2025 Etienne Lewis CLOSED Chess Tournament (U16)

Open SwissStandard

50 players participated in this 7-round tournament, held from 08 Aug 2025 to 10 Aug 2025 in Pretoria, South Africa. Top 10 Elo average was 1640, and top seed was Divine Songo (🇿🇦 RSA, 1833).

Zander Nicolaas Slabbert (🇿🇦 RSA, 1594) won with 7.0/7, ahead of Shyam Radia (6.0) and Viraak Dharampall (5.5). Slabbert shared the lead from round 4 and won solo starting round 5.

The biggest upset came in round 4: Shyam Radia (1585) beat Divine Songo (1833), a +248-point gap.

Location

🇿🇦Pretoria, South Africa

Dates

08 Aug 2025 → 10 Aug 2025

Time control

Standard: 60 minutes with 30 seconds increment from move 1

System

Swiss · 7 rounds

Top seed

🇿🇦Divine Songo1833

Avg top 10

1,640

Participants

Federations · 1 represented

🇿🇦South Africa×37

Top 3

🥇
Zander Nicolaas Slabbert
🇿🇦RSA·1594
7.0pts·2441perf+112.0
🥈
Shyam Radia
🇿🇦RSA·1585
6.0pts·1820perf+66.8
🥉
Viraak Dharampall
🇿🇦RSA·1806
5.5pts·1728perf-13.6

How it unfolded

Top 6 · 7 rounds

Zander Nicolaas Slabbert led from R5; +1.0-point edge over the runner-up. Title race converged from 2 co-leaders at R4 to 1 by R5.

Co-leaders

Slabbert7Radia6Dharampall5.5Songo5Bain5Rautenbach5

R5–R7 · LEAD HELD

Zander Nicolaas Slabbert never relinquished the lead after R5; final gap +1.0 over the runner-up.

R5 · HEAD-TO-HEAD · WINNER VS 2ND

Zander Nicolaas Slabbert beat Shyam Radia (White).

WIN STREAKS · 2 top finishers

Zander Nicolaas Slabbert 7 wins (R1–R7)Shyam Radia 4 wins (R1–R4)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Zander Nicolaas Slabbert	*	1	—	1
2Shyam Radia	0	*	—	1
3Viraak Dharampall	—	—	*	0
4Divine Songo	0	0	1	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	R6	R7	Pts	Bu C1	Bu	SB	Perf	Δ
1	Slabbert, Zander Nicolaas	1594	RSA	+30B	+29N	+13B	+5N	+2B	+11N	+4B	7.0	27.5	30.5	30.50	2441	+112.0
2	Radia, Shyam	1585	RSA	+32N	+15B	+33N	+4B	−1N	+9B	+8N	6.0	28.5	31.5	24.50	1820	+66.8
3	Dharampall, Viraak	1806	RSA	+18N	+14B	=10N	+7B	−4N	+22B	+13N	5.5	26.5	30.0	22.75	1728	-13.6
4	Songo, Divine	1833	RSA	+24B	+8N	+6B	−2N	+3B	+5N	−1N	5.0	33.5	37.0	24.00	1756	-18.8
5	Bain, Michael	1630	RSA	+38N	+9B	+12N	−1B	+13N	−4B	+14N	5.0	29.0	32.0	20.00	1697	+24.4
6	Mmakou, Lesedi	1628	RSA	+34N	+20B	−4N	+10B	−9N	+15B	+21N	5.0	26.0	29.0	19.50	1648	+8.0
7	Rautenbach, Helen Christine	1660	RSA	+35B	+27N	+16B	−3N	−8B	+25N	+19B	5.0	25.5	28.5	18.00	1661	+1.2
8	Kock, Luca	0	RSA	+42N	−4B	+30N	+41B	+7N	+12B	−2B	5.0	25.5	27.5	16.50	1647	+35.2
9	Seloana, Kamogelo	1453	RSA	+37B	−5N	+35B	+23N	+6B	−2N	=11B	4.5	27.0	30.0	16.75	1593	+37.6
10	De Waal, Nadine	1479	RSA	+23B	+21N	=3B	−6N	+31B	−19N	+22B	4.5	25.5	28.5	16.75	1628	+47.2
11	Khumalo, Siyabonga Samuel Khutso	1613	RSA	+28N	−33B	+22N	+32B	+14N	−1B	=9N	4.5	25.5	28.5	16.25	1236	-56.4
12	Strauss, Lune	1511	RSA	+31B	+25N	−5B	=16N	+17B	−8N	+24B	4.5	25.0	28.0	16.00	1610	+38.0
13	Feuth, Alexander	0	RSA	+41N	+43B	−1N	+34B	−5B	+27N	−3B	4.0	26.0	28.0	10.50	1508	-15.2
14	Horn, Renier	0	RSA	+36B	−3N	+24B	+25N	−11B	+31N	−5B	4.0	25.0	28.0	13.00	1585	0.0
15	Karsten, Chay	1457	RSA	+44B	−2N	−23B	+35N	+18B	−6N	+31B	4.0	24.5	26.5	12.00	1364	-18.4
16	Ramonyai, Maribe	1519	RSA	+50N	+17B	−7N	=12B	−22N	=23B	+29B	4.0	23.5	23.5	11.00	1544	+5.2
17	Theron, Lydia	1480	RSA	=26B	−16N	+40B	=18N	−12N	+34B	+30N	4.0	22.0	24.5	12.25	1365	-17.6
18	Louw, Nova	0	RSA	−3B	+40N	=36B	=17B	−15N	+42B	+33N	4.0	22.0	24.0	11.00	1469	0.0
19	Koen, Kaylee-Jane	1494	RSA	−43N	+42B	−34N	+28B	+30N	+10B	−7N	4.0	21.0	23.0	13.00	1401	-15.6
20	FIDE 14395959	0	—	+48B	−6N	−31B	+37N	=23B	=24N	+35B	4.0	21.0	22.0	10.50	1342	0.0
21	Botha, Robert	1480	RSA	+46N	−10B	F	+39B	+34N	+29N	−6B	4.0	20.5	20.5	11.00	1388	-14.8
22	Hlwathika, Thandolwenkosi	0	RSA	=40B	+26N	−11B	+36N	+16B	−3N	−10N	3.5	25.0	27.5	11.75	1411	0.0
23	Ramonyai, Motshabo	1528	RSA	−10N	+45B	+15N	−9B	=20N	=16N	=27B	3.5	24.5	26.5	11.75	1398	-36.0
24	Van Der Walt, Henrico	1512	RSA	−4N	+39B	−14N	+43B	+33N	=20B	−12N	3.5	23.5	25.5	10.00	1484	-4.8
25	Maponya, Warona	1486	RSA	+45N	−12B	+43N	−14B	+41N	−7B	=26N	3.5	21.0	23.0	7.75	786	-29.2
26	De Meyer, Marthinus	0	RSA	=17N	−22B	+44B	−29N	=36B	+38N	=25B	3.5	20.0	22.0	10.25	1501	0.0
27	Naude, Johan	1444	RSA	+47N	−7B	−41N	+42B	+32N	−13B	=23N	3.5	19.5	21.0	8.25	1310	-17.6
28	FIDE 14377888	0	—	−11B	−44N	+49B	−19N	=47B	+40N	+36B	3.5	17.5	18.5	7.25	755	0.0
29	Raubenheimer, Charne	0	RSA	+39N	−1B	−32N	+26B	+38N	−21B	−16N	3.0	24.5	27.5	9.50	1326	0.0
30	FIDE 534025758	0	—	−1N	+47B	−8B	+50N	−19B	+37N	−17B	3.0	24.5	24.5	4.50	708	0.0
31	Adamson, Amani	1497	RSA	−12N	+50B	+20N	+33B	−10N	−14B	−15N	3.0	24.0	24.0	7.00	1289	-42.0
32	Mcphail, Matthew	0	RSA	−2B	+37N	+29B	−11N	−27B	−36N	+44B	3.0	23.0	25.0	8.00	747	0.0
33	Nkwadi, Karabo	1483	RSA	+49B	+11N	−2B	−31N	−24B	+41N	−18B	3.0	23.0	24.0	7.50	1354	-26.4
34	Hlatshwayo, Qhawe	1444	RSA	−6B	+49N	+19B	−13N	−21B	−17N	+46B	3.0	23.0	24.0	7.00	1288	-36.4
35	FIDE 534017429	0	—	−7N	+46B	−9N	−15B	+45N	+39B	−20N	3.0	22.5	24.5	7.00	723	0.0
36	Jacobs, Inge	0	RSA	−14N	+38B	=18N	−22B	=26N	+32B	−28N	3.0	21.5	24.5	9.75	1502	0.0
37	FIDE 534013385	0	—	−9N	−32B	+45N	−20B	+43N	−30B	+42N	3.0	18.5	20.5	6.00	652	0.0
38	Bogaard, Franco	1482	RSA	−5B	−36N	+47B	+44N	−29B	−26B	+48N	3.0	18.0	19.0	4.50	818	-12.8
39	Le Roux, Reuben	0	RSA	−29B	−24N	+48B	−21N	+50B	−35N	+41B	3.0	16.5	16.5	3.00	689	0.0
40	Montsho, Reatlegile	0	RSA	=22N	−18B	−17N	−47N	+46B	−28B	+43N	2.5	19.0	20.5	5.75	678	0.0
41	Loubser, Lilienne	0	RSA	−13B	+48N	+27B	−8N	−25B	−33B	−39N	2.0	22.0	23.0	4.50	1247	0.0
42	FIDE 534017640	0	—	−8B	−19N	+46B	−27N	+44B	−18N	−37B	2.0	21.5	23.5	4.00	668	0.0
43	Du Toit, Leone	0	RSA	+19B	−13N	−25B	−24N	−37B	+47N	−40B	2.0	20.5	22.0	5.50	1317	0.0
44	FIDE 534013415	0	—	−15N	+28B	−26N	−38B	−42N	+49B	−32N	2.0	19.0	20.0	4.50	670	0.0
45	FIDE 534012141	0	—	−25B	−23N	−37B	+49N	−35B	−48N	+47B	2.0	15.5	16.5	2.50	706	0.0
46	FIDE 534012168	0	—	−21B	−35N	−42N	+48B	−40N	+50B	−34N	2.0	15.5	15.5	1.00	660	0.0
47	FIDE 14394588	0	—	−27B	−30N	−38N	+40B	=28N	−43B	−45N	1.5	17.5	19.5	4.25	663	0.0
48	FIDE 14379660	0	—	−20N	−41B	−39N	−46N	F	+45B	−38B	1.0	16.0	17.0	2.00	682	0.0
49	FIDE 534029508	0	—	−33N	−34B	−28N	−45B	F	−44N	+50N	1.0	14.5	14.5	0.00	661	0.0
50	FIDE 534013733	0	—	−16B	−31N	F	−30B	−39N	−46N	−49B	0.0	16.0	16.0	0.00	706	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Slabbert, Zander NicolaasRSA
+112.0
7.0 pts · #1
2Radia, ShyamRSA
+66.8
6.0 pts · #3
3De Waal, NadineRSA
+47.2
4.5 pts · #8

Top rating losers

1Khumalo, Siyabonga Samuel KhutsoRSA
-56.4
4.5 pts · #32
2Adamson, AmaniRSA
-42.0
3.0 pts · #28
3Hlatshwayo, QhaweRSA
-36.4
3.0 pts · #20

Biggest upsets

R4+248 Elo gap
Radia, Shyam1585 beat Songo, Divine1833
R7+239 Elo gap
Slabbert, Zander Nicolaas1594 beat Songo, Divine1833
R5+175 Elo gap
Seloana, Kamogelo1453 beat Mmakou, Lesedi1628