Opatija 2015 — player statistics

Four double-dummy measures per player plus bidding activity, over every board they played, and an opponent-adjusted (strength-of-schedule) Butler. Each table lists all players and is sortable by any column. Double-dummy is idealised — the true best play needs all four hands — so read these as tendencies, not verdicts.

Butler vs double-dummy par↑ top

IMPs per board scored above (+) or below (−) the board’s minimax par — what real bidding and play (theirs and the opponents’) added or gave away against perfect double-dummy play. Players with few boards are greyed. Click a column header to sort; filter by name or team.

#	Player	Team	Boards	/board	Total
1	T.Zhang	SX XNWY	96	+1.25	+120.0
2	R.Mao	SX XHEST	64	+0.67	+43.0
3	P.Wang	SX XHEST	64	+0.67	+43.0
4	Y.Liu	SX XNWY	96	+0.64	+61.0
5	S.Qiu	CHINA RDFZ1	64	+0.61	+39.0
6	H.Yu	CHINA RDFZ1	64	+0.61	+39.0
7	R.Li	SX HYSW	96	+0.45	+43.0
8	Y.Shang	SX HYSW	96	+0.45	+43.0
9	S.Liu	SX HYSW	96	+0.26	+25.0
10	Y.Shao	SX HYSW	96	+0.26	+25.0
11	B.Jiang	CHINA RDFZ1	96	+0.24	+23.0
12	R.Pan	CHINA RDFZ1	96	+0.24	+23.0
13	H.Dai	SX XNWY	96	+0.10	+10.0
14	L.Cheng	SX XHEST	64	-0.25	-16.0
15	Y.Yun	SX XHEST	64	-0.25	-16.0
16	Z.Wu	SX XHEST	64	-0.55	-35.0
17	Z.Yuan	SX XHEST	64	-0.55	-35.0
18	R.Wang	SX XNWY	64	-0.73	-47.0
19	P.Hulanicki	AZSUW AKADEMIABRYDZA	32	+0.44	+14.0
20	T.Kielbasa	AZSUW AKADEMIABRYDZA	32	+0.44	+14.0
21	Y.Huang	CHINESE TAIPEI WHITE	32	+0.22	+7.0
22	Y.Lan	CHINESE TAIPEI WHITE	32	+0.22	+7.0
23	W.Xue	SX XNWY	32	-0.06	-2.0
24	X.Yu	SX XHLD	16	-0.25	-4.0
25	Y.Chen	CHINESE TAIPEI BLUE	32	-0.28	-9.0
26	C.Lo	CHINESE TAIPEI BLUE	32	-0.28	-9.0
27	Z.Cai	CHINA RDFZ1	32	-0.34	-11.0
28	Y.Ding	CHINA RDFZ1	32	-0.34	-11.0
29	M.Li	SX XHLD	32	-0.66	-21.0
30	Y.Lee	CHINESE TAIPEI BLUE	32	-0.66	-21.0
31	M.Wu	CHINESE TAIPEI BLUE	32	-0.66	-21.0
32	K.Kopka	AZSUW AKADEMIABRYDZA	32	-0.81	-26.0
33	O.Trybus	AZSUW AKADEMIABRYDZA	32	-0.81	-26.0
34	Y.Xie	SX XHLD	16	-1.06	-17.0
35	Y.Chen	SX XHLD	32	-1.16	-37.0
36	H.Shang	SX XHLD	32	-1.16	-37.0
37	K.Chang	CHINESE TAIPEI WHITE	16	-2.56	-41.0
38	C.Chiu	CHINESE TAIPEI WHITE	16	-2.56	-41.0
39	Y.Chu	CHINESE TAIPEI WHITE	16	-3.00	-48.0
40	H.Fan	CHINESE TAIPEI WHITE	16	-3.00	-48.0

Opening-lead accuracy↑ top

How often a player’s opening lead held declarer to the same tricks as the best defensive lead double-dummy. Players with few boards are greyed. Click a column header to sort; filter by name or team.

#	Player	Team	Leads	On target	Conceded
1	R.Mao	SX XHEST	21	95.2%	0.05
2	Y.Shao	SX HYSW	25	88.0%	0.16
3	R.Li	SX HYSW	35	85.7%	0.14
4	R.Wang	SX XNWY	14	85.7%	0.14
5	B.Jiang	CHINA RDFZ1	19	84.2%	0.42
6	S.Qiu	CHINA RDFZ1	16	81.2%	0.25
7	Y.Shang	SX HYSW	19	78.9%	0.37
8	P.Wang	SX XHEST	14	78.6%	0.36
9	R.Pan	CHINA RDFZ1	17	76.5%	0.47
10	H.Dai	SX XNWY	21	76.2%	0.38
11	Z.Yuan	SX XHEST	16	75.0%	0.38
12	T.Zhang	SX XNWY	26	73.1%	0.35
13	Y.Liu	SX XNWY	17	70.6%	0.29
14	Z.Wu	SX XHEST	17	70.6%	0.41
15	L.Cheng	SX XHEST	20	70.0%	0.35
16	S.Liu	SX HYSW	23	69.6%	0.30
17	Y.Yun	SX XHEST	13	69.2%	0.39
18	H.Yu	CHINA RDFZ1	21	66.7%	0.48
19	Z.Cai	CHINA RDFZ1	5	100.0%	0.00
20	C.Lo	CHINESE TAIPEI BLUE	6	100.0%	0.00
21	X.Yu	SX XHLD	2	100.0%	0.00
22	Y.Chen	SX XHLD	9	100.0%	0.00
23	K.Chang	CHINESE TAIPEI WHITE	3	100.0%	0.00
24	Y.Chu	CHINESE TAIPEI WHITE	7	85.7%	0.14
25	M.Wu	CHINESE TAIPEI BLUE	11	81.8%	0.18
26	W.Xue	SX XNWY	10	80.0%	0.20
27	K.Kopka	AZSUW AKADEMIABRYDZA	5	80.0%	0.20
28	Y.Lan	CHINESE TAIPEI WHITE	5	80.0%	1.20
29	Y.Huang	CHINESE TAIPEI WHITE	9	77.8%	0.33
30	M.Li	SX XHLD	12	75.0%	0.25
31	C.Chiu	CHINESE TAIPEI WHITE	4	75.0%	0.25
32	H.Fan	CHINESE TAIPEI WHITE	4	75.0%	0.25
33	O.Trybus	AZSUW AKADEMIABRYDZA	12	75.0%	0.33
34	H.Shang	SX XHLD	8	75.0%	0.50
35	Y.Ding	CHINA RDFZ1	10	70.0%	0.40
36	Y.Xie	SX XHLD	3	66.7%	0.33
37	P.Hulanicki	AZSUW AKADEMIABRYDZA	6	66.7%	0.50
38	Y.Lee	CHINESE TAIPEI BLUE	8	62.5%	0.50
39	T.Kielbasa	AZSUW AKADEMIABRYDZA	9	55.6%	0.44
40	Y.Chen	CHINESE TAIPEI BLUE	8	37.5%	0.62

Declarer-play accuracy↑ top

How often declarer took at least the double-dummy makeable tricks after the actual opening lead — i.e. didn’t leave tricks on the table. Players with few boards are greyed. Click a column header to sort; filter by name or team.

#	Player	Team	Contracts	On target	Conceded
1	Y.Yun	SX XHEST	13	92.3%	0.08
2	P.Wang	SX XHEST	12	83.3%	0.17
3	L.Cheng	SX XHEST	18	83.3%	0.17
4	S.Qiu	CHINA RDFZ1	11	81.8%	0.18
5	Z.Yuan	SX XHEST	16	81.2%	0.19
6	H.Dai	SX XNWY	20	80.0%	0.20
7	Y.Liu	SX XNWY	19	78.9%	0.37
8	T.Zhang	SX XNWY	29	75.9%	0.45
9	B.Jiang	CHINA RDFZ1	33	75.8%	0.24
10	R.Wang	SX XNWY	28	75.0%	0.29
11	R.Pan	CHINA RDFZ1	27	70.4%	0.41
12	H.Yu	CHINA RDFZ1	16	68.8%	0.38
13	R.Li	SX HYSW	16	68.8%	0.38
14	S.Liu	SX HYSW	22	68.2%	0.46
15	Y.Shang	SX HYSW	26	65.4%	0.46
16	Y.Shao	SX HYSW	26	61.5%	0.46
17	R.Mao	SX XHEST	15	60.0%	0.67
18	Z.Wu	SX XHEST	15	33.3%	0.73
19	T.Kielbasa	AZSUW AKADEMIABRYDZA	11	90.9%	0.36
20	Y.Huang	CHINESE TAIPEI WHITE	10	90.0%	0.10
21	H.Shang	SX XHLD	8	87.5%	0.25
22	K.Kopka	AZSUW AKADEMIABRYDZA	7	85.7%	0.14
23	Y.Ding	CHINA RDFZ1	7	85.7%	0.14
24	M.Li	SX XHLD	6	83.3%	0.17
25	Z.Cai	CHINA RDFZ1	10	80.0%	0.20
26	Y.Lee	CHINESE TAIPEI BLUE	7	71.4%	0.29
27	Y.Lan	CHINESE TAIPEI WHITE	7	71.4%	0.29
28	W.Xue	SX XNWY	7	71.4%	0.43
29	Y.Chen	CHINESE TAIPEI BLUE	7	71.4%	0.43
30	Y.Chu	CHINESE TAIPEI WHITE	3	66.7%	0.33
31	M.Wu	CHINESE TAIPEI BLUE	6	66.7%	0.50
32	C.Lo	CHINESE TAIPEI BLUE	11	63.6%	0.64
33	X.Yu	SX XHLD	5	60.0%	0.60
34	C.Chiu	CHINESE TAIPEI WHITE	5	60.0%	0.60
35	Y.Xie	SX XHLD	4	50.0%	0.50
36	H.Fan	CHINESE TAIPEI WHITE	2	50.0%	0.50
37	P.Hulanicki	AZSUW AKADEMIABRYDZA	6	50.0%	0.67
38	Y.Chen	SX XHLD	7	42.9%	0.86
39	O.Trybus	AZSUW AKADEMIABRYDZA	8	37.5%	0.75
40	K.Chang	CHINESE TAIPEI WHITE	4	25.0%	1.00

Defensive accuracy↑ top

How often the defenders held declarer to the double-dummy makeable (or fewer) — charged to both defenders on the board. Players with few boards are greyed. Click a column header to sort; filter by name or team.

#	Player	Team	Boards	On target	Conceded
1	B.Jiang	CHINA RDFZ1	36	91.7%	0.11
2	R.Pan	CHINA RDFZ1	36	91.7%	0.11
3	S.Liu	SX HYSW	48	89.6%	0.19
4	Y.Shao	SX HYSW	48	89.6%	0.19
5	H.Dai	SX XNWY	47	89.4%	0.15
6	S.Qiu	CHINA RDFZ1	37	89.2%	0.11
7	H.Yu	CHINA RDFZ1	37	89.2%	0.11
8	R.Wang	SX XNWY	27	88.9%	0.18
9	Z.Wu	SX XHEST	33	87.9%	0.21
10	Z.Yuan	SX XHEST	33	87.9%	0.21
11	R.Li	SX HYSW	54	87.0%	0.15
12	Y.Shang	SX HYSW	54	87.0%	0.15
13	R.Mao	SX XHEST	35	85.7%	0.17
14	P.Wang	SX XHEST	35	85.7%	0.17
15	T.Zhang	SX XNWY	42	83.3%	0.19
16	Y.Liu	SX XNWY	41	82.9%	0.24
17	L.Cheng	SX XHEST	33	81.8%	0.18
18	Y.Yun	SX XHEST	33	81.8%	0.18
19	Y.Huang	CHINESE TAIPEI WHITE	14	92.9%	0.07
20	Y.Lan	CHINESE TAIPEI WHITE	14	92.9%	0.07
21	W.Xue	SX XNWY	19	89.5%	0.21
22	Y.Chen	CHINESE TAIPEI BLUE	14	85.7%	0.14
23	C.Lo	CHINESE TAIPEI BLUE	14	85.7%	0.14
24	X.Yu	SX XHLD	7	85.7%	0.14
25	M.Li	SX XHLD	17	82.4%	0.18
26	Y.Xie	SX XHLD	10	80.0%	0.20
27	Z.Cai	CHINA RDFZ1	15	80.0%	0.27
28	Y.Ding	CHINA RDFZ1	15	80.0%	0.27
29	Y.Lee	CHINESE TAIPEI BLUE	19	73.7%	0.53
30	M.Wu	CHINESE TAIPEI BLUE	19	73.7%	0.53
31	Y.Chen	SX XHLD	17	70.6%	0.29
32	H.Shang	SX XHLD	17	70.6%	0.29
33	P.Hulanicki	AZSUW AKADEMIABRYDZA	15	66.7%	0.33
34	T.Kielbasa	AZSUW AKADEMIABRYDZA	15	66.7%	0.33
35	K.Kopka	AZSUW AKADEMIABRYDZA	17	64.7%	0.53
36	O.Trybus	AZSUW AKADEMIABRYDZA	17	64.7%	0.53
37	K.Chang	CHINESE TAIPEI WHITE	7	57.1%	0.57
38	C.Chiu	CHINESE TAIPEI WHITE	7	57.1%	0.57
39	Y.Chu	CHINESE TAIPEI WHITE	11	54.5%	0.55
40	H.Fan	CHINESE TAIPEI WHITE	11	54.5%	0.55

Strength of schedule — opponent-adjusted Butler↑ top

On every board a player meets a specific opposing pair, and strong opponents defend and bid well — which quietly depresses your cross-IMP. Opp /bd is the mean cumulative Butler of the pairs faced, i.e. the strength of the draw (+ tough, − easy). Adj /bd adds it back — a tough draw is credited, an easy one discounted — and Δ is the resulting move against the raw Butler order. Regulars only (≥ 40% of the boards). Click a column header to sort; filter by name or team.

#	Player	Team	Boards	Opp /bd	Raw /bd	Adj /bd	Δ
1	R.Li	SX HYSW	96	+0.18	+0.65	+0.83	▲2
2	Y.Shang	SX HYSW	96	+0.18	+0.65	+0.83	▲2
3	S.Qiu	CHINA RDFZ1	64	-0.09	+0.89	+0.80	▼2
4	H.Yu	CHINA RDFZ1	64	-0.09	+0.89	+0.80	▼2
5	R.Wang	SX XNWY	64	+0.29	+0.38	+0.67	▲1
6	S.Liu	SX HYSW	96	+0.37	+0.21	+0.57	▲4
7	Y.Shao	SX HYSW	96	+0.37	+0.21	+0.57	▲4
8	B.Jiang	CHINA RDFZ1	96	-0.05	+0.35	+0.30	▼1
9	R.Pan	CHINA RDFZ1	96	-0.05	+0.35	+0.30	▼1
10	H.Dai	SX XNWY	96	-0.27	+0.44	+0.17	▼5
11	Y.Liu	SX XNWY	96	-0.15	+0.23	+0.07	▼2
12	T.Zhang	SX XNWY	96	-0.30	+0.15	-0.16	▲2
13	R.Mao	SX XHEST	64	-0.43	+0.15	-0.27	▼1
14	P.Wang	SX XHEST	64	-0.43	+0.15	-0.27	▼1
15	Z.Wu	SX XHEST	64	+0.04	-0.57	-0.53	▲2
16	Z.Yuan	SX XHEST	64	+0.04	-0.57	-0.53	▲2
17	L.Cheng	SX XHEST	64	-0.45	-0.29	-0.74	▼2
18	Y.Yun	SX XHEST	64	-0.45	-0.29	-0.74	▼2

Stages

Statistics