Chess South Africa Ratings Database

PLAYER PAGE

Personal

Froom, J (Jacob)

Chess SA id

1110097689

FIDE id

Date of birth

2011-06-01 (U16)

Gender

Male

Region

Johannesburg Metro (GJM)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-06-09

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

Item	Main	Standard	Rapid	Blitz
Rating	1448.5	1479.5	1238.3	1105.6
Raw rating	1432.1	1479.5	1237.3	1105.6
Weighted rating	1448.5	1475	1238.3	1105.6
Weighted performance	1103.2	1214.7	0	0
Floor	970.6	979.5	766.4	700
K-factor	32	32	36	36
Min/Max rating change allowed	119.1	111.3	157.2	189.7
Highest rating	1470.6 2024-07-01	1479.5 2024-12-01	1326.6 2023-12-01	1200 2018-10-01
Highest raw rating	1470.6 2024-07-01	1479.5 2024-12-01	1266.4 2024-07-01	1200 2020-01-01
Highest weighted rating	1470.6 2025-06-01	1472.7 2025-08-01	1238.1 2025-09-01	1200 2018-10-01
Highest weighted performance	1462.2 2023-07-01	1467.7 2024-06-01	1326.6 2023-12-01	1200 2019-12-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	-1.5	0	0	0
New rating	1446.9	1479.5	1238.3	1105.6
Analysis
Rating	1448.5	1479.5	1238.3	1105.6
Raw rating	1432.1	1479.5	1237.3	1105.6
Weighted rating	1448.5	1475	1238.3
Weighted performance	1103.2	1214.7	0
K-factor	32	32	36	36
Floor	970.6	979.5	766.4	700
Max/Min rating change allowed	119.1	111.3	157.2	189.7
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	1432.1	1479.5	1237.3	1105.6
New weighted rating	1446.9	1475.9	1238.3	1105.6
New weighted performance	1102.7	1214.2	0	0
Temp new rating	1446.9	1479.5	1238.3	1105.6
Temp new rating +/-	-1.5	0	0	0
Final new rating +/-	-1.5	0	0	0
New rating	1446.9	1479.5	1238.3	1105.6
New K-factor	32	32	36	36
New floor	970.6	979.5	766.4	700

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	4	0	4	0
	28	17	11	0
	35	29	6	0
	42	35	0	7
	0	0	0	0
History	145	111	21	13

Games since
	Main 38	Standard 17		Rapid 21		Blitz 0
Gender	Male
Age group	U16
Region	Johannesburg Metro (GJM)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	1410		242		98
Male	1116		189		86
U16	226		25		11
U16 Male	177		17		9
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U16	-1		-1		-1
U16 Male	-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	4	2	50	0	1273.6	1273.6
Standard	0	0	0	0	0	0
Rapid	4	2	50	0	1273.6	1273.6
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	145	75	51.72	14.7	1312	1326.6
Standard	111	58	52.25	19.1	1319.4	1338.6
Rapid	21	12	57.14	60.7	1260	1320.7
Blitz	13	5	38.46	-98.1	1332.4	1234.3

Date	Main	Standard	Rapid	Blitz
2025-09-30	1432.1	1479.5	1237.3	1105.6
2025-09-01	1432.1	1479.5	1237.3	1105.6
2025-08-01	1451.7	1479.5	1237.8	1105.6
2025-07-01	1451.7	1479.5	1237.4	1105.6
2025-06-01	1451.7	1479.5	1236.8	1105.6
2025-05-01	1451.6	1479.5	1236.5	1105.6
2025-04-01	1451.3	1479.5	1236.5	1105.6
2025-03-01	1450.8	1479.5	1236.5	1105.6
2025-02-01	1449.8	1479.5	1236.5	1105.6
2025-01-01	1445.7	1479.5	1236.5	1105.6
2024-12-01	1445.7	1479.5	1236.5	1105.6
2024-11-01	1440.4	1474.7	1236.5	1105.6
2024-10-01	1440.4	1474.7	1236.5	1105.6
2024-09-01	1440.4	1474.7	1236.5	1105.6
2024-08-01	1470.6	1474.7	1266.4	1105.6
2024-07-01	1470.6	1474.7	1266.4	1105.6
2024-06-01	1449.8	1441.1	1234	1105.6
2024-08-01	1463.3	1454.5	1234	1105.6
2024-04-01	1463.3	1454.5	1234	1105.6
2024-03-01	1463.3	1454.5	1234	1105.6
2024-02-01	1463.3	1454.5	1234	1105.6
2024-01-01	1450.7	1439.8	1234	1105.6
2023-12-01	1450.7	1439.8	1234	1105.6
2023-11-01	1446.5	1439.8	1200	1105.6

Comming soon.

Tournaments

History

No tournaments found.

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	JCC - SAHETI Chess League 2025	2025-05-12	2025-06-09	Rapid	Johannesburg Metro (GJM)	5	4	2	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	JCC - SAHETI Chess League 2025	2025-05-12	2025-06-09	Rapid	Johannesburg Metro (GJM)	5	4	2	Yes	Analysis
2	JCC St Peters High Schools League 2024 (A)	2024-09-09	2024-10-21	Standard	Johannesburg Metro (GJM)	6	2	1.5	Yes	Analysis
3	CPH King David Linksfield Aug Rapid 2024 (A)	2024-08-18	2024-08-18	Rapid	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
4	JCC SAHETI High Schools League Round Robin 2024	2024-05-20	2024-06-10	Rapid	Johannesburg Metro (GJM)	7	6	4	Yes	Analysis
5	JMC Trinityhouse Little Falls 2024 (B)	2024-06-02	2024-06-02	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
6	GoForChess Junior Chess Championships 2024 (Senior)	2024-05-19	2024-05-19	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
7	2024 Gauteng Inter-Region Chess Championship (U14B)	2024-01-13	2024-01-14	Standard	Tshwane (GTP)	5	5	4	Yes	Analysis
8	Chess Power House Festive Rapid 2023 (High School)	2023-12-15	2023-12-15	Rapid	Johannesburg Metro (GJM)	6	6	4	Yes	Analysis
9	JMC Trinity Little Falls 2023 (C)	2023-07-02	2023-07-02	Standard	Johannesburg Metro (GJM)	5	5	4	Yes	Analysis
10	Knight Riders Youth Day 2023 (U14+U16)	2023-06-16	2023-06-16	Standard	Johannesburg Metro (GJM)	5	5	3.5	Yes	Analysis
11	2023 Milos Ristic Open Tournament (BC)	2023-04-27	2023-04-27	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
12	2023 South African Junior Closed Chess Championships (U12 Open)	2023-03-31	2023-04-04	Standard	Chess South Africa (CSA)	9	9	4.5	Yes	Analysis
13	Chris Greyling Open Tournament 2023 (BC)	2023-03-21	2023-03-21	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
14	2022 South African Junior Wild Card Chess Championships (U12 Open)	2022-12-09	2022-12-12	Standard	4 Knights (4K)	7	7	6	Yes	Analysis
15	2022 South African Junior Team Chess Championships (U12 Open)	2022-12-04	2022-12-08	Standard	4 Knights (4K)	7	7	3	Yes	Analysis
16	2022 South Africa Junior Blitz Chess Championships (U12)	2022-12-05	2022-12-05	Blitz	4 Knights (4K)	7	7	4	Yes	Analysis
17	JMC 3rd Trials 2022 (C)	2022-09-11	2022-09-11	Standard	Johannesburg Metro (GJM)	5	5	1.5	Yes	Analysis
18	JMC Trials 1 - Laerskool Fontainebleau 2022 (U12)	2022-07-24	2022-07-24	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
19	South African Junior Closed Chess Championships 2022 (U12 Open)	2022-03-28	2022-04-02	Standard	Chess South Africa (CSA)	11	11	1	Yes	Analysis
20	Goforchess Junior Chess Championship 2 2020	2020-11-29	2020-11-29	Standard	Johannesburg Metro (GJM)	5	5	2	Yes	Analysis
21	Goforchess Junior Chess Championship 1 2020	2020-11-08	2020-11-08	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
22	2019 South African Juior Blitz Championship (B)	2020-01-05	2020-01-05	Blitz	4 Knights (4K)	7	6	1	Yes	Analysis
23	2019 Wild Card Chess Championship (U10 Open)	2020-01-09	2020-01-12	Standard	4 Knights (4K)	7	5	2	Yes	Analysis
24	2019 South African Junior Team Championships (U10D)	2020-01-04	2020-01-08	Standard	4 Knights (4K)	7	5	2	Yes	Analysis
25	2019 Capablanca Chess Festival (Swiss E)	2019-04-19	2019-04-19	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
26	JCC Wits 2018 (Development)	2018-02-25	2018-02-25	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis

#	Games	Start				End
1	9	Tournament 2022 South African Junior Team Chess Championships				Tournament Chris Greyling Open Tournament 2023
		date 2022-12-08	rnd 7	type Standard	result 1	date 2023-03-21	rnd 1	type Standard	result 1
		Opponent Sebetola, TJ (Tumelo)				Opponent Marks, L (Luke)
2	6	Tournament JMC Trinityhouse Little Falls 2024				Tournament JCC SAHETI High Schools League Round Robin 2024
		date 2024-06-02	rnd 2	type Standard	result 0.5	date 2024-06-10	rnd 6	type Rapid	result 1
		Opponent Thorulsley, K (Kairaav)				Opponent Monastursky, D (Daniel)
3	5	Tournament Chess Power House Festive Rapid 2023				Tournament 2024 Gauteng Inter-Region Chess Championship
		date 2023-12-15	rnd 6	type Rapid	result 1	date 2024-01-14	rnd 4	type Standard	result 1
		Opponent Pillay, L (Leeyah)				Opponent Chitsamba, L (Liezel)

#	Games	Start				End
1	9	Tournament 2022 South African Junior Team Chess Championships				Tournament Chris Greyling Open Tournament 2023
		date 2022-12-08	rnd 7	type Standard	result 1	date 2023-03-21	rnd 1	type Standard	result 1
		Opponent Sebetola, TJ (Tumelo)				Opponent Marks, L (Luke)
2	7	Tournament JMC Trinity Little Falls 2023				Tournament 2024 Gauteng Inter-Region Chess Championship
		date 2023-07-02	rnd 3	type Standard	result 1	date 2024-01-14	rnd 4	type Standard	result 1
		Opponent Nkabinde, N (Nkazimulo)				Opponent Chitsamba, L (Liezel)
3	6	Tournament JMC Trinityhouse Little Falls 2024				Tournament JCC St Peters High Schools League 2024
		date 2024-06-02	rnd 2	type Standard	result 0.5	date 2024-09-30	rnd 3	type Standard	result 1
		Opponent Thorulsley, K (Kairaav)				Opponent Urban, M (Matthew Louis)

#	Games	Start				End
1	3	Tournament JCC SAHETI High Schools League Round Robin 2024				Tournament JCC SAHETI High Schools League Round Robin 2024
		date 2024-05-27	rnd 3	type Rapid	result 1	date 2024-06-10	rnd 6	type Rapid	result 1
		Opponent Han, J (Jiayin)				Opponent Monastursky, D (Daniel)
2	2	Tournament CPH King David Linksfield Aug Rapid 2024				Tournament JCC - SAHETI Chess League 2025
		date 2024-08-18	rnd 5	type Rapid	result 1	date 2025-05-12	rnd 1	type Rapid	result 1
		Opponent Ramsunder, M (Milan)				Opponent Lim, M (Michelle)
3	2	Tournament Chess Power House Festive Rapid 2023				Tournament JCC SAHETI High Schools League Round Robin 2024
		date 2023-12-15	rnd 6	type Rapid	result 1	date 2024-05-20	rnd 1	type Rapid	result 1
		Opponent Pillay, L (Leeyah)				Opponent Woldeyohanes, K (Kirubel)

#	Games	Start				End
1	3	Tournament 2019 South African Juior Blitz Championship				Tournament 2022 South Africa Junior Blitz Chess Championships
		date 2020-01-05	rnd 7	type Blitz	result 1	date 2022-12-05	rnd 2	type Blitz	result 1
		Opponent Handford, C (Chris)				Opponent Rust, C (Christoph)
2	2	Tournament 2022 South Africa Junior Blitz Chess Championships				Tournament 2022 South Africa Junior Blitz Chess Championships
		date 2022-12-05	rnd 6	type Blitz	result 1	date 2022-12-05	rnd 7	type Blitz	result 1
		Opponent Kotzee, J (Juvan)				Opponent Bergh, M (Martin)

#	Games	Start				End
1	5	Tournament Chess Power House Festive Rapid 2023				Tournament 2024 Gauteng Inter-Region Chess Championship
		date 2023-12-15	rnd 6	type Rapid	result 1	date 2024-01-14	rnd 4	type Standard	result 1
		Opponent Pillay, L (Leeyah)				Opponent Chitsamba, L (Liezel)
2	5	Tournament JMC Trinity Little Falls 2023				Tournament Chess Power House Festive Rapid 2023
		date 2023-07-02	rnd 3	type Standard	result 1	date 2023-12-15	rnd 2	type Rapid	result 1
		Opponent Nkabinde, N (Nkazimulo)				Opponent Mrwetyana, B (Bulumko Ayamkela)
3	4	Tournament 2022 South Africa Junior Blitz Chess Championships				Tournament 2022 South African Junior Team Chess Championships
		date 2022-12-05	rnd 6	type Blitz	result 1	date 2022-12-06	rnd 4	type Standard	result 1
		Opponent Kotzee, J (Juvan)				Opponent Hex, K (Kyle)

#	Games	Start				End
1	7	Tournament JMC Trinity Little Falls 2023				Tournament 2024 Gauteng Inter-Region Chess Championship
		date 2023-07-02	rnd 3	type Standard	result 1	date 2024-01-14	rnd 4	type Standard	result 1
		Opponent Nkabinde, N (Nkazimulo)				Opponent Chitsamba, L (Liezel)
2	3	Tournament GoForChess Junior Chess Championships 2024				Tournament GoForChess Junior Chess Championships 2024
		date 2024-05-19	rnd 1	type Standard	result 1	date 2024-05-19	rnd 3	type Standard	result 1
		Opponent Ding, L (Li Yen)				Opponent Zou, Y (Yixuan)
3	3	Tournament 2022 South African Junior Wild Card Chess Championships				Tournament 2022 South African Junior Wild Card Chess Championships
		date 2022-12-10	rnd 4	type Standard	result 1	date 2022-12-11	rnd 6	type Standard	result 1
		Opponent Van Meersbergen, E (Ettienne)				Opponent Kingsbury, J (Jack)

#	Games	Start				End
1	3	Tournament JCC SAHETI High Schools League Round Robin 2024				Tournament JCC SAHETI High Schools League Round Robin 2024
		date 2024-05-27	rnd 3	type Rapid	result 1	date 2024-06-10	rnd 6	type Rapid	result 1
		Opponent Han, J (Jiayin)				Opponent Monastursky, D (Daniel)
2	2	Tournament CPH King David Linksfield Aug Rapid 2024				Tournament JCC - SAHETI Chess League 2025
		date 2024-08-18	rnd 5	type Rapid	result 1	date 2025-05-12	rnd 1	type Rapid	result 1
		Opponent Ramsunder, M (Milan)				Opponent Lim, M (Michelle)
3	2	Tournament Chess Power House Festive Rapid 2023				Tournament JCC SAHETI High Schools League Round Robin 2024
		date 2023-12-15	rnd 6	type Rapid	result 1	date 2024-05-20	rnd 1	type Rapid	result 1
		Opponent Pillay, L (Leeyah)				Opponent Woldeyohanes, K (Kirubel)

#	Games	Start				End
1	3	Tournament 2019 South African Juior Blitz Championship				Tournament 2022 South Africa Junior Blitz Chess Championships
		date 2020-01-05	rnd 7	type Blitz	result 1	date 2022-12-05	rnd 2	type Blitz	result 1
		Opponent Handford, C (Chris)				Opponent Rust, C (Christoph)
2	2	Tournament 2022 South Africa Junior Blitz Chess Championships				Tournament 2022 South Africa Junior Blitz Chess Championships
		date 2022-12-05	rnd 6	type Blitz	result 1	date 2022-12-05	rnd 7	type Blitz	result 1
		Opponent Kotzee, J (Juvan)				Opponent Bergh, M (Martin)

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	Froom ,G (Gabriel)	6	1	-283.3	5	1	-255	0	0	0	1	0	-425
1	Froom ,G (Gabriel)	6	1397.3	1114	5	1391.6	1142.3	0	0	0	1	1151.6	972.3
2	Pillay ,Z (Zac)	2	2	425	2	2	425	0	0	0	0	0	0
2	Pillay ,Z (Zac)	2	1435.8	1860.8	2	1439	1860.8	0	0	0	0	0	0
3	D`Alton ,E (Ezra)	2	2	425	2	2	425	0	0	0	0	0	0
3	D`Alton ,E (Ezra)	2	1314.2	1739.2	2	1287.9	1739.2	0	0	0	0	0	0
4	Hex ,K (Kyle)	2	2	425	2	2	425	0	0	0	0	0	0
4	Hex ,K (Kyle)	2	1440.1	1865.1	2	1413.1	1865.1	0	0	0	0	0	0
5	Gondwe ,P (Prosper)	2	0	-425	2	0	-425	0	0	0	0	0	0
5	Gondwe ,P (Prosper)	2	1373.8	948.8	2	1358.8	948.8	0	0	0	0	0	0
6	Schwartz ,M (Michael)	2	0.5	-212.5	2	0.5	-212.5	0	0	0	0	0	0
6	Schwartz ,M (Michael)	2	1405.7	1193.2	2	1392.2	1193.2	0	0	0	0	0	0
7	Botha ,JCC (Johannes Christiaan Corneli)	2	0	-425	2	0	-425	0	0	0	0	0	0
7	Botha ,JCC (Johannes Christiaan Corneli)	2	1496.1	1071.1	2	1488.4	1071.1	0	0	0	0	0	0
8	Reyneke ,M (Melindie)	2	2	425	2	2	425	0	0	0	0	0	0
8	Reyneke ,M (Melindie)	2	1223.5	1648.5	2	1215.2	1648.5	0	0	0	0	0	0
9	Ryan ,D (Declan)	2	1	0	2	1	0	0	0	0	0	0	0
9	Ryan ,D (Declan)	2	1299.3	1299.3	2	1298.6	1299.3	0	0	0	0	0	0
10	Mungal ,E (Ethan)	2	0	-425	2	0	-425	0	0	0	0	0	0
10	Mungal ,E (Ethan)	2	1452.7	1027.7	2	1440.1	1027.7	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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Personal

Froom, J (Jacob)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms