Chess South Africa Ratings Database

PLAYER PAGE

Personal

Tukker, J (Jakus)

Chess SA id

1150305143

FIDE id

Date of birth

2015-01-01 (U12)

Gender

Male

Region

Tshwane (GTP)

Citizen

RSA

Titles

Chess SA registered

Yes

Last active game

2025-08-10

Personal details last changed

1900-01-01

Junior GPX Games

Junior GPX Points

1335.7

Item	Main	Standard	Rapid	Blitz
Rating	1323.9	1325.1	1200	1200
Raw rating	1323.9	1325.1	1200	1200
Weighted rating	1272.8	1272.4	1200	1200
Weighted performance	1297.3	1294.3	0	0
Floor	840.6	845.6	700	700
K-factor	36	36	36	36
Min/Max rating change allowed	139	138.7	165.8	165.8
Highest rating	1340.6 2025-08-01	1345.6 2025-08-01	1200 2024-05-01	1200 2024-05-01
Highest raw rating	1340.6 2025-08-01	1345.6 2025-08-01	1200 2024-05-01	1200 2024-05-01
Highest weighted rating	1266.1 2025-09-01	1265.6 2025-09-01	1200 2024-05-01	1200 2024-05-01
Highest weighted performance	1332.2 2025-08-01	1329.5 2024-09-01	1200 2024-05-01	1200 2024-05-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1323.9	1325.1	1200	1200
Analysis
Rating	1323.9	1325.1	1200	1200
Raw rating	1323.9	1325.1	1200	1200
Weighted rating	1272.8	1272.4	1200
Weighted performance	1297.3	1294.3	0
K-factor	36	36	36	36
Floor	840.6	845.6	700	700
Max/Min rating change allowed	139	138.7	165.8	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	1323.9	1325.1	1200	1200
New weighted rating	1279.1	1278.8	1200	1200
New weighted performance	1296.8	1293.8	0	0
Temp new rating	1323.9	1325.1	1200	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1323.9	1325.1	1200	1200
New K-factor	36	36	36	36
New floor	840.6	845.6	700	700

Item	Main	Standard
	0	0
	26	26
	37	37
	0	0
	0	0
	0	0
History	63	63

Games since
	Main 63	Standard 63		Rapid 0		Blitz 0
Gender	Male
Age group	U12
Region	Tshwane (GTP)
Province	Gauteng (GT)
Main
	RSA		Province		Region
Overall	2951		994		355
Male	2340		785		276
U12	446		150		55
U12 Male	321		106		34
Standard
	RSA		Province		Region
Overall	2833		1024		394
Male	2265		822		311
U12	411		154		59
U12 Male	302		110		38
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 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	26	13.5	51.92	16.3	1343	1359.4
Standard	26	13.5	51.92	16.3	1343	1359.4
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	63	31	49.21	-6.7	1286.5	1279.8
Standard	63	31	49.21	-6.7	1286.5	1279.8
Rapid	0	0	0	0	0	0
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1323.9	1325.1	1200	1200
2025-09-01	1323.9	1325.1	1200	1200
2025-08-01	1340.6	1345.6	1200	1200
2025-07-01	1301.8	1299	1200	1200
2025-06-01	1301.8	1299	1200	1200
2025-05-01	1301.8	1299	1200	1200
2025-04-01	1301.8	1299	1200	1200
2025-03-01	1301.8	1299	1200	1200
2025-02-01	1312.4	1310.2	1200	1200
2025-01-01	1254	1255.4	1200	1200
2024-12-01	1233.4	1236	1200	1200
2024-11-01	1233.4	1236	1200	1200
2024-10-01	1233.4	1236	1200	1200
2024-09-01	1186	1184	1200	1200
2024-08-01	1178.8	1175.6	1200	1200
2024-07-01	1183.1	1179.6	1200	1200
2024-06-01	1183.1	1179.6	1200	1200
2024-08-01	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
2023-11-01	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	2025 Etienne Lewis Closed Chess Tournament (U12)	2025-08-08	2025-08-10	Standard	Tshwane (GTP)	7	7	3	Yes	Analysis
2	2025 Menlo Open (U12)	2025-07-26	2025-07-26	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
3	2025 Wynie Robbertse Chess Tournament (U12)	2025-07-19	2025-07-19	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
4	2025 Piet Robbertse Fide Rated Open Chess Tournament (D)	2025-02-01	2025-02-02	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
5	2025 Tshwane Chess OPEN Registration Tournament (U12)	2025-01-25	2025-01-25	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	2025 Etienne Lewis Closed Chess Tournament (U12)	2025-08-08	2025-08-10	Standard	Tshwane (GTP)	7	7	3	Yes	Analysis
2	2025 Menlo Open (U12)	2025-07-26	2025-07-26	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
3	2025 Wynie Robbertse Chess Tournament (U12)	2025-07-19	2025-07-19	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
4	2025 Piet Robbertse Fide Rated Open Chess Tournament (D)	2025-02-01	2025-02-02	Standard	Tshwane (GTP)	5	4	2	Yes	Analysis
5	2025 Tshwane Chess OPEN Registration Tournament (U12)	2025-01-25	2025-01-25	Standard	Tshwane (GTP)	5	5	3	Yes	Analysis
6	Gauteng Inter-Region at UJ 2024 (U10 Open)	2024-12-07	2024-12-08	Standard	Johannesburg Metro (GJM)	5	5	3	Yes	Analysis
7	2024 Etienne Lewis (U10)	2024-08-30	2024-09-01	Standard	Tshwane (GTP)	7	7	3.5	Yes	Analysis
8	2024 Jacaranda Round Robin Open Chess Tournament (M)	2024-08-17	2024-08-17	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
9	2024 Alekhine Open Chess Tournament (U10)	2024-08-09	2024-08-09	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
10	2024 Midstream College Open Chess Tournament (U10)	2024-07-20	2024-07-20	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis
11	Menlopark Open Chess Tournament 2024 (U10)	2024-07-13	2024-07-13	Standard	Tshwane (GTP)	5	5	2.5	Yes	Analysis
12	2024 Centurion Club Closed Chess Tournament (B)	2024-05-25	2024-05-25	Standard	Tshwane (GTP)	5	5	2	Yes	Analysis

#	Games	Start				End
1	4	Tournament 2024 Etienne Lewis				Tournament Gauteng Inter-Region at UJ 2024
		date 2024-09-01	rnd 6	type Standard	result 1	date 2024-12-07	rnd 2	type Standard	result 0.5
		Opponent Rocher, G (Gideon)				Opponent Roder, A (Adam)
2	3	Tournament 2025 Wynie Robbertse Chess Tournament				Tournament 2025 Wynie Robbertse Chess Tournament
		date 2025-07-19	rnd 2	type Standard	result 1	date 2025-07-19	rnd 4	type Standard	result 1
		Opponent Vorster, J (James)				Opponent Grobbelaar, M (Mienje)
3	3	Tournament 2025 Tshwane Chess OPEN Registration Tournament				Tournament 2025 Tshwane Chess OPEN Registration Tournament
		date 2025-01-25	rnd 2	type Standard	result 1	date 2025-01-25	rnd 4	type Standard	result 1
		Opponent Louw, J (Jean)				Opponent Vorster, M (Meandri)

#	Games	Start				End
1	4	Tournament 2024 Etienne Lewis				Tournament Gauteng Inter-Region at UJ 2024
		date 2024-09-01	rnd 6	type Standard	result 1	date 2024-12-07	rnd 2	type Standard	result 0.5
		Opponent Rocher, G (Gideon)				Opponent Roder, A (Adam)
2	3	Tournament 2025 Wynie Robbertse Chess Tournament				Tournament 2025 Wynie Robbertse Chess Tournament
		date 2025-07-19	rnd 2	type Standard	result 1	date 2025-07-19	rnd 4	type Standard	result 1
		Opponent Vorster, J (James)				Opponent Grobbelaar, M (Mienje)
3	3	Tournament 2025 Tshwane Chess OPEN Registration Tournament				Tournament 2025 Tshwane Chess OPEN Registration Tournament
		date 2025-01-25	rnd 2	type Standard	result 1	date 2025-01-25	rnd 4	type Standard	result 1
		Opponent Louw, J (Jean)				Opponent Vorster, M (Meandri)

No games found.

#	Games	Start				End

No games found.

#	Games	Start				End

#	Games	Start				End
1	3	Tournament 2025 Wynie Robbertse Chess Tournament				Tournament 2025 Wynie Robbertse Chess Tournament
		date 2025-07-19	rnd 2	type Standard	result 1	date 2025-07-19	rnd 4	type Standard	result 1
		Opponent Vorster, J (James)				Opponent Grobbelaar, M (Mienje)
2	3	Tournament 2025 Tshwane Chess OPEN Registration Tournament				Tournament 2025 Tshwane Chess OPEN Registration Tournament
		date 2025-01-25	rnd 2	type Standard	result 1	date 2025-01-25	rnd 4	type Standard	result 1
		Opponent Louw, J (Jean)				Opponent Vorster, M (Meandri)
3	2	Tournament 2024 Etienne Lewis				Tournament 2024 Etienne Lewis
		date 2024-08-31	rnd 2	type Standard	result 1	date 2024-08-31	rnd 3	type Standard	result 1
		Opponent Erasmus, T (Trisa)				Opponent Grobbelaar, M (Mari)

#	Games	Start				End
1	3	Tournament 2025 Wynie Robbertse Chess Tournament				Tournament 2025 Wynie Robbertse Chess Tournament
		date 2025-07-19	rnd 2	type Standard	result 1	date 2025-07-19	rnd 4	type Standard	result 1
		Opponent Vorster, J (James)				Opponent Grobbelaar, M (Mienje)
2	3	Tournament 2025 Tshwane Chess OPEN Registration Tournament				Tournament 2025 Tshwane Chess OPEN Registration Tournament
		date 2025-01-25	rnd 2	type Standard	result 1	date 2025-01-25	rnd 4	type Standard	result 1
		Opponent Louw, J (Jean)				Opponent Vorster, M (Meandri)
3	2	Tournament 2024 Etienne Lewis				Tournament 2024 Etienne Lewis
		date 2024-08-31	rnd 2	type Standard	result 1	date 2024-08-31	rnd 3	type Standard	result 1
		Opponent Erasmus, T (Trisa)				Opponent Grobbelaar, M (Mari)

No games found.

#	Games	Start				End

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	Wiehahn ,L (Luke)	2	0	-425	2	0	-425	0	0	0	0	0	0
1	Wiehahn ,L (Luke)	2	1316.4	891.4	2	1326.9	891.4	0	0	0	0	0	0
2	Rahlaga ,K (Kaelo Alupheli)	2	0	-425	2	0	-425	0	0	0	0	0	0
2	Rahlaga ,K (Kaelo Alupheli)	2	1347.2	922.2	2	1331.4	922.2	0	0	0	0	0	0
3	Vorster ,M (Meandri)	2	1	0	2	1	0	0	0	0	0	0	0
3	Vorster ,M (Meandri)	2	1466.3	1466.3	2	1465.1	1466.3	0	0	0	0	0	0
4	Kgwale ,O (Obotegile)	2	1	0	2	1	0	0	0	0	0	0	0
4	Kgwale ,O (Obotegile)	2	1365.8	1365.8	2	1373.8	1365.8	0	0	0	0	0	0
5	Khosana ,O (Onalerona)	2	1	0	2	1	0	0	0	0	0	0	0
5	Khosana ,O (Onalerona)	2	1491.2	1491.2	2	1490.2	1491.2	0	0	0	0	0	0
6	Smit ,J (Juanru)	2	0	-425	2	0	-425	0	0	0	0	0	0
6	Smit ,J (Juanru)	2	1479.2	1054.2	2	1481	1054.2	0	0	0	0	0	0
7	Mokwena ,Y (Yaseen)	1	1	425	1	1	425	0	0	0	0	0	0
7	Mokwena ,Y (Yaseen)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
8	Barnes ,D (Derek)	1	0.5	0	1	0.5	0	0	0	0	0	0	0
8	Barnes ,D (Derek)	1	1219.4	1219.4	1	1221	1219.4	0	0	0	0	0	0
9	Mogano ,O (O'Bonolo)	1	1	425	1	1	425	0	0	0	0	0	0
9	Mogano ,O (O'Bonolo)	1	1108.4	1533.4	1	1090	1533.4	0	0	0	0	0	0
10	Fourie ,M (Marchant)	1	0	-425	1	0	-425	0	0	0	0	0	0
10	Fourie ,M (Marchant)	1	1226	801	1	1220.9	801	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Tukker, J (Jakus)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms