Colombo District Youth Chess Championship 2025 - Under 12 Years Girls

Open SwissStandard

47 players participated in this 6-round tournament, held from 22 Aug 2025 to 24 Aug 2025 in Colombo, Sri Lanka. Top 10 Elo average was 1534, and top seed was Aara Nethumsa Jothimuni Gunaratne (🇱🇰 SRI, 1659).

K G Dewli Abinadi Chanseya (🇱🇰 SRI, 1651) won with 5.5/6, ahead of Vinudi Ayansa Withana (5.0) and W K Risali Dasanya (5.0). Chanseya broke clear in the final round.

Location

🇱🇰Colombo, Sri Lanka

Dates

22 Aug 2025 → 24 Aug 2025

Time control

Standard: 90 minutes with 30 second increment from move 1

System

Swiss · 6 rounds

Top seed

🇱🇰Aara Nethumsa Jothimuni Gunaratne1659

Avg top 10

1,534

Participants

Federations · 1 represented

🇱🇰Sri Lanka×37

Top 3

🥇
K G Dewli Abinadi Chanseya
🇱🇰SRI·1651
5.5pts·1780perf+16.8
🥈
Vinudi Ayansa Withana
🇱🇰SRI·1456
5.0pts·1644perf+29.6
🥉
W K Risali Dasanya
🇱🇰SRI·1538
5.0pts·1744perf+21.2

How it unfolded

Top 6 · 6 rounds

K G Dewli Abinadi Chanseya led from R4; +0.5-point edge over the runner-up.

Co-leaders

Chanseya5.5Withana5Dasanya5Rathnayake5Wanigasooriya5Wijesinghe4.5

R4–R6 · LEAD HELD

K G Dewli Abinadi Chanseya held the sole lead from R4 through R6 without losing it.

R1–R4 · WIN STREAK

K G Dewli Abinadi Chanseya won 4 in a row (R1–R4).

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1K G Dewli Abinadi Chanseya	*	—	½	—
2Vinudi Ayansa Withana	—	*	—	½
3W K Risali Dasanya	½	—	*	—
4Chanuthi Thenulima Rathnayake	—	½	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	Pts	Bu C1	Bu	SB	Perf	Δ
1	Chanseya, K G Dewli Abinadi	1651	SRI	+29N	+22B	+10N	+21B	=3N	+7B	5.5	20.5	23.5	21.00	1780	+16.8
2	Withana, Vinudi Ayansa	1456	SRI	+25N	+31B	=4N	+20B	+11N	=6B	5.0	20.5	23.5	18.75	1644	+29.6
3	Dasanya, W K Risali	1538	SRI	+40N	+14B	=20N	+18B	=1B	+12N	5.0	20.5	23.0	18.50	1744	+21.2
4	Rathnayake, Chanuthi Thenulima	1550	SRI	+38B	+46N	=2B	=5N	+23B	+13N	5.0	20.0	21.0	16.00	1470	-16.4
5	Wanigasooriya, Akshana Randinee	1485	SRI	+43N	+41B	+19N	=4B	=6N	+27B	5.0	18.0	20.0	15.25	1569	+9.2
6	Wijesinghe, Lithuli Vidasna	1515	SRI	+12B	+27N	+13B	=8N	=5B	=2N	4.5	22.5	25.5	18.25	1478	-6.0
7	Panagoda, Chithuli Damsiluni	1499	SRI	+37B	=15N	+35B	+33N	+8B	−1N	4.5	20.0	22.5	15.00	1573	+8.4
8	Jithuli, KV Thilanya	1500	SRI	+44N	+45B	+34N	=6B	−7N	+20B	4.5	17.5	18.5	11.75	1311	-18.8
9	Gunaratne, Aara Nethumsa Jothimuni	1659	SRI	+28B	=30N	−21B	+35N	+26B	+18N	4.5	16.5	19.5	14.50	2251	+12.4
10	Perera, P Hesali Santhushya	1484	SRI	+47B	+32N	−1B	=16B	=22N	+28N	4.0	19.0	19.0	9.75	851	-11.2
11	Bandara, Irushi Tharindya	1420	SRI	+36B	−21N	+37N	+25B	−2B	+29N	4.0	18.0	20.5	12.00	659	-17.6
12	Madhubhashi, M D Gaurangie A	0	SRI	−6N	+?B	+31N	+?B	+19N	−3B	4.0	16.0	16.0	6.50	727	0.0
13	Abeykoon, A M Yenuli Dulansa W	0	SRI	+?N	+42B	−6N	+?B	+16N	−4B	4.0	15.5	15.5	6.00	769	0.0
14	Janithya, Prabashi	0	SRI	+24B	−3N	−?B	+?N	+39B	+32N	4.0	14.0	14.0	9.00	741	0.0
15	Sayara, W A Jithuli	0	SRI	+?B	=7B	−18N	=?N	+?B	+30N	4.0	11.0	11.0	5.25	1328	0.0
16	Senudima, Resandi	0	SRI	=?B	+?N	+30B	=10N	−13B	+?N	4.0	11.0	11.0	5.00	1468	0.0
17	Premathunga, Dinuri Sasanya	0	SRI	=?B	=?N	−27B	+46N	+34B	+?B	4.0	7.0	7.0	4.00	1412	0.0
18	Neththi Kumarage, Windithyaa Lina	1448	SRI	+39B	=33N	+15B	−3N	+24B	−9B	3.5	20.0	22.5	11.50	766	-27.6
19	Chandrasiri, Dahamdee Kalanya	0	SRI	+23B	+?N	−5B	+32N	−12B	=25N	3.5	19.0	19.0	8.25	681	0.0
20	Balasooriya, B M Thenuji Ruhansa	1432	SRI	+?N	+?B	=3B	−2N	+33B	−8N	3.5	17.5	17.5	5.50	1225	0.0
21	Ushani, J K M Inethma	0	SRI	+?B	+11B	+9N	−1N	−27B	=?N	3.5	17.0	17.0	8.50	1538	0.0
22	Hesanga, I W Hasasi	0	SRI	+?B	−1N	=26B	+?N	=10B	=23N	3.5	16.5	16.5	5.50	1375	0.0
23	Sehasna, Dewmini	0	SRI	−19N	+28N	+45B	+?B	−4N	=22B	3.5	16.0	16.0	5.75	824	0.0
24	FIDE 80832768	0	—	−14N	+40B	+45N	=29B	−18N	+37B	3.5	15.5	16.5	7.50	651	0.0
25	Peiris, Sanuji Umaya	0	SRI	−2B	+?N	+?B	−11N	+?N	=19B	3.5	12.5	12.5	1.75	639	0.0
26	Susavi, N Yenulya Risindi	0	SRI	=?N	=?B	=22N	+?B	−9N	+38N	3.5	10.5	10.5	4.25	790	0.0
27	Korale Vithanalage, Daphne Alina	0	SRI	F	−6B	+17N	+41B	+21N	−5N	3.0	19.0	19.0	9.50	697	0.0
28	Lithara, Sethuni	0	SRI	−9N	−23B	+?N	+42B	+31N	−10B	3.0	17.0	17.0	5.00	737	0.0
29	Liyanage, Chenulya Sayumdee	0	SRI	−1B	+?N	+?B	=24N	=30B	−11B	3.0	16.0	16.0	3.25	735	0.0
30	FIDE 80869688	0	—	+?N	=9B	−16N	+?B	=29N	−15B	3.0	15.5	15.5	3.75	1590	0.0
31	Paul, Tharuki Gethmini	0	SRI	+?B	−2N	−12B	+45N	−28B	+45N	3.0	14.0	14.0	2.00	659	0.0
32	FIDE 80881998	0	—	+?N	−10B	+?N	−19B	+44N	−14B	3.0	13.5	13.5	2.00	684	0.0
33	Thimanya, J? P? Senumi	0	SRI	+?N	=18B	+?N	−7B	−20N	=?B	3.0	11.5	11.5	1.75	1280	0.0
34	Meegoda, M D Vinuthi Siyansa	0	SRI	+?B	+?N	−8B	F	−17N	+43B	3.0	10.5	10.5	2.00	695	0.0
35	FIDE 80834418	0	—	=?N	+?B	−7N	−9B	+?N	=?N	3.0	9.0	9.0	0.00	743	0.0
36	FIDE 80881742	0	—	−11N	−?B	+?N	+?B	−?N	+46B	3.0	5.0	5.0	1.00	619	0.0
37	Nanawaththa, H A Thuhansa Kithnar	0	SRI	−7N	+?N	−11B	=?B	+?N	−24N	2.5	12.0	12.0	0.00	657	0.0
38	Loku Katagoda, W?a?s?s?ranthuli	0	SRI	−4N	+?B	−41N	=?B	+?N	−26B	2.5	10.5	10.5	0.00	824	0.0
39	Perera, Bandara Lokuge Ovini Dams	0	SRI	−18N	+?B	−?N	+45B	−14N	=?B	2.5	8.5	8.5	1.00	651	0.0
40	FIDE 80881726	0	—	−3B	−24N	+?B	−?N	+?B	=?N	2.5	8.5	8.5	0.00	741	0.0
41	Sirimanna, Weerasekarage Sithuki	0	SRI	+?B	−5N	+38B	−27N	−?B	−?N	2.0	10.5	10.5	2.50	681	0.0
42	FIDE 80848214	0	—	+?B	−13N	−?B	−28N	+45B	−?N	2.0	8.0	8.0	1.00	612	0.0
43	FIDE 80803253	0	—	−5B	+?N	F	−?N	+?B	−34N	2.0	8.0	8.0	0.00	681	0.0
44	Methusari, K G Yugeethma	0	SRI	−8B	F	−?N	+?N	−32B	+?B	2.0	7.5	7.5	0.00	695	0.0
45	FIDE 80881718	0	—	+?B	−8N	−24B	−39N	F	−31B	1.0	13.5	13.5	0.00	695	0.0
46	Hettiarachci, Punsara Lakshi	0	SRI	+?N	−4B	−?N	−17B	F	−36N	1.0	12.0	12.0	0.00	824	0.0
47	FIDE 80881734	0	—	−10N	F	F	F	F	F	0.0	4.0	4.0	0.00	684	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Withana, Vinudi AyansaSRI
+29.6
5.0 pts · #3
2Dasanya, W K RisaliSRI
+21.2
5.0 pts · #6
3Chanseya, K G Dewli AbinadiSRI
+16.8
5.5 pts · #2

Top rating losers

1Neththi Kumarage, Windithyaa LinaSRI
-27.6
3.5 pts · #45
2Jithuli, KV ThilanyaSRI
-18.8
4.5 pts · #13
3Bandara, Irushi TharindyaSRI
-17.6
4.0 pts · #35