12B	+24N	=4B	5.0	20.0	22.5	18.00	1869	+8.2
2	Gikandi Bernice Wambui	1509	KEN	−8B	+26N	+9B	+29N	+13N	+24B	5.0	16.5	18.5	14.50	1889	+92.4
3	Kimani wanjiru	1601	KEN	+6N	=1B	+29N	+10B	=4B	=5N	4.5	22.5	24.5	17.50	1784	+28.2
4	Nicole Albright	1699	KEN	+14N	+10B	+12N	=24B	=3N	=1N	4.5	21.0	23.5	17.50	1838	+21.8
5	Kariuki, Silvia Wahito	1533	KEN	−1N	+27B	+18N	+21B	+11N	=3B	4.5	19.5	21.5	14.25	1740	+27.0
6	Kuka Riziki	1493	KEN	−3B	+20N	+8B	+28N	=7N	+25B	4.5	18.5	20.5	13.75	1664	+36.4
7	Karanja, Ether	1578	KEN	+36B	−24N	+30B	+17N	=6B	+15N	4.5	15.5	16.5	11.75	1686	+16.2
8	Ingado, Mercy	1681	KEN	+2N	−11B	−6N	+31B	+17N	+22B	4.0	19.5	21.5	13.00	1595	-12.4
9	Onyango Shirlyn Gathoni	1570	KEN	−11N	+15B	−2N	+38B	+21N	+19B	4.0	18.5	19.5	10.50	1481	-19.2
10	Jasmine Akinyi Ochieng	1600	KEN	+33B	−4N	+19B	−3N	+28B	+16N	4.0	17.0	19.0	10.00	1568	-7.2
11	Gilana Angel Muthoni	1453	KEN	+9B	+8N	−24B	+26N	−5B	+35N	4.0	17.0	18.5	11.50	1616	+34.0
12	Nashipae BellaWCM	1645	KEN	+19B	+30N	−4B	−1N	+29B	+27N	4.0	16.5	18.5	9.00	1717	+23.6
13	Ndirangu, Joyce NyaruaiWFM	1933	KEN	F	+36N	+28B	+27N	−2B	+30N	4.0	12.0	12.0	7.00	1758	-11.8
14	Muthoni, Vivian	1530	KEN	−4B	+17N	=16B	+18N	−15B	+31N	3.5	17.0	19.0	9.50	1553	+3.2
15	Waruguru Joy	1452	KEN	+42B	−9N	+37B	=16N	+14N	−7B	3.5	16.0	16.0	6.00	1434	-2.4
16	Milan Suter	0	KEN	=18N	+31B	=14N	=15B	=25N	−10B	3.0	16.5	18.5	8.25	1476	0.0
17	Wamaitha Rania	1405	KEN	+34N	−14B	+32N	−7B	−8B	+26N	3.0	16.0	18.0	6.00	797	-30.4
18	Arianne Hera Ngani	1428	KEN	=16B	+35N	−5B	−14B	=31N	+28N	3.0	15.0	16.5	6.00	1224	-28.8
19	Muhanji Tsisika	1508	KEN	−12N	+32B	−10N	+41B	+39B	−9N	3.0	15.0	15.0	3.00	805	-44.0
20	Sesenet Moisari Kantai	0	KEN	+21N	−6B	−27N	−23B	+38N	+32B	3.0	14.5	15.5	6.00	777	0.0
21	FIDE 10885439	0	—	−20B	+41N	+40B	−5N	−9B	+39N	3.0	13.5	13.5	2.00	751	0.0
22	McKenzie Chanel	1513	KEN	F	F	+36B	+37N	+26B	−8N	3.0	11.5	12.5	4.00	1572	+4.0
23	FIDE 10817239	0	—	−26B	−37N	+35B	+20N	−30B	+40N	3.0	9.5	10.5	5.50	669	0.0
24	Kaburo Winnie	1685	KEN	F	+7B	+11N	=4N	−1B	−2N	2.5	23.0	26.0	10.75	1610	-18.0
25	Kungu Nicole Wanjiru	1435	KEN	+38N	F	−1B	+39N	=16B	−6N	2.5	14.5	14.5	3.50	854	-18.8
26	Keisha Sifa Gitau	0	KEN	+23N	−2B	+34N	−11B	−22N	−17B	2.0	18.0	20.0	5.00	674	0.0
27	Kamoni Elsie Wambui	1427	KEN	F	−5N	+20B	−13B	+32N	−12B	2.0	17.5	18.5	5.00	904	-54.4
28	Jakharia Siddhi Vishal	0	KEN	+39B	+33N	−13N	−6B	−10N	−18B	2.0	17.5	18.5	3.00	1344	0.0
29	Gichuga Wanjiru Wanjiku	0	KEN	+40N	F	−3B	−2B	−12N	+37B	2.0	17.5	18.5	2.00	786	-32.4
30	Njeri, Maureen Kirigo	1469	KEN	F	−12B	−7N	+34B	+23N	−13B	2.0	17.5	17.5	5.00	898	-14.0
31	Atarah Wright	1426	KEN	=35B	−16N	+33B	−8N	=18B	−14B	2.0	15.5	17.0	4.25	1439	0.0
32	FIDE 10899375	0	—	+41B	−19N	−17B	+40N	−27B	−20N	2.0	12.0	12.0	1.00	724	0.0
33	Salma Nkatha Mwenda	1488	KEN	−10N	−28B	−31N	+36B	−35N	+41B	2.0	10.5	10.5	1.00	1372	-14.8
34	Nikisha Makena	0	KEN	−17B	+42N	−26B	−30N	−36N	+38B	2.0	9.0	9.0	1.00	645	0.0
35	Mutua Angel	0	KEN	=31N	−18B	−23N	F	+33B	−11B	1.5	14.0	14.0	3.00	1356	0.0
36	Oluchiri Jadarudo Achieng	1462	KEN	−7N	−13B	−22N	−33N	+34B	F	1.0	15.5	15.5	2.00	809	-52.8
37	FIDE 10836543	0	—	F	+23B	−15N	−22B	F	−29N	1.0	13.5	13.5	3.00	663	0.0
38	Kendi Ella Adana	0	KEN	−25B	−39N	+42B	−9N	−20B	−34N	1.0	12.5	12.5	0.00	693	0.0
39	FIDE 10885145	0	—	−28N	+38B	F	−25B	−19N	−21B	1.0	11.5	11.5	1.00	662	0.0
40	FIDE 10881220	0	—	−29B	F	−21N	−32B	+41N	−23B	1.0	10.0	10.0	0.00	606	0.0
41	FIDE 10898263	0	—	−32N	−21B	F	−19N	−40B	−33N	0.0	11.0	11.0	0.00	687	0.0
42	Keli Tumi	0	KEN	−15N	−34B	−38N	F	F	F	0.0	7.5	7.5	0.00	652	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Gikandi Bernice WambuiKEN
+92.4
5.0 pts · #5
2Kuka RizikiKEN
+36.4
4.5 pts · #13
3Gilana Angel MuthoniKEN
+34.0
4.0 pts · #15

Top rating losers

1Kamoni Elsie WambuiKEN
-54.4
2.0 pts · #32
2Oluchiri Jadarudo AchiengKEN
-52.8
1.0 pts · #38
3Muhanji TsisikaKEN
-44.0
3.0 pts · #42

Biggest upsets

R5+424 Elo gap
Gikandi Bernice Wambui1509 beat WFMNdirangu, Joyce Nyaruai1933
R2+228 Elo gap
Gilana Angel Muthoni1453 beat Ingado, Mercy1681
R3+188 Elo gap
Kuka Riziki1493 beat Ingado, Mercy1681