Chess South Africa Ratings Database

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Personal

Pelser, J (Jean-Marie)

Chess SA id

206050956

FIDE id

Date of birth

2006-05-26 (U20)

Gender

Female

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Last active game

2024-10-05

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1439.5	1445.3	1272.8	891
Raw rating	1439.5	1445.3	1266.8	891
Weighted rating	1434.2	1440.7	1272.8	891
Weighted performance	1064.7	1102.9	0	0
Floor	1002.1	1009	821.6	500
K-factor	32	32	36	40
Min/Max rating change allowed	117.9	116.9	150.8	257.5
Highest rating	1502.1 2023-09-01	1509 2023-09-01	1321.6 2024-03-01	1200 2024-03-01
Highest raw rating	1502.1 2023-09-01	1509 2023-09-01	1321.6 2024-03-01	891 2024-03-01
Highest weighted rating	1502.1 2024-02-01	1509 2024-02-01	1266.8 2025-08-01	891 2024-11-01
Highest weighted performance	1499.6 2023-08-01	1499.1 2023-08-01	1200 2018-02-01	1200 2024-03-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0.9	0
New rating	1439.5	1445.3	1273.7	891
Analysis
Rating	1439.5	1445.3	1272.8	891
Raw rating	1439.5	1445.3	1266.8	891
Weighted rating	1434.2	1440.7	1272.8
Weighted performance	1064.7	1102.9	0
K-factor	32	32	36	40
Floor	1002.1	1009	821.6	500
Max/Min rating change allowed	117.9	116.9	150.8	257.5
Games	0	0	0	0
Score	0	0	0	0
Expected score	0	0	0	0
Score-Expected	0	0	0	0
Temp raw +/-	0	0	0	0
Final raw +/-	0	0	0	0
New raw rating	1439.5	1445.3	1266.8	891
New weighted rating	1434.1	1440.7	1273.7	891
New weighted performance	1064.3	1102.5	0	0
Temp new rating	1439.5	1445.3	1273.7	891
Temp new rating +/-	0	0	0.9	0
Final new rating +/-	0	0	0.9	0
New rating	1439.5	1445.3	1273.7	891
New K-factor	32	32	36	40
New floor	1002.1	1009	821.6	500

Item	Main	Standard	Rapid
	0	0	0
	0	0	0
	19	14	5
	10	10	0
	36	36	0
	22	22	0
History	533	513	20

Games since
	Main 19	Standard 14		Rapid 5		Blitz 0
Gender	Female
Age group	U20
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Female	-1		-1		-1
U20	-1		-1		-1
U20 Female	-1		-1		-1


	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

	Games	Score	%	Dp	AvgOpp	Performance
Main	0	0	0	0	0	0
Standard	0	0	0	0	0	0
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	261	153	58.62	73.3	1192.8	1266
Standard	246	148	60.16	86.4	1192.2	1278.6
Rapid	15	5	33.33	-141.7	1202.1	1060.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1439.5	1445.3	1266.8	891
2025-09-01	1439.5	1445.3	1266.8	891
2025-08-01	1439.5	1445.3	1266.8	891
2025-07-01	1439.5	1445.3	1262.2	891
2025-06-01	1439.5	1445.3	1258.6	891
2025-05-01	1439.5	1445.3	1258.6	891
2025-04-01	1439.5	1445.3	1258.6	891
2025-03-01	1439.5	1445.3	1258.6	891
2025-02-01	1437.9	1445.2	1258.6	891
2025-01-01	1400.8	1431.2	1258.6	891
2024-12-01	1400.8	1431.2	1258.6	891
2024-11-01	1400.8	1431.2	1258.6	891
2024-10-01	1436.1	1431.2	1321.6	891
2024-09-01	1436.1	1431.2	1321.6	891
2024-08-01	1433.4	1426.1	1321.6	891
2024-07-01	1433.4	1426.1	1321.6	891
2024-06-01	1433.4	1426.1	1321.6	891
2024-08-01	1433.4	1426.1	1321.6	891
2024-04-01	1433.4	1426.1	1321.6	891
2024-03-01	1433.4	1426.1	1321.6	891
2024-02-01	1450.4	1450.4	1321.6	891
2024-01-01	1502.1	1509	1321.6	891
2023-12-01	1502.1	1509	890.2	891
2023-11-01	1502.1	1509	890.2	891

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Gauteng Top Schools 2024 (U19 Open)	2024-10-05	2024-10-05	Rapid	Ekurhuleni (GE)	5	5	1.5	Yes	Analysis
2	D4 Tshwane South District Schools Teams Chess Tournament 2024 (U19A)	2024-08-03	2024-08-03	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
3	Grey College Team Championship 2024 (A)	2024-02-23	2024-02-24	Standard	Mangaung (FMB)	5	5	2	Yes	Analysis
4	2024 Gauteng Inter-Region Chess Championship (U20 Open+Girls)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	4	0.5	Yes	Analysis
5	2023 Gauteng Top Schools (U19 Girls)	2023-08-19	2023-08-19	Standard	West Rand (GWR)	5	5	5	Yes	Analysis
6	2023 Tshwane Chess Open Registration Tournament (B1)	2023-01-28	2023-01-28	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
7	2022 South African Junior Team Chess Championships (U20 Open+Girls)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	6	4	Yes	Analysis
8	2022 Alekhine Open (B)	2022-08-13	2022-08-14	Standard	Tshwane (GTP)	5	4	1.5	Yes	Analysis
9	2022 Gauteng Schools Team Championships (U19 Girls)	2022-08-26	2022-08-26	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
10	South African Junior Closed Chess Championships 2022 (U16 Girls)	2022-03-28	2022-04-02	Standard	Chess South Africa (CSA)	11	11	5	Yes	Analysis
11	2022 Gauteng Interregion (U16+U18 Girls)	2022-02-26	2022-02-26	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
12	2022 Tshwane Chess Open Registration Tournament (B)	2022-01-29	2022-01-29	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
13	2021 Etienne Lewis Closed Trials (U16 Girls)	2021-09-24	2021-09-26	Standard	Nelson Mandela Bay (ENM)	7	7	4	Yes	Analysis
14	2021 Gauteng North Open Tournament (B)	2021-08-28	2021-08-29	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
15	2021 Lubowski Open Tournament (B)	2021-05-01	2021-05-02	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
16	2021 Registration Tournament (B)	2021-03-13	2021-03-13	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
17	2020 Waterkloof Open (B)	2020-02-29	2020-03-01	Standard	Tshwane (GTP)	5	3	0.5	Yes	Analysis
18	Grey College Team Championship 2020 (A)	2020-01-31	2020-02-01	Standard	Mangaung (FMB)	5	5	3.5	Yes	Analysis
19	2020 Registration Tournament (B)	2020-01-25	2020-01-25	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
20	2019 South African Junior Team Championships (U14A Girls)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	7	6.5	Yes	Analysis
21	2019 Etienne Lewis Trials (U14 Girls)	2019-08-30	2019-09-01	Standard	Tshwane (GTP)	7	6	4	Yes	Analysis
22	2019 Gauteng School League Finals (U13 Girls)	2019-08-23	2019-08-23	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
23	2019 D4 Tshwane South Schools League Team Finals (U13)	2019-07-27	2019-07-27	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
24	2019 Super 12 Laerskole (Seniors)	2019-05-04	2019-05-04	Rapid	Tshwane (GTP)	5	5	1.5	Yes	Analysis
25	2019 Lubowski Open Tournament (B)	2019-05-11	2019-05-12	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
26	2019 Gauteng Primary Schools Individual Chess Championships (U13 Girls)	2019-05-25	2019-05-25	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
27	2019 Waterkloof Open (B)	2019-03-02	2019-03-03	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
28	2019 D4 Individual Finals (U13 Girls)	2019-03-09	2019-03-09	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
29	2019 South African Junior Closed Chess Championship (U14 Girls)	2019-03-17	2019-03-22	Standard	Chess South Africa (CSA)	9	9	3.5	Yes	Analysis
30	2019 TuksChess Open (B)	2019-02-23	2019-02-23	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
31	2019 Piet Robbertse (B)	2019-02-01	2019-02-03	Standard	Tshwane (GTP)	5	5	1	Yes	Analysis
32	2019 Constantia Park Open (B)	2019-02-09	2019-02-09	Standard	Tshwane (GTP)	5	4	1	Yes	Analysis
33	2019 Constantia Park Open (C)	2019-02-09	2019-02-09	Standard	Tshwane (GTP)	5	1	1	Yes	Analysis
34	2019 Tshwane Chess Registration Tournament (C)	2019-01-26	2019-01-26	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
35	South African Junior Team Championships 2018 (U14A Girls)	2018-12-16	2018-12-20	Standard	4 Knights (4K)	7	7	6.5	Yes	Analysis
36	2018 Etienne Lewis Trials (U14 Girls)	2018-08-31	2018-09-02	Standard	Tshwane (GTP)	7	7	4	Yes	Analysis
37	2018 Gauteng League Final (U13)	2018-08-24	2018-08-24	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
38	2018 D4 Tshwane South Schools League Finals (U13)	2018-08-03	2018-08-03	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
39	2018 Lubowski Open (C)	2018-05-12	2018-05-12	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
40	2018 Super 12 (Senior)	2018-05-05	2018-05-05	Rapid	Tshwane (GTP)	5	5	2	Yes	Analysis
41	2018 Gauteng Secondary Schools Individual Chess Championships (U13 Girls)	2018-05-25	2018-05-25	Standard	Tshwane (GTP)	5	5	3.5	Yes	Analysis
42	2018 South African Junior Closed Chess Championships (U12 Girls)	2018-04-01	2018-04-07	Standard	Chess South Africa (CSA)	11	11	3	Yes	Analysis
43	2018 Waterkloof Open (D)	2018-03-03	2018-03-04	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
44	2018 D4 Tshwane North Individual Chess Championships (U13 Girls)	2018-03-10	2018-03-10	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
45	2018 Constantia Park Open (C)	2018-02-10	2018-02-10	Standard	Tshwane (GTP)	5	5	1.5	Yes	Analysis
46	2018 Tshwane Registration Open Chess Tournament (D)	2018-01-27	2018-01-27	Standard	Tshwane (GTP)	5	5	5	Yes	Analysis
47	South African Junior Wildcard Championships 2017 (U12 Girls)	2018-01-09	2018-01-12	Standard	4 Knights (4K)	7	7	4.5	Yes	Analysis
48	South African Junior Team Championships 2017 (U12 Girls)	2018-01-04	2018-01-08	Standard	4 Knights (4K)	7	7	6	Yes	Analysis

#	Games	Start				End
1	10	Tournament 2019 Waterkloof Open				Tournament 2019 South African Junior Closed Chess Championship
		date 2019-03-02	rnd 2	type Standard	result 0.5	date 2019-03-17	rnd 1	type Standard	result 1
		Opponent Bouwer, D (Dane)				Opponent Schoeman, S (Sane)
2	9	Tournament 2018 Etienne Lewis Trials				Tournament 2019 Tshwane Chess Registration Tournament
		date 2018-09-02	rnd 7	type Standard	result 1	date 2019-01-26	rnd 1	type Standard	result 1
		Opponent Bent, C (Cierra)				Opponent Willemse, T (Telisha)
3	9	Tournament 2018 Lubowski Open				Tournament 2018 Gauteng Secondary Schools Individual Chess Championships
		date 2018-05-12	rnd 1	type Standard	result 1	date 2018-05-25	rnd 4	type Standard	result 1
		Opponent Klopper, C (Chris)				Opponent De Beer, J (Janka)

#	Games	Start				End
1	10	Tournament 2019 Waterkloof Open				Tournament 2019 South African Junior Closed Chess Championship
		date 2019-03-02	rnd 2	type Standard	result 0.5	date 2019-03-17	rnd 1	type Standard	result 1
		Opponent Bouwer, D (Dane)				Opponent Schoeman, S (Sane)
2	9	Tournament 2018 Etienne Lewis Trials				Tournament 2019 Tshwane Chess Registration Tournament
		date 2018-09-02	rnd 7	type Standard	result 1	date 2019-01-26	rnd 1	type Standard	result 1
		Opponent Bent, C (Cierra)				Opponent Willemse, T (Telisha)
3	9	Tournament 2018 Lubowski Open				Tournament 2018 Gauteng Secondary Schools Individual Chess Championships
		date 2018-05-12	rnd 1	type Standard	result 1	date 2018-05-25	rnd 4	type Standard	result 1
		Opponent Klopper, C (Chris)				Opponent De Beer, J (Janka)

#	Games	Start				End
1	2	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 1	type Rapid	result 0.5	date 2019-05-04	rnd 2	type Rapid	result 1
		Opponent Visagie, M (Mondre)				Opponent Dyason, N (Nicola)
2	2	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 2	type Rapid	result 1	date 2018-05-05	rnd 3	type Rapid	result 1
		Opponent Meiring, JE (Jean)				Opponent Olivier, C (Coenraad)
3	1	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 4	type Rapid	result 0.5	date 2024-10-05	rnd 4	type Rapid	result 0.5
		Opponent Khunou, T (Tumelo)				Opponent Khunou, T (Tumelo)

No games found.

#	Games	Start				End

#	Games	Start				End
1	7	Tournament 2019 Waterkloof Open				Tournament 2019 South African Junior Closed Chess Championship
		date 2019-03-03	rnd 5	type Standard	result 1	date 2019-03-17	rnd 1	type Standard	result 1
		Opponent Malan, A (Aiden)				Opponent Schoeman, S (Sane)
2	7	Tournament South African Junior Team Championships 2018				Tournament 2019 Tshwane Chess Registration Tournament
		date 2018-12-16	rnd 2	type Standard	result 1	date 2019-01-26	rnd 1	type Standard	result 1
		Opponent Makofane, A (Alice)				Opponent Willemse, T (Telisha)
3	6	Tournament 2019 South African Junior Team Championships				Tournament 2019 South African Junior Team Championships
		date 2020-01-04	rnd 2	type Standard	result 1	date 2020-01-08	rnd 7	type Standard	result 1
		Opponent Msiwa, N (Nokuthula)				Opponent Labase, B (Busisiwe)

#	Games	Start				End
1	7	Tournament 2019 Waterkloof Open				Tournament 2019 South African Junior Closed Chess Championship
		date 2019-03-03	rnd 5	type Standard	result 1	date 2019-03-17	rnd 1	type Standard	result 1
		Opponent Malan, A (Aiden)				Opponent Schoeman, S (Sane)
2	7	Tournament South African Junior Team Championships 2018				Tournament 2019 Tshwane Chess Registration Tournament
		date 2018-12-16	rnd 2	type Standard	result 1	date 2019-01-26	rnd 1	type Standard	result 1
		Opponent Makofane, A (Alice)				Opponent Willemse, T (Telisha)
3	6	Tournament 2019 South African Junior Team Championships				Tournament 2019 South African Junior Team Championships
		date 2020-01-04	rnd 2	type Standard	result 1	date 2020-01-08	rnd 7	type Standard	result 1
		Opponent Msiwa, N (Nokuthula)				Opponent Labase, B (Busisiwe)

#	Games	Start				End
1	2	Tournament 2018 Super 12				Tournament 2018 Super 12
		date 2018-05-05	rnd 2	type Rapid	result 1	date 2018-05-05	rnd 3	type Rapid	result 1
		Opponent Meiring, JE (Jean)				Opponent Olivier, C (Coenraad)
2	1	Tournament Gauteng Top Schools 2024				Tournament Gauteng Top Schools 2024
		date 2024-10-05	rnd 2	type Rapid	result 1	date 2024-10-05	rnd 2	type Rapid	result 1
		Opponent Ferreira Lopes, S (Stephen)				Opponent Ferreira Lopes, S (Stephen)
3	1	Tournament 2019 Super 12 Laerskole				Tournament 2019 Super 12 Laerskole
		date 2019-05-04	rnd 2	type Rapid	result 1	date 2019-05-04	rnd 2	type Rapid	result 1
		Opponent Dyason, N (Nicola)				Opponent Dyason, N (Nicola)

No games found.

#	Games	Start				End

Top 10 opponents most often played

#	Opponent	Main			Standard			Rapid			Blitz
		Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp	Gms	Score	Dp
		Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat	Gms	Aor	Prat
1	Bent ,C (Cierra)	6	2	-141.7	6	2	-141.7	0	0	0	0	0	0
1	Bent ,C (Cierra)	6	1163.1	1021.5	6	1160.5	1021.5	0	0	0	0	0	0
2	Reyneke ,M (Melindie)	4	4	425	4	4	425	0	0	0	0	0	0
2	Reyneke ,M (Melindie)	4	1078.2	1503.2	4	1072.8	1503.2	0	0	0	0	0	0
3	Naidoo ,M (Mira)	4	2	0	4	2	0	0	0	0	0	0	0
3	Naidoo ,M (Mira)	4	1135.3	1135.3	4	1131.2	1135.3	0	0	0	0	0	0
4	Monnig ,E (Erika)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
4	Monnig ,E (Erika)	3	1386	1244.3	3	1391.1	1244.3	0	0	0	0	0	0
5	Odendaal ,Z (Zandri)	3	3	425	3	3	425	0	0	0	0	0	0
5	Odendaal ,Z (Zandri)	3	988.1	1413.1	3	980.5	1413.1	0	0	0	0	0	0
6	Naude ,N (Nia)	3	2	141.7	3	2	141.7	0	0	0	0	0	0
6	Naude ,N (Nia)	3	1397.4	1539	3	1387.3	1539	0	0	0	0	0	0
7	De Vries ,MA (Andrio)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
7	De Vries ,MA (Andrio)	3	1197.8	1056.1	3	1194.1	1056.1	0	0	0	0	0	0
8	Le Roux ,C (Claire)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
8	Le Roux ,C (Claire)	3	1441.5	1299.8	3	1433.3	1299.8	0	0	0	0	0	0
9	Qangule ,MK (Mandibonge Khaka)	3	0	-425	3	0	-425	0	0	0	0	0	0
9	Qangule ,MK (Mandibonge Khaka)	3	994.6	569.6	3	990.9	569.6	0	0	0	0	0	0
10	Wang ,P-S (Pei-Shan)	3	0	-425	3	0	-425	0	0	0	0	0	0
10	Wang ,P-S (Pei-Shan)	3	1162.9	737.9	3	1168	737.9	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Pelser, J (Jean-Marie)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms