Chess South Africa Ratings Database

PLAYER PAGE

Personal

Beukman, J (Jonah)

Chess SA id

1120313014

FIDE id

Date of birth

2012-12-12 (U14)

Gender

Male

Region

Buffalo City (EBC)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-18

Personal details last changed

1900-01-01

Junior GPX Games

77.3

Junior GPX Points

1351.1

Item	Main	Standard	Rapid	Blitz
Rating	1516.8	1515	1330.3	1200
Raw rating	1516.8	1515	1330.3	1200
Weighted rating	1344.7	1329.9	1259.1	1200
Weighted performance	1496.5	1503.8	0	0
Floor	1027.4	1018	830.3	700
K-factor	32	32	36	36
Min/Max rating change allowed	105.6	105.9	137.7	165.8
Highest rating	1527.4 2025-08-01	1518 2025-08-01	1330.3 2025-11-01	1200 2024-10-01
Highest raw rating	1527.4 2025-08-01	1518 2025-08-01	1330.3 2025-11-01	1200 2024-10-01
Highest weighted rating	1344.7 2025-11-01	1329.9 2025-11-01	1259.1 2025-11-01	1200 2024-10-01
Highest weighted performance	1527.4 2025-08-01	1518 2024-10-01	1200 2024-10-01	1200 2024-10-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1516.8	1515	1330.3	1200
Analysis
Rating	1516.8	1515	1330.3	1200
Raw rating	1516.8	1515	1330.3	1200
Weighted rating	1344.7	1329.9	1259.1
Weighted performance	1496.5	1503.8	0
K-factor	32	32	36	36
Floor	1027.4	1018	830.3	700
Max/Min rating change allowed	105.6	105.9	137.7	165.8
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	1516.8	1515	1330.3	1200
New weighted rating	1363.1	1349	1266.6	1200
New weighted performance	1487.7	1494.9	0	0
Temp new rating	1516.8	1515	1330.3	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1516.8	1515	1330.3	1200
New K-factor	32	32	36	36
New floor	1027.4	1018	830.3	700

Item	Main	Standard	Rapid
	0	0	0
	86	66	20
	5	5	0
	0	0	0
	0	0	0
	0	0	0
History	91	71	20

Games since
	Main 91	Standard 71		Rapid 20		Blitz 0
Gender	Male
Age group	U14
Region	Buffalo City (EBC)
Province	Eastern Cape (EC)
Main
	RSA		Province		Region
Overall	1153		130		48
Male	1000		114		42
U14	156		27		12
U14 Male	125		22		10
Standard
	RSA		Province		Region
Overall	1100		126		51
Male	947		110		43
U14	150		27		12
U14 Male	121		23		10
Rapid
	RSA		Province		Region
Overall	876		66		19
Male	723		55		18
U14	191		15		8
U14 Male	145		11		8
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U14	-1		-1		-1
U14 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	86	54	62.79	108.7	1376.1	1484.8
Standard	66	40	60.61	90.2	1409.4	1499.5
Rapid	20	14	70	170	1266.4	1436.4
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	91	56	61.54	98.1	1367.6	1465.7
Standard	71	42	59.15	77.8	1396.1	1474
Rapid	20	14	70	170	1266.4	1436.4
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-11-01	1516.8	1515	1330.3	1200
2025-09-30	1499.2	1490.7	1293.6	1200
2025-09-01	1506.1	1497.1	1293.6	1200
2025-08-01	1527.4	1518	1293.6	1200
2025-07-01	1435.6	1417.7	1293.6	1200
2025-06-01	1435.6	1417.7	1293.6	1200
2025-05-01	1462.7	1362.7	1293.6	1200
2025-04-01	1271.5	1245.6	1293.6	1200
2025-03-01	1239.6	1196.3	1293.6	1200
2025-02-01	1196.8	1195.7	1200	1200
2025-01-01	1189.4	1185.6	1200	1200
2024-12-01	1189.4	1185.6	1200	1200
2024-11-01	1189.4	1185.6	1200	1200
2024-10-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-09-01	1200	1200	1200	1200
2024-05-01	1200	1200	1200	1200
2024-04-01	1200	1200	1200	1200
2024-03-01	1200	1200	1200	1200
2024-02-01	1200	1200	1200	1200
2024-01-01	1200	1200	1200	1200
2023-12-01	1200	1200	1200	1200

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	Chess Vikings Trials 2 2025 (A)	2025-10-18	2025-10-18	Standard	Buffalo City (EBC)	5	5	2.5	Yes	Analysis
2	BC Open 2025 (U10-U14)	2025-10-04	2025-10-04	Rapid	Buffalo City (EBC)	7	7	5	Yes	Analysis
3	Buffalo City Chess Clubs League 2025 (B)	2025-09-20	2025-09-20	Standard	Buffalo City (EBC)	6	5	4	Yes	Analysis
4	EC Closed 2025 (U14 Boys)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
5	Buffalo City Chess Junior Closed 2025 (U14 Open)	2025-08-16	2025-08-16	Standard	Buffalo City (EBC)	5	5	2	Yes	Analysis
6	3rd Chess Vikings Open Championship 2025 (A)	2025-08-02	2025-08-02	Standard	Buffalo City (EBC)	5	5	2	Yes	Analysis
7	BC Schools Chess Festival 2025 (U13 Open)	2025-07-26	2025-07-26	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
8	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U14 Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	5	4	Yes	Analysis
9	Eastern Cape Inter-Regional Team Chess Championship 2025 (U14)	2025-07-10	2025-07-11	Standard	Amathole (EAL)	5	3	2	Yes	Analysis
10	2025 Buffalo City Chess Trials 3 (U14)	2025-05-10	2025-05-10	Standard	Buffalo City (EBC)	5	5	2.5	Yes	Analysis
11	EC Open 2025 (U8-U14 Boys)	2025-05-02	2025-05-02	Standard	Buffalo City (EBC)	7	7	4	Yes	Analysis
12	2025 Buffalo City Chess Trials 2 (U14)	2025-04-12	2025-04-12	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
13	2025 Buffalo City Chess Trials 1 (U14)	2025-03-22	2025-03-22	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
14	Vikings Classical March 2025 (B)	2025-03-15	2025-03-15	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
15	Rapid Feb 2nd Leg 2025 (U14)	2025-02-21	2025-02-21	Rapid	Buffalo City (EBC)	8	7	6	Yes	Analysis
16	Beacon Bay Feb Rapid Chess Tournament 2025 (B)	2025-02-01	2025-02-01	Rapid	Buffalo City (EBC)	6	6	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Chess Vikings Trials 2 2025 (A)	2025-10-18	2025-10-18	Standard	Buffalo City (EBC)	5	5	2.5	Yes	Analysis
2	BC Open 2025 (U10-U14)	2025-10-04	2025-10-04	Rapid	Buffalo City (EBC)	7	7	5	Yes	Analysis
3	Buffalo City Chess Clubs League 2025 (B)	2025-09-20	2025-09-20	Standard	Buffalo City (EBC)	6	5	4	Yes	Analysis
4	EC Closed 2025 (U14 Boys)	2025-09-06	2025-09-07	Standard	Nelson Mandela Bay (ENM)	6	6	3	Yes	Analysis
5	Buffalo City Chess Junior Closed 2025 (U14 Open)	2025-08-16	2025-08-16	Standard	Buffalo City (EBC)	5	5	2	Yes	Analysis
6	3rd Chess Vikings Open Championship 2025 (A)	2025-08-02	2025-08-02	Standard	Buffalo City (EBC)	5	5	2	Yes	Analysis
7	BC Schools Chess Festival 2025 (U13 Open)	2025-07-26	2025-07-26	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
8	Eastern Cape Inter-Regional Individual Chess Championship 2025 (U14 Open)	2025-07-11	2025-07-12	Standard	Amathole (EAL)	6	5	4	Yes	Analysis
9	Eastern Cape Inter-Regional Team Chess Championship 2025 (U14)	2025-07-10	2025-07-11	Standard	Amathole (EAL)	5	3	2	Yes	Analysis
10	2025 Buffalo City Chess Trials 3 (U14)	2025-05-10	2025-05-10	Standard	Buffalo City (EBC)	5	5	2.5	Yes	Analysis
11	EC Open 2025 (U8-U14 Boys)	2025-05-02	2025-05-02	Standard	Buffalo City (EBC)	7	7	4	Yes	Analysis
12	2025 Buffalo City Chess Trials 2 (U14)	2025-04-12	2025-04-12	Standard	Buffalo City (EBC)	5	5	4	Yes	Analysis
13	2025 Buffalo City Chess Trials 1 (U14)	2025-03-22	2025-03-22	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
14	Vikings Classical March 2025 (B)	2025-03-15	2025-03-15	Standard	Buffalo City (EBC)	5	5	3	Yes	Analysis
15	Rapid Feb 2nd Leg 2025 (U14)	2025-02-21	2025-02-21	Rapid	Buffalo City (EBC)	8	7	6	Yes	Analysis
16	Beacon Bay Feb Rapid Chess Tournament 2025 (B)	2025-02-01	2025-02-01	Rapid	Buffalo City (EBC)	6	6	3	Yes	Analysis
17	East London Open 2024 (B)	2024-10-05	2024-10-05	Standard	Buffalo City (EBC)	5	5	2	Yes	Analysis

#	Games	Start				End
1	9	Tournament Eastern Cape Inter-Regional Team Chess Championship 2025				Tournament BC Schools Chess Festival 2025
		date 2025-07-10	rnd 3	type Standard	result 1	date 2025-07-26	rnd 2	type Standard	result 1
		Opponent Tembani, A (Anothando)				Opponent Nkomo, M (Mnqobi)
2	5	Tournament Buffalo City Chess Clubs League 2025				Tournament BC Open 2025
		date 2025-09-20	rnd 3	type Standard	result 1	date 2025-10-04	rnd 1	type Rapid	result 1
		Opponent Mabongo, L (Luthando)				Opponent Sithole, K (Khwezi)
3	5	Tournament EC Open 2025				Tournament 2025 Buffalo City Chess Trials 3
		date 2025-05-02	rnd 6	type Standard	result 1	date 2025-05-10	rnd 3	type Standard	result 1
		Opponent Ndongeni, S (Senkosi)				Opponent Fricke, L (Leon)

#	Games	Start				End
1	9	Tournament Eastern Cape Inter-Regional Team Chess Championship 2025				Tournament BC Schools Chess Festival 2025
		date 2025-07-10	rnd 3	type Standard	result 1	date 2025-07-26	rnd 2	type Standard	result 1
		Opponent Tembani, A (Anothando)				Opponent Nkomo, M (Mnqobi)
2	5	Tournament EC Open 2025				Tournament 2025 Buffalo City Chess Trials 3
		date 2025-05-02	rnd 6	type Standard	result 1	date 2025-05-10	rnd 3	type Standard	result 1
		Opponent Ndongeni, S (Senkosi)				Opponent Fricke, L (Leon)
3	4	Tournament 2025 Buffalo City Chess Trials 1				Tournament 2025 Buffalo City Chess Trials 2
		date 2025-03-22	rnd 5	type Standard	result 1	date 2025-04-12	rnd 3	type Standard	result 1
		Opponent Jagers, N (Noah)				Opponent Lin, Y (Yihang)

#	Games	Start				End
1	4	Tournament Rapid Feb 2nd Leg 2025				Tournament Rapid Feb 2nd Leg 2025
		date 2025-02-21	rnd 1	type Rapid	result 1	date 2025-02-21	rnd 4	type Rapid	result 1
		Opponent Lekota, T (Tsepang)				Opponent Masoeu, S (Senogo)
2	3	Tournament Beacon Bay Feb Rapid Chess Tournament 2025				Tournament Beacon Bay Feb Rapid Chess Tournament 2025
		date 2025-02-01	rnd 1	type Rapid	result 1	date 2025-02-01	rnd 3	type Rapid	result 1
		Opponent Balura, T (Tumi)				Opponent Fourie, Z (Zion)
3	2	Tournament Rapid Feb 2nd Leg 2025				Tournament Rapid Feb 2nd Leg 2025
		date 2025-02-21	rnd 6	type Rapid	result 1	date 2025-02-21	rnd 7	type Rapid	result 1
		Opponent Basson, Z (Zachary)				Opponent Balfour, O (Omeleza)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Eastern Cape Inter-Regional Team Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-10	rnd 3	type Standard	result 1	date 2025-07-12	rnd 4	type Standard	result 1
		Opponent Tembani, A (Anothando)				Opponent Smile, O (Osakhe)
2	4	Tournament 2025 Buffalo City Chess Trials 1				Tournament 2025 Buffalo City Chess Trials 2
		date 2025-03-22	rnd 5	type Standard	result 1	date 2025-04-12	rnd 3	type Standard	result 1
		Opponent Jagers, N (Noah)				Opponent Lin, Y (Yihang)
3	4	Tournament Rapid Feb 2nd Leg 2025				Tournament Rapid Feb 2nd Leg 2025
		date 2025-02-21	rnd 1	type Rapid	result 1	date 2025-02-21	rnd 4	type Rapid	result 1
		Opponent Lekota, T (Tsepang)				Opponent Masoeu, S (Senogo)

#	Games	Start				End
1	5	Tournament Eastern Cape Inter-Regional Team Chess Championship 2025				Tournament Eastern Cape Inter-Regional Individual Chess Championship 2025
		date 2025-07-10	rnd 3	type Standard	result 1	date 2025-07-12	rnd 4	type Standard	result 1
		Opponent Tembani, A (Anothando)				Opponent Smile, O (Osakhe)
2	4	Tournament 2025 Buffalo City Chess Trials 1				Tournament 2025 Buffalo City Chess Trials 2
		date 2025-03-22	rnd 5	type Standard	result 1	date 2025-04-12	rnd 3	type Standard	result 1
		Opponent Jagers, N (Noah)				Opponent Lin, Y (Yihang)
3	3	Tournament EC Open 2025				Tournament 2025 Buffalo City Chess Trials 3
		date 2025-05-02	rnd 6	type Standard	result 1	date 2025-05-10	rnd 1	type Standard	result 1
		Opponent Ndongeni, S (Senkosi)				Opponent Jonse, S (Sibahle)

#	Games	Start				End
1	4	Tournament Rapid Feb 2nd Leg 2025				Tournament Rapid Feb 2nd Leg 2025
		date 2025-02-21	rnd 1	type Rapid	result 1	date 2025-02-21	rnd 4	type Rapid	result 1
		Opponent Lekota, T (Tsepang)				Opponent Masoeu, S (Senogo)
2	3	Tournament Beacon Bay Feb Rapid Chess Tournament 2025				Tournament Beacon Bay Feb Rapid Chess Tournament 2025
		date 2025-02-01	rnd 1	type Rapid	result 1	date 2025-02-01	rnd 3	type Rapid	result 1
		Opponent Balura, T (Tumi)				Opponent Fourie, Z (Zion)
3	2	Tournament Rapid Feb 2nd Leg 2025				Tournament Rapid Feb 2nd Leg 2025
		date 2025-02-21	rnd 6	type Rapid	result 1	date 2025-02-21	rnd 7	type Rapid	result 1
		Opponent Basson, Z (Zachary)				Opponent Balfour, O (Omeleza)

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	Mabhera ,JP (Jedidiah Panashe)	4	0	-425	4	0	-425	0	0	0	0	0	0
1	Mabhera ,JP (Jedidiah Panashe)	4	1629.8	1204.8	4	1634.8	1204.8	0	0	0	0	0	0
2	Canham ,E (Ethan)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
2	Canham ,E (Ethan)	3	1462	1320.4	3	1455.7	1320.4	0	0	0	0	0	0
3	Fricke ,L (Leon)	3	1	-141.7	3	1	-141.7	0	0	0	0	0	0
3	Fricke ,L (Leon)	3	1554.4	1412.7	3	1555.3	1412.7	0	0	0	0	0	0
4	Lin ,Y (Yihang)	3	2	141.7	2	2	425	1	0	-425	0	0	0
4	Lin ,Y (Yihang)	3	1373.8	1515.4	2	1400.1	1798.8	1	1200	948.8	0	0	0
5	Masoeu ,S (Senogo)	3	1.5	0	1	0.5	0	2	1	0	0	0	0
5	Masoeu ,S (Senogo)	3	1474.9	1474.9	1	1603	1474.9	2	1183.1	1474.9	0	0	0
6	Fourie ,Z (Zion)	3	3	425	1	1	425	2	2	425	0	0	0
6	Fourie ,Z (Zion)	3	1126	1551	1	1136.6	1551	2	1200	1551	0	0	0
7	Adams ,C (Chezhaan Ethan)	2	1	0	2	1	0	0	0	0	0	0	0
7	Adams ,C (Chezhaan Ethan)	2	1371.2	1371.2	2	1385.4	1371.2	0	0	0	0	0	0
8	Smile ,O (Osakhe)	2	2	425	2	2	425	0	0	0	0	0	0
8	Smile ,O (Osakhe)	2	1289.9	1714.9	2	1264.4	1714.9	0	0	0	0	0	0
9	Balfour ,O (Omeleza)	2	2	425	1	1	425	1	1	425	0	0	0
9	Balfour ,O (Omeleza)	2	1233.4	1658.4	1	1329.4	1658.4	1	1143.9	1658.4	0	0	0
10	Kim ,H (Haeol)	2	0	-425	1	0	-425	1	0	-425	0	0	0
10	Kim ,H (Haeol)	2	1490.9	1065.9	1	1455	1065.9	1	1321.6	1065.9	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

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PLAYER PAGE

Personal

Beukman, J (Jonah)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms