2026 Piet Robbertse Open Chess Tournament (C)

Open SwissStandard

33 players participated in this 5-round tournament, held from 07 Feb 2026 to 08 Feb 2026 in Pretoria, South Africa. Top 10 Elo average was 1459, and top seed was Thandolwenkosi Hlwathika (🇿🇦 RSA, 1515).

Dennis Simbarashe Moyo (🇿🇦 RSA, 0) won with 5.0/5, ahead of Carla Theron (4.0) and Neo Seitei (4.0). Moyo broke clear in the final round.

The biggest upset came in round 5: Neo Seitei (1402) beat Thandolwenkosi Hlwathika (1515), a +113-point gap.

Location

🇿🇦Pretoria, South Africa

Dates

07 Feb 2026 → 08 Feb 2026

Time control

Standard: 60 minutes with 30 seconds increment from move 1

System

Swiss · 5 rounds

Top seed

🇿🇦Thandolwenkosi Hlwathika1515

Avg top 10

1,459

Participants

Federations · 1 represented

🇿🇦South Africa×18

Top 3

🥇
Dennis Simbarashe Moyo
🇿🇦RSA
5.0pts·1513perf0.0
🥈
Carla Theron
🇿🇦RSA·1438
4.0pts·2241perf+60.8
🥉
Neo Seitei
🇿🇦RSA·1402
4.0pts·1476perf+6.0

How it unfolded

Top 6 · 5 rounds

Dennis Simbarashe Moyo 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

Moyo5Theron4Montsho4Mashigo4Theron4Seitei4

R5–R5 · LEAD HELD

Dennis Simbarashe Moyo never relinquished the lead after R5; final gap +1.0 over the runner-up.

R5 · HEAD-TO-HEAD · WINNER VS 2ND

Dennis Simbarashe Moyo beat Carla Theron (White).

WIN STREAKS · 2 top finishers

Dennis Simbarashe Moyo 5 wins (R1–R5)Carla Theron 4 wins (R1–R4)

Key matchups · top 4

Head-to-head between the four finishers

Player	1	2	3	4
1Dennis Simbarashe Moyo	*	1	—	—
2Carla Theron	0	*	—	—
3Reatlegile Montsho	—	—	*	—
4Thabo Prince Mashigo	—	—	—	*

Grille américaine

#	Player	Elo	Fed	R1	R2	R3	R4	R5	Pts	Bu C1	Bu	SB	Perf	Δ
1	Moyo, Dennis Simbarashe	0	RSA	+?B	+?N	+?N	+7B	+2B	5.0	7.5	7.5	7.50	1513	0.0
2	Theron, Carla	1438	RSA	+9N	+18B	+10N	+3B	−1N	4.0	15.0	17.0	12.00	2241	+60.8
3	Seitei, Neo	1402	RSA	+13N	+21B	+8N	−2N	+14B	4.0	12.5	14.5	10.50	1476	+6.0
4	Theron, Lydia	1421	RSA	−5B	+33N	+17B	+14N	+9B	4.0	12.0	12.0	8.00	2291	+48.0
5	Mashigo, Thabo Prince	0	RSA	+4N	−?B	+21N	+20B	+8N	4.0	11.0	11.0	11.00	1452	0.0
6	Montsho, Reatlegile	0	RSA	+22N	+28B	=7N	+15N	=?B	4.0	9.5	9.5	7.75	1486	0.0
7	Lodi, Isagoentle	1491	RSA	+29B	+12N	=6B	−1N	+20B	3.5	14.0	15.5	8.50	2255	+18.0
8	Erasmus, Trisa Marie	0	RSA	+11B	+?N	−3B	+10N	−5B	3.0	14.0	14.0	6.00	1453	0.0
9	Kruger, Hendrik	1466	RSA	−2B	+11N	+24B	+19B	−4N	3.0	13.0	15.0	7.00	628	-44.4
10	Vorster, Wian	1433	RSA	+31B	+19N	−2B	−8B	+18N	3.0	11.0	12.0	5.00	637	-20.0
11	FIDE 534040439	0	—	−8N	−9B	+27N	+28B	+23N	3.0	10.0	11.5	5.50	1454	0.0
12	Chadalavada, Bhaarghavarama	1467	RSA	+30N	−7B	−18N	+22B	+26N	3.0	9.5	11.0	5.50	691	-18.4
13	FIDE 534013792	0	—	−3B	+?N	+?B	−?B	+19N	3.0	6.0	6.0	2.00	626	0.0
14	Hlwathika, Thandolwenkosi	1515	RSA	+32N	=23B	+16N	−4B	−3N	2.5	12.5	13.5	4.50	1153	-54.4
15	Lodi, Olebogeng	1463	RSA	=28N	+22B	+23N	−6B	−16N	2.5	10.5	12.0	4.75	2239	+18.8
16	FIDE 534013580	0	—	F	=25N	−14B	+24N	+15B	2.5	9.0	9.0	5.50	1488	0.0
17	FIDE 534012400	0	—	−?N	+?B	−4N	=?N	+29B	2.5	5.5	5.5	1.50	625	0.0
18	Van Rensburg, Ben	0	RSA	+24B	−2N	+12B	−?N	−10B	2.0	12.0	12.0	5.00	1252	0.0
19	Westermann, Inge	0	RSA	+26N	−10B	+25B	−9N	−13B	2.0	11.0	13.0	4.00	651	0.0
20	Haupt, Joshua	1451	RSA	−25B	+30N	+31B	−5N	−7N	2.0	11.0	12.0	2.50	691	-17.6
21	FIDE 534012478	0	—	F	−3N	−5B	+31N	+25B	2.0	11.0	11.0	3.00	621	0.0
22	FIDE 14371987	0	—	−6B	−15N	+33B	−12N	+31B	2.0	10.5	10.5	1.00	662	0.0
23	Maponya, Warona	1441	RSA	+33B	=14N	−15B	=25N	−11B	2.0	10.0	10.0	2.25	1295	-14.8
24	FIDE 534040420	0	—	−18N	+27B	−9N	−16B	+32N	2.0	9.5	10.5	3.00	668	0.0
25	Li, Jiming	0	RSA	+20N	=16B	−19N	=23B	−21N	2.0	8.5	10.5	4.25	1463	0.0
26	FIDE 534002561	0	—	−19B	+29N	−?B	+?N	−12B	2.0	6.5	6.5	1.50	654	0.0
27	FIDE 534013482	0	—	−?B	−24N	−11B	+?N	+?B	2.0	5.0	5.0	0.00	645	0.0
28	FIDE 534017585	0	—	=15B	−6N	−?B	−11N	+33B	1.5	9.5	9.5	1.25	1461	0.0
29	FIDE 534012486	0	—	−7N	−26B	+?N	=30B	−17N	1.5	9.5	9.5	0.75	691	0.0
30	FIDE 534031707	0	—	−12B	−20B	+32N	=29N	−?B	1.5	7.5	7.5	1.75	655	0.0
31	FIDE 534013423	0	—	−10N	+32B	−20N	−21B	−22N	1.0	9.0	10.0	1.00	641	0.0
32	FIDE 534018492	0	—	−14B	−31N	−30B	+33N	−24B	1.0	7.0	7.0	0.00	714	0.0
33	FIDE 534040447	0	—	−23N	−4B	−22N	−32B	−28N	0.0	9.5	10.5	0.00	629	0.0

Key insights

Biggest movers and upsets — the story behind the numbers.

Top rating gainers

1Theron, CarlaRSA
+60.8
4.0 pts · #1
2Theron, LydiaRSA
+48.0
4.0 pts · #7
3Lodi, OlebogengRSA
+18.8
2.5 pts · #13

Top rating losers

1Hlwathika, ThandolwenkosiRSA
-54.4
2.5 pts · #15
2Kruger, HendrikRSA
-44.4
3.0 pts · #18
3Vorster, WianRSA
-20.0
3.0 pts · #30

Biggest upsets

R5+113 Elo gap
Seitei, Neo1402 beat Hlwathika, Thandolwenkosi1515