Chess South Africa Ratings Database

PLAYER PAGE

Personal

Duitsjan, L (Luke)

Chess SA id

1150311005

FIDE id

Date of birth

2015-06-12 (U12)

Gender

Male

Region

Eden (WEG)

Citizen

RSA

Titles

Chess SA registered

Last active game

2025-08-30

Personal details last changed

1900-01-01

Junior GPX Games

22.5

Junior GPX Points

1209.7

Item	Main	Standard	Rapid	Blitz
Rating	1261.5	1256.9	1228.7	1200
Raw rating	1261.5	1256.9	1228.7	1200
Weighted rating	1210.2	1218.3	1188.7	1200
Weighted performance	1251.2	0	0	0
Floor	761.5	758.9	728.7	700
K-factor	36	36	36	36
Min/Max rating change allowed	151.9	152.9	159.2	165.8
Highest rating	1261.5 2025-09-30	1258.9 2025-03-01	1228.7 2025-09-30	1200 2024-09-01
Highest raw rating	1261.5 2025-09-30	1258.9 2025-03-01	1228.7 2025-09-30	1200 2024-09-01
Highest weighted rating	1244.5 2025-04-01	1258.9 2025-04-01	1200 2024-09-01	1200 2024-09-01
Highest weighted performance	1251.2 2025-09-30	1200 2024-09-01	1200 2024-12-01	1200 2024-09-01

Prediction
Item	Main	Standard	Rapid	Blitz
Rating change	0	0	0	0
New rating	1261.5	1256.9	1228.7	1200
Analysis
Rating	1261.5	1256.9	1228.7	1200
Raw rating	1261.5	1256.9	1228.7	1200
Weighted rating	1210.2	1218.3	1188.7
Weighted performance	1251.2	0	0
K-factor	36	36	36	36
Floor	761.5	758.9	728.7	700
Max/Min rating change allowed	151.9	152.9	159.2	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	1261.5	1256.9	1228.7	1200
New weighted rating	1214.7	1222	1191.8	1200
New weighted performance	1250.7	0	0	0
Temp new rating	1261.5	1256.9	1228.7	1200
Temp new rating +/-	0	0	0	0
Final new rating +/-	0	0	0	0
New rating	1261.5	1256.9	1228.7	1200
New K-factor	36	36	36	36
New floor	761.5	758.9	728.7	700

Item	Main	Standard	Rapid
	0	0	0
	26	20	6
	5	0	5
	0	0	0
	0	0	0
	0	0	0
History	31	20	11

Games since
	Main 31	Standard 20		Rapid 11		Blitz 0
Gender	Male
Age group	U12
Region	Eden (WEG)
Province	Western Cape (WC)
Main
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
Standard
	RSA		Province		Region
Overall	-1		-1		-1
Male	-1		-1		-1
U12	-1		-1		-1
U12 Male	-1		-1		-1
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	15.5	59.62	81.7	1208.8	1290.5
Standard	20	11.5	57.5	63.8	1199	1262.8
Rapid	6	4	66.67	141.7	1241.3	1383
Blitz	0	0	0	0	0	0
History
	Games	Score	%	Dp	AvgOpp	Performance
Main	31	17	54.84	41.1	1207.3	1248.5
Standard	20	11.5	57.5	63.8	1199	1262.8
Rapid	11	5.5	50	0	1222.5	1222.5
Blitz	0	0	0	0	0	0

Date	Main	Standard	Rapid	Blitz
2025-09-30	1261.5	1256.9	1228.7	1200
2025-09-01	1242.1	1256.9	1187.3	1200
2025-08-01	1202.1	1210.4	1187.3	1200
2025-07-01	1202	1210	1187.3	1200
2025-06-01	1201.7	1209.5	1187.3	1200
2025-05-01	1200	1206.6	1187.3	1200
2025-04-01	1244.5	1258.9	1187.3	1200
2025-03-01	1244.5	1258.9	1187.3	1200
2025-02-01	1193.4	1200	1185.9	1200
2025-01-01	1182	1200	1161.6	1200
2024-12-01	1182	1200	1161.6	1200
2024-11-01	1182	1200	1161.6	1200
2024-10-01	1182	1200	1161.6	1200
2024-09-01	1200	1200	1200	1200
2024-08-01	1200	1200	1200	1200
2024-07-01	1200	1200	1200	1200
2024-06-01	1200	1200	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	Tsogo Sun Moves For Life Learners Tournament 2025 (U11)	2025-08-30	2025-08-30	Rapid	Eden (WEG)	6	6	4	Yes	Analysis
2	Mossel Bay Top Schools 2025 (U11 Open)	2025-08-02	2025-08-02	Standard	Eden (WEG)	5	5	4	Yes	Analysis
3	Eden Chess Trials 2 2025 (U12)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	10	3.5	Yes	Analysis
4	Eden Schools Chess Trials 1 2025 (U11 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	0	0	No	Analysis
5	Mossel Bay Schools Trials 2 2025 (U11 Boys)	2025-02-22	2025-02-22	Standard	Eden (WEG)	5	5	4	Yes	Analysis

Last 500 tournaments since 01 January 2018

#	Tournament	Start	End	Type	Host	Rounds	Games	Score	Cfr	Analysis
1	Tsogo Sun Moves For Life Learners Tournament 2025 (U11)	2025-08-30	2025-08-30	Rapid	Eden (WEG)	6	6	4	Yes	Analysis
2	Mossel Bay Top Schools 2025 (U11 Open)	2025-08-02	2025-08-02	Standard	Eden (WEG)	5	5	4	Yes	Analysis
3	Eden Chess Trials 2 2025 (U12)	2025-03-15	2025-04-12	Standard	Eden (WEG)	10	10	3.5	Yes	Analysis
4	Eden Schools Chess Trials 1 2025 (U11 Boys)	2025-03-08	2025-03-08	Standard	Eden (WEG)	5	0	0	No	Analysis
5	Mossel Bay Schools Trials 2 2025 (U11 Boys)	2025-02-22	2025-02-22	Standard	Eden (WEG)	5	5	4	Yes	Analysis
6	Tsogo Sun Moves For Life Learners Tournament 2024 (U9)	2024-08-31	2024-08-31	Rapid	Eden (WEG)	6	5	1.5	Yes	Analysis

#	Games	Start				End
1	5	Tournament Eden Chess Trials 2 2025				Tournament Mossel Bay Top Schools 2025
		date 2025-04-12	rnd 10	type Standard	result 1	date 2025-08-02	rnd 4	type Standard	result 1
		Opponent Amsterdam, A (Anicke)				Opponent Pienaar, D (Daniel)
2	4	Tournament Mossel Bay Schools Trials 2 2025				Tournament Mossel Bay Schools Trials 2 2025
		date 2025-02-22	rnd 1	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Mentoor, L (Lij)				Opponent Schoeman, R (Ruan)
3	3	Tournament Tsogo Sun Moves For Life Learners Tournament 2025				Tournament Tsogo Sun Moves For Life Learners Tournament 2025
		date 2025-08-30	rnd 4	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Petersen, T (Teshnic)				Opponent Pietersen, L (Linsey)

#	Games	Start				End
1	5	Tournament Eden Chess Trials 2 2025				Tournament Mossel Bay Top Schools 2025
		date 2025-04-12	rnd 10	type Standard	result 1	date 2025-08-02	rnd 4	type Standard	result 1
		Opponent Amsterdam, A (Anicke)				Opponent Pienaar, D (Daniel)
2	4	Tournament Mossel Bay Schools Trials 2 2025				Tournament Mossel Bay Schools Trials 2 2025
		date 2025-02-22	rnd 1	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Mentoor, L (Lij)				Opponent Schoeman, R (Ruan)
3	2	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-04-12	rnd 7	type Standard	result 1	date 2025-04-12	rnd 8	type Standard	result 1
		Opponent Tarentaal, C (Chrisnay)				Opponent Hossain, A (Alamin)

#	Games	Start				End
1	3	Tournament Tsogo Sun Moves For Life Learners Tournament 2025				Tournament Tsogo Sun Moves For Life Learners Tournament 2025
		date 2025-08-30	rnd 4	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Petersen, T (Teshnic)				Opponent Pietersen, L (Linsey)
2	3	Tournament Tsogo Sun Moves For Life Learners Tournament 2024				Tournament Tsogo Sun Moves For Life Learners Tournament 2024
		date 2024-08-31	rnd 2	type Rapid	result 0.5	date 2024-08-31	rnd 4	type Rapid	result 0.5
		Opponent Mpangani, L (Lunje)				Opponent Nkonyana, I (Ivakele)
3	1	Tournament Tsogo Sun Moves For Life Learners Tournament 2025				Tournament Tsogo Sun Moves For Life Learners Tournament 2025
		date 2025-08-30	rnd 1	type Rapid	result 1	date 2025-08-30	rnd 1	type Rapid	result 1
		Opponent Bredenkamp, M (Melissa)				Opponent Bredenkamp, M (Melissa)

No games found.

#	Games	Start				End

#	Games	Start				End
1	5	Tournament Eden Chess Trials 2 2025				Tournament Mossel Bay Top Schools 2025
		date 2025-04-12	rnd 10	type Standard	result 1	date 2025-08-02	rnd 4	type Standard	result 1
		Opponent Amsterdam, A (Anicke)				Opponent Pienaar, D (Daniel)
2	4	Tournament Mossel Bay Schools Trials 2 2025				Tournament Mossel Bay Schools Trials 2 2025
		date 2025-02-22	rnd 1	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Mentoor, L (Lij)				Opponent Schoeman, R (Ruan)
3	3	Tournament Tsogo Sun Moves For Life Learners Tournament 2025				Tournament Tsogo Sun Moves For Life Learners Tournament 2025
		date 2025-08-30	rnd 4	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Petersen, T (Teshnic)				Opponent Pietersen, L (Linsey)

#	Games	Start				End
1	5	Tournament Eden Chess Trials 2 2025				Tournament Mossel Bay Top Schools 2025
		date 2025-04-12	rnd 10	type Standard	result 1	date 2025-08-02	rnd 4	type Standard	result 1
		Opponent Amsterdam, A (Anicke)				Opponent Pienaar, D (Daniel)
2	4	Tournament Mossel Bay Schools Trials 2 2025				Tournament Mossel Bay Schools Trials 2 2025
		date 2025-02-22	rnd 1	type Standard	result 1	date 2025-02-22	rnd 4	type Standard	result 1
		Opponent Mentoor, L (Lij)				Opponent Schoeman, R (Ruan)
3	2	Tournament Eden Chess Trials 2 2025				Tournament Eden Chess Trials 2 2025
		date 2025-04-12	rnd 7	type Standard	result 1	date 2025-04-12	rnd 8	type Standard	result 1
		Opponent Tarentaal, C (Chrisnay)				Opponent Hossain, A (Alamin)

#	Games	Start				End
1	3	Tournament Tsogo Sun Moves For Life Learners Tournament 2025				Tournament Tsogo Sun Moves For Life Learners Tournament 2025
		date 2025-08-30	rnd 4	type Rapid	result 1	date 2025-08-30	rnd 6	type Rapid	result 1
		Opponent Petersen, T (Teshnic)				Opponent Pietersen, L (Linsey)
2	1	Tournament Tsogo Sun Moves For Life Learners Tournament 2025				Tournament Tsogo Sun Moves For Life Learners Tournament 2025
		date 2025-08-30	rnd 1	type Rapid	result 1	date 2025-08-30	rnd 1	type Rapid	result 1
		Opponent Bredenkamp, M (Melissa)				Opponent Bredenkamp, M (Melissa)

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	Pietersen ,L (Linsey)	2	1	0	1	0	-425	1	1	425	0	0	0
1	Pietersen ,L (Linsey)	2	1245	1245	1	1212.1	820	1	1200	1670	0	0	0
2	Mentoor ,L (Lij)	1	1	425	1	1	425	0	0	0	0	0	0
2	Mentoor ,L (Lij)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
3	Pienaar ,D (Daniel)	1	1	425	1	1	425	0	0	0	0	0	0
3	Pienaar ,D (Daniel)	1	1200	1625	1	1200	1625	0	0	0	0	0	0
4	Manzini ,C (Chloe)	1	0	-425	1	0	-425	0	0	0	0	0	0
4	Manzini ,C (Chloe)	1	1191.1	766.1	1	1189.7	766.1	0	0	0	0	0	0
5	Heunis ,C (Cj)	1	0	-425	1	0	-425	0	0	0	0	0	0
5	Heunis ,C (Cj)	1	1194.7	769.7	1	1193.6	769.7	0	0	0	0	0	0
6	Frans ,L (Lyle)	1	1	425	1	1	425	0	0	0	0	0	0
6	Frans ,L (Lyle)	1	1182.5	1607.5	1	1180.9	1607.5	0	0	0	0	0	0
7	Meyer ,R (Ryu)	1	1	425	1	1	425	0	0	0	0	0	0
7	Meyer ,R (Ryu)	1	1196.7	1621.7	1	1200	1621.7	0	0	0	0	0	0
8	Saayman ,A (Aljurique)	1	0	-425	1	0	-425	0	0	0	0	0	0
8	Saayman ,A (Aljurique)	1	1214.4	789.4	1	1219.9	789.4	0	0	0	0	0	0
9	Amsterdam ,A (Anicke)	1	1	425	1	1	425	0	0	0	0	0	0
9	Amsterdam ,A (Anicke)	1	1085.5	1510.5	1	1081.1	1510.5	0	0	0	0	0	0
10	Schoeman ,R (Ruan)	1	1	425	1	1	425	0	0	0	0	0	0
10	Schoeman ,R (Ruan)	1	1200	1625	1	1200	1625	0	0	0	0	0	0

Norms

No norms achieved.

#	Norm	Tournament	Start	End	Rounds	Games	Score	Details

Ratings

Tournaments

Grand Prix

Statistics

Notifications

PLAYER PAGE

Personal

Duitsjan, L (Luke)

Ratings

Game statistics

Rankings

Historical performance

Last 24 raw ratings

Rating graph

Tournaments

Top 3 Streaks

Top 10 opponents most often played

Norms