Chess South Africa Ratings Database

PLAYER PAGE

Personal

Koti, J (Jackie)

Chess SA id

1080308399

FIDE id

Date of birth

2008-09-30 (U18)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-10-11

Personal details last changed

1900-01-01

Junior GPX Games

27.2

Junior GPX Points

1251.7

Item	Main	Standard	Rapid	Blitz
Rating	1520.2	1440.9	1269.9	1469.1
Raw rating	1520.2	1435.6	1269.9	1469.1
Weighted rating	1438.9	1351.7	1248.7	1387.6
Weighted performance	1454.2	1440.9	0	1444.5
Floor	1020.2	935.6	771.2	969.1
K-factor	32	32	36	32
Min/Max rating change allowed	105.1	118.5	150.1	113
Highest rating	1520.2 2025-11-01	1501.6 2024-09-01	1316.2 2024-08-01	1473.4 2024-10-01
Highest raw rating	1520.2 2025-11-01	1435.6 2025-11-01	1271.2 2025-03-01	1469.1 2025-09-30
Highest weighted rating	1438.9 2025-11-01	1351.7 2025-11-01	1271.2 2024-10-01	1439.6 2024-10-01
Highest weighted performance	1516.5 2024-10-01	1501.6 2024-09-01	1316.2 2024-08-01	1473.4 2024-10-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	-5.3	0	0
New rating	1520.2	1435.6	1269.9	1469.1
Analysis
Rating	1520.2	1440.9	1269.9	1469.1
Raw rating	1520.2	1435.6	1269.9	1469.1
Weighted rating	1438.9	1351.7	1248.7
Weighted performance	1454.2	1440.9	0
K-factor	32	32	36	32
Floor	1020.2	935.6	771.2	969.1
Max/Min rating change allowed	105.1	118.5	150.1	113
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	1520.2	1435.6	1269.9	1469.1
New weighted rating	1451.2	1362.2	1251.7	1398.7
New weighted performance	1445.6	1432	0	1435.8
Temp new rating	1520.2	1435.6	1269.9	1469.1
Temp new rating +/-	0	-5.3	0	0
Final new rating +/-	0	-5.3	0	0
New rating	1520.2	1435.6	1269.9	1469.1
New K-factor	32	32	36	32
New floor	1020.2	935.6	771.2	969.1

Item	Main	Standard	Rapid	Blitz
	0	0	0	0
	47	9	11	27
	44	16	5	23
	0	0	0	0
	0	0	0	0
	0	0	0	0
History	91	25	16	50

Games since
	Main 91	Standard 25		Rapid 16		Blitz 50
Gender	Male
Age group	U18
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	1125		352		77
Male	976		302		68
U18	176		53		10
U18 Male	157		47		10
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Rapid
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U18	-1		-1		-1
U18 Male	-1		-1		-1
Blitz
	RSA		Province		Region
Overall	143		68		20
Male	136		64		18
U18	11		4		1
U18 Male	11		4		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	47	28	59.57	81.4	1447.1	1528.5
Standard	9	7	77.78	236.1	1336.9	1573
Rapid	11	6	54.55	38.6	1453.3	1491.9
Blitz	27	15	55.56	47.2	1481.3	1528.6
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	91	58	63.74	116.8	1440.6	1557.3
Standard	25	18	72	187	1352.5	1539.5
Rapid	16	9	56.25	53.1	1405.9	1459
Blitz	50	31	62	102	1495.7	1597.7

Date	Main	Standard	Rapid	Blitz
2025-11-01	1520.2	1435.6	1269.9	1469.1
2025-09-30	1507.9	1408.4	1269.9	1469.1
2025-09-01	1504.9	1408.4	1269.9	1456.9
2025-08-01	1498.5	1386.8	1269.9	1456.9
2025-07-01	1512.3	1386.8	1271.2	1439.6
2025-06-01	1509.3	1386.8	1271.2	1416
2025-05-01	1510.7	1386.8	1271.2	1408.3
2025-04-01	1510.7	1386.8	1271.2	1408.3
2025-03-01	1510.7	1386.8	1271.2	1408.3
2025-02-01	1494	1386.8	1225.6	1408.3
2025-01-01	1480.3	1386.8	1225.6	1408.3
2024-12-01	1480.3	1386.8	1225.6	1408.3
2024-11-01	1382.2	1282.4	1225.6	1408.3
2024-10-01	1340.5	1282.4	1225.6	1365.8
2024-09-01	1225.2	1200	1225.6	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	Eden League 2025 (First Division)	2025-10-11	2025-10-11	Standard	Eden (WEG)	5	5	4	Yes	Analysis
2	Pacaltsdorp Open 2025 (Open)	2025-08-29	2025-08-29	Blitz	Eden (WEG)	7	7	4	Yes	Analysis
3	2025 Eden Open & Women's Tournament (Advanced)	2025-08-23	2025-08-23	Standard	Eden (WEG)	5	4	3	Yes	Analysis
4	Interclub Blitz 3 2025	2025-07-30	2025-07-30	Blitz	Eden (WEG)	6	6	3	Yes	Analysis
5	Knysna Oyster Festival Rapid 2025 (Open)	2025-07-12	2025-07-12	Rapid	Eden (WEG)	6	6	3	Yes	Analysis
6	InterClub Blitz 3 2025	2025-06-12	2025-06-12	Blitz	Eden (WEG)	6	6	5	Yes	Analysis
7	InterClub Blitz 2 2025	2025-05-08	2025-05-08	Blitz	Eden (WEG)	10	8	3	Yes	Analysis
8	Eden Rapid 2025 (A)	2025-02-23	2025-02-23	Rapid	Eden (WEG)	6	5	3	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Eden League 2025 (First Division)	2025-10-11	2025-10-11	Standard	Eden (WEG)	5	5	4	Yes	Analysis
2	Pacaltsdorp Open 2025 (Open)	2025-08-29	2025-08-29	Blitz	Eden (WEG)	7	7	4	Yes	Analysis
3	2025 Eden Open & Women's Tournament (Advanced)	2025-08-23	2025-08-23	Standard	Eden (WEG)	5	4	3	Yes	Analysis
4	Interclub Blitz 3 2025	2025-07-30	2025-07-30	Blitz	Eden (WEG)	6	6	3	Yes	Analysis
5	Knysna Oyster Festival Rapid 2025 (Open)	2025-07-12	2025-07-12	Rapid	Eden (WEG)	6	6	3	Yes	Analysis
6	InterClub Blitz 3 2025	2025-06-12	2025-06-12	Blitz	Eden (WEG)	6	6	5	Yes	Analysis
7	InterClub Blitz 2 2025	2025-05-08	2025-05-08	Blitz	Eden (WEG)	10	8	3	Yes	Analysis
8	Eden Rapid 2025 (A)	2025-02-23	2025-02-23	Rapid	Eden (WEG)	6	5	3	Yes	Analysis
9	Eden Closed 2024 (Men)	2024-11-23	2024-11-24	Standard	Eden (WEG)	5	5	2	Yes	Analysis
10	Eden Gambit Chess Tournament 2024 (B)	2024-11-02	2024-11-02	Standard	Eden (WEG)	5	5	4	Yes	Analysis
11	InterClub Blitz 5 2024	2024-10-07	2024-10-07	Blitz	Eden (WEG)	6	6	5	Yes	Analysis
12	Mossel Bay Open 2024 (B)	2024-09-21	2024-09-21	Standard	Eden (WEG)	6	6	5	Yes	Analysis
13	InterClub Blitz 4 2024	2024-09-04	2024-09-04	Blitz	Eden (WEG)	10	8	6	Yes	Analysis
14	Eden Blitz 2024	2024-08-30	2024-08-30	Blitz	Eden (WEG)	9	9	5	Yes	Analysis
15	Eden Rapid 2024 (B)	2024-08-03	2024-08-03	Rapid	Eden (WEG)	6	5	3	Yes	Analysis

#	Games	Start				End
1	9	Tournament Mossel Bay Open 2024				Tournament InterClub Blitz 5 2024
		date 2024-09-21	rnd 3	type Standard	result 1	date 2024-10-07	rnd 5	type Blitz	result 1
		Opponent Gilbert, C (Calray)				Opponent Marner, B (Bryan Neil)
2	3	Tournament Pacaltsdorp Open 2025				Tournament Eden League 2025
		date 2025-08-29	rnd 7	type Blitz	result 1	date 2025-10-11	rnd 2	type Standard	result 1
		Opponent Williams, E (Elia)				Opponent Saal, M (Migael)
3	3	Tournament 2025 Eden Open & Women's Tournament				Tournament 2025 Eden Open & Women's Tournament
		date 2025-08-23	rnd 3	type Standard	result 1	date 2025-08-23	rnd 5	type Standard	result 1
		Opponent Rabie, A (Aj)				Opponent Lewis, M (Mark)

#	Games	Start				End
1	6	Tournament Mossel Bay Open 2024				Tournament Eden Gambit Chess Tournament 2024
		date 2024-09-21	rnd 3	type Standard	result 1	date 2024-11-02	rnd 2	type Standard	result 1
		Opponent Gilbert, C (Calray)				Opponent Piennaar, A (Anthen)
2	3	Tournament 2025 Eden Open & Women's Tournament				Tournament 2025 Eden Open & Women's Tournament
		date 2025-08-23	rnd 3	type Standard	result 1	date 2025-08-23	rnd 5	type Standard	result 1
		Opponent Rabie, A (Aj)				Opponent Lewis, M (Mark)
3	3	Tournament Eden Gambit Chess Tournament 2024				Tournament Eden Closed 2024
		date 2024-11-02	rnd 4	type Standard	result 1	date 2024-11-23	rnd 1	type Standard	result 1
		Opponent Punt, C (Carl)				Opponent Brink, A (Andrew)

#	Games	Start				End
1	3	Tournament Eden Rapid 2024				Tournament Eden Rapid 2024
		date 2024-08-03	rnd 3	type Rapid	result 1	date 2024-08-03	rnd 5	type Rapid	result 1
		Opponent Mlandu, J (Joshwill)				Opponent Da Silva, D (Darren)
2	2	Tournament Knysna Oyster Festival Rapid 2025				Tournament Knysna Oyster Festival Rapid 2025
		date 2025-07-12	rnd 3	type Rapid	result 1	date 2025-07-12	rnd 4	type Rapid	result 1
		Opponent Hermanus, P (Peter)				Opponent Ludick, A (Andries)
3	2	Tournament Eden Rapid 2025				Tournament Eden Rapid 2025
		date 2025-02-23	rnd 1	type Rapid	result 1	date 2025-02-23	rnd 2	type Rapid	result 1
		Opponent October, T (Tamson)				Opponent Taute, C (Clayden)

#	Games	Start				End
1	6	Tournament InterClub Blitz 4 2024				Tournament InterClub Blitz 5 2024
		date 2024-09-04	rnd 8	type Blitz	result 1	date 2024-10-07	rnd 5	type Blitz	result 1
		Opponent Marner, B (Bryan Neil)				Opponent Marner, B (Bryan Neil)
2	3	Tournament Interclub Blitz 3 2025				Tournament Interclub Blitz 3 2025
		date 2025-07-30	rnd 4	type Blitz	result 1	date 2025-07-30	rnd 6	type Blitz	result 1
		Opponent Michaels, A (Antonio)				Opponent Brewis, S (Steven)
3	3	Tournament InterClub Blitz 3 2025				Tournament InterClub Blitz 3 2025
		date 2025-06-12	rnd 1	type Blitz	result 1	date 2025-06-12	rnd 3	type Blitz	result 1
		Opponent Vutabashwe, J (Josh)				Opponent Odell, N (Nathan)

#	Games	Start				End
1	9	Tournament Mossel Bay Open 2024				Tournament InterClub Blitz 5 2024
		date 2024-09-21	rnd 3	type Standard	result 1	date 2024-10-07	rnd 5	type Blitz	result 1
		Opponent Gilbert, C (Calray)				Opponent Marner, B (Bryan Neil)
2	3	Tournament 2025 Eden Open & Women's Tournament				Tournament 2025 Eden Open & Women's Tournament
		date 2025-08-23	rnd 3	type Standard	result 1	date 2025-08-23	rnd 5	type Standard	result 1
		Opponent Rabie, A (Aj)				Opponent Lewis, M (Mark)
3	3	Tournament Interclub Blitz 3 2025				Tournament Interclub Blitz 3 2025
		date 2025-07-30	rnd 4	type Blitz	result 1	date 2025-07-30	rnd 6	type Blitz	result 1
		Opponent Michaels, A (Antonio)				Opponent Brewis, S (Steven)

#	Games	Start				End
1	6	Tournament Mossel Bay Open 2024				Tournament Eden Gambit Chess Tournament 2024
		date 2024-09-21	rnd 3	type Standard	result 1	date 2024-11-02	rnd 2	type Standard	result 1
		Opponent Gilbert, C (Calray)				Opponent Piennaar, A (Anthen)
2	3	Tournament 2025 Eden Open & Women's Tournament				Tournament 2025 Eden Open & Women's Tournament
		date 2025-08-23	rnd 3	type Standard	result 1	date 2025-08-23	rnd 5	type Standard	result 1
		Opponent Rabie, A (Aj)				Opponent Lewis, M (Mark)
3	3	Tournament Eden Gambit Chess Tournament 2024				Tournament Eden Closed 2024
		date 2024-11-02	rnd 4	type Standard	result 1	date 2024-11-23	rnd 1	type Standard	result 1
		Opponent Punt, C (Carl)				Opponent Brink, A (Andrew)

#	Games	Start				End
1	3	Tournament Eden Rapid 2024				Tournament Eden Rapid 2024
		date 2024-08-03	rnd 3	type Rapid	result 1	date 2024-08-03	rnd 5	type Rapid	result 1
		Opponent Mlandu, J (Joshwill)				Opponent Da Silva, D (Darren)
2	2	Tournament Knysna Oyster Festival Rapid 2025				Tournament Knysna Oyster Festival Rapid 2025
		date 2025-07-12	rnd 3	type Rapid	result 1	date 2025-07-12	rnd 4	type Rapid	result 1
		Opponent Hermanus, P (Peter)				Opponent Ludick, A (Andries)
3	2	Tournament Eden Rapid 2025				Tournament Eden Rapid 2025
		date 2025-02-23	rnd 1	type Rapid	result 1	date 2025-02-23	rnd 2	type Rapid	result 1
		Opponent October, T (Tamson)				Opponent Taute, C (Clayden)

#	Games	Start				End
1	6	Tournament InterClub Blitz 4 2024				Tournament InterClub Blitz 5 2024
		date 2024-09-04	rnd 8	type Blitz	result 1	date 2024-10-07	rnd 5	type Blitz	result 1
		Opponent Marner, B (Bryan Neil)				Opponent Marner, B (Bryan Neil)
2	3	Tournament Interclub Blitz 3 2025				Tournament Interclub Blitz 3 2025
		date 2025-07-30	rnd 4	type Blitz	result 1	date 2025-07-30	rnd 6	type Blitz	result 1
		Opponent Michaels, A (Antonio)				Opponent Brewis, S (Steven)
3	3	Tournament InterClub Blitz 3 2025				Tournament InterClub Blitz 3 2025
		date 2025-06-12	rnd 1	type Blitz	result 1	date 2025-06-12	rnd 3	type Blitz	result 1
		Opponent Vutabashwe, J (Josh)				Opponent Odell, N (Nathan)

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	Swart ,S (Sune)	4	2	0	1	0	-425	1	1	425	2	1	0
1	Swart ,S (Sune)	4	1538.2	1538.2	1	1451	1113.2	1	1326	1963.2	2	1413.6	1538.2
2	Da Silva ,D (Darren)	4	4	425	0	0	0	1	1	425	3	3	425
2	Da Silva ,D (Darren)	4	1346.4	1771.4	0	0	0	1	1234.8	1771.4	3	1050.3	1771.4
3	Marner ,B (Bryan Neil)	4	2	0	0	0	0	0	0	0	4	2	0
3	Marner ,B (Bryan Neil)	4	1595.3	1595.3	0	0	0	0	0	0	4	1221.2	1595.3
4	Jaars ,T (Thomas)	3	0	-425	1	0	-425	1	0	-425	1	0	-425
4	Jaars ,T (Thomas)	3	1660.2	1235.2	1	1638.7	1235.2	1	1532.7	1235.2	1	1534.7	1235.2
5	Brink ,A (Andrew)	3	3	425	1	1	425	0	0	0	2	2	425
5	Brink ,A (Andrew)	3	1547.8	1972.8	1	1575.7	1972.8	0	0	0	2	1210.8	1972.8
6	Quirk ,T (Terence)	3	2	141.7	1	0	-425	0	0	0	2	2	425
6	Quirk ,T (Terence)	3	1402.2	1543.8	1	1344.6	977.2	0	0	0	2	1305.2	1827.2
7	Taute ,C (Clayden)	3	2	141.7	0	0	0	1	1	425	2	1	0
7	Taute ,C (Clayden)	3	1754.2	1895.9	0	0	0	1	1713.5	2179.2	2	1955.5	1754.2
8	Fourie ,C (Corne)	3	0	-425	0	0	0	0	0	0	3	0	-425
8	Fourie ,C (Corne)	3	1582.1	1157.1	0	0	0	0	0	0	3	1679.7	1157.1
9	Lewis ,M (Mark)	2	2	425	2	2	425	0	0	0	0	0	0
9	Lewis ,M (Mark)	2	1314.5	1739.5	2	1286	1739.5	0	0	0	0	0	0
10	Botes ,R (Renier)	2	1	0	1	1	425	1	0	-425	0	0	0
10	Botes ,R (Renier)	2	1484.6	1484.6	1	1457.5	1909.6	1	1327.1	1059.6	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

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PLAYER PAGE

Personal

Koti, J (Jackie)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms