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	M.Hao	CHINA RDFZ GIRLS	48	+1.88	+90.0
2	L.Ma	CHINA RDFZ GIRLS	48	+1.88	+90.0
3	X.Ruan	SX XHLD	48	+1.58	+76.0
4	S.Broccolino	ITALIA	64	+0.77	+49.0
5	C.De Lutio	ITALIA	64	+0.77	+49.0
6	Y.Sun	SX XNMF	80	+0.34	+27.0
7	G.Liu	CHINA RDFZ GIRLS	64	+0.33	+21.0
8	X.Luo	CHINA RDFZ GIRLS	64	+0.33	+21.0
9	Y.Zhang	SX XNMF	80	+0.28	+22.0
10	M.Salvato	ITALIA	96	+0.17	+16.0
11	G.Scriattoli	ITALIA	96	+0.17	+16.0
12	Y.Chen	SX XHLD	96	+0.06	+6.0
13	A.Yuan	SX XHLD	96	-0.01	-1.0
14	H.Jin	SX XHLD	48	-0.21	-10.0
15	C.Ge	SX XHLD	96	-0.64	-61.0
16	X.Lu	SX XNMF	96	-0.94	-90.0
17	L.Hu	CHINA RDFZ GIRLS	80	-1.01	-81.0
18	Q.Xia	CHINA RDFZ GIRLS	80	-1.01	-81.0
19	W.Huang	SX XNMF	48	-1.31	-63.0
20	M.Wu	SX XNMF	80	-1.40	-112.0
21	A.Di Mauro	ITALIA	32	+0.25	+8.0
22	F.Tanini	ITALIA	32	+0.25	+8.0

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	X.Ruan	SX XHLD	9	100.0%	0.00
2	C.De Lutio	ITALIA	10	100.0%	0.00
3	M.Hao	CHINA RDFZ GIRLS	13	92.3%	0.08
4	A.Yuan	SX XHLD	19	89.5%	0.16
5	M.Wu	SX XNMF	9	88.9%	0.11
6	M.Salvato	ITALIA	27	85.2%	0.22
7	L.Ma	CHINA RDFZ GIRLS	12	83.3%	0.17
8	G.Scriattoli	ITALIA	24	83.3%	0.17
9	L.Hu	CHINA RDFZ GIRLS	24	83.3%	0.17
10	C.Ge	SX XHLD	28	82.1%	0.21
11	S.Broccolino	ITALIA	20	80.0%	0.25
12	Y.Sun	SX XNMF	20	80.0%	0.30
13	X.Luo	CHINA RDFZ GIRLS	14	78.6%	0.36
14	Y.Zhang	SX XNMF	18	77.8%	0.22
15	Y.Chen	SX XHLD	24	75.0%	0.33
16	G.Liu	CHINA RDFZ GIRLS	18	72.2%	0.33
17	Q.Xia	CHINA RDFZ GIRLS	17	70.6%	0.41
18	H.Jin	SX XHLD	20	65.0%	0.45
19	X.Lu	SX XNMF	24	58.3%	0.50
20	W.Huang	SX XNMF	21	57.1%	0.57
21	A.Di Mauro	ITALIA	6	83.3%	0.17
22	F.Tanini	ITALIA	5	60.0%	0.40

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.Chen	SX XHLD	23	91.3%	0.09
2	G.Liu	CHINA RDFZ GIRLS	9	88.9%	0.11
3	H.Jin	SX XHLD	16	87.5%	0.19
4	X.Luo	CHINA RDFZ GIRLS	22	86.4%	0.14
5	A.Yuan	SX XHLD	25	80.0%	0.24
6	M.Hao	CHINA RDFZ GIRLS	10	80.0%	0.40
7	W.Huang	SX XNMF	9	77.8%	0.22
8	M.Salvato	ITALIA	25	76.0%	0.24
9	X.Ruan	SX XHLD	8	75.0%	0.25
10	X.Lu	SX XNMF	28	75.0%	0.25
11	C.Ge	SX XHLD	20	75.0%	0.30
12	G.Scriattoli	ITALIA	19	73.7%	0.26
13	S.Broccolino	ITALIA	15	73.3%	0.33
14	C.De Lutio	ITALIA	18	72.2%	0.28
15	L.Ma	CHINA RDFZ GIRLS	13	69.2%	0.39
16	Q.Xia	CHINA RDFZ GIRLS	16	68.8%	0.50
17	Y.Zhang	SX XNMF	21	66.7%	0.38
18	Y.Sun	SX XNMF	14	64.3%	0.43
19	L.Hu	CHINA RDFZ GIRLS	22	63.6%	0.59
20	M.Wu	SX XNMF	28	57.1%	0.57
21	F.Tanini	ITALIA	9	77.8%	0.33
22	A.Di Mauro	ITALIA	12	75.0%	0.25

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	M.Hao	CHINA RDFZ GIRLS	25	92.0%	0.12
2	L.Ma	CHINA RDFZ GIRLS	25	92.0%	0.12
3	S.Broccolino	ITALIA	30	90.0%	0.13
4	C.De Lutio	ITALIA	30	90.0%	0.13
5	A.Yuan	SX XHLD	51	86.3%	0.26
6	H.Jin	SX XHLD	26	84.6%	0.27
7	Y.Zhang	SX XNMF	46	82.6%	0.20
8	M.Salvato	ITALIA	51	82.4%	0.20
9	G.Scriattoli	ITALIA	51	82.4%	0.20
10	G.Liu	CHINA RDFZ GIRLS	32	81.2%	0.22
11	X.Luo	CHINA RDFZ GIRLS	32	81.2%	0.22
12	L.Hu	CHINA RDFZ GIRLS	41	80.5%	0.20
13	Q.Xia	CHINA RDFZ GIRLS	41	80.5%	0.20
14	X.Ruan	SX XHLD	24	75.0%	0.33
15	X.Lu	SX XNMF	36	72.2%	0.31
16	C.Ge	SX XHLD	50	72.0%	0.42
17	Y.Sun	SX XNMF	46	71.7%	0.30
18	M.Wu	SX XNMF	27	70.4%	0.33
19	W.Huang	SX XNMF	29	69.0%	0.31
20	Y.Chen	SX XHLD	49	65.3%	0.47
21	A.Di Mauro	ITALIA	11	81.8%	0.36
22	F.Tanini	ITALIA	11	81.8%	0.36

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	M.Hao	CHINA RDFZ GIRLS	48	-0.57	+1.25	+0.68	·
2	L.Ma	CHINA RDFZ GIRLS	48	-0.57	+1.25	+0.68	·
3	M.Salvato	ITALIA	96	-0.02	+0.59	+0.57	▲1
4	G.Scriattoli	ITALIA	96	-0.02	+0.59	+0.57	▲1
5	W.Huang	SX XNMF	48	+1.05	-0.49	+0.56	▲10
6	G.Liu	CHINA RDFZ GIRLS	64	+0.13	+0.22	+0.35	▲1
7	X.Luo	CHINA RDFZ GIRLS	64	+0.13	+0.22	+0.35	▲1
8	X.Ruan	SX XHLD	48	-0.60	+0.93	+0.33	▼5
9	Y.Chen	SX XHLD	96	-0.09	+0.34	+0.25	▼3
10	Y.Sun	SX XNMF	80	+0.50	-0.48	+0.01	▲4
11	L.Hu	CHINA RDFZ GIRLS	80	+0.07	-0.23	-0.16	·
12	Q.Xia	CHINA RDFZ GIRLS	80	+0.07	-0.23	-0.16	·
13	S.Broccolino	ITALIA	64	-0.29	+0.08	-0.20	▼4
14	C.De Lutio	ITALIA	64	-0.29	+0.08	-0.20	▼4
15	C.Ge	SX XHLD	96	-0.04	-0.23	-0.27	▼2
16	X.Lu	SX XNMF	96	+0.17	-0.63	-0.45	▲2
17	Y.Zhang	SX XNMF	80	+0.08	-0.57	-0.49	▼1
18	M.Wu	SX XNMF	80	+0.25	-0.86	-0.60	▲1
19	H.Jin	SX XHLD	48	+0.33	-1.01	-0.68	▲1
20	A.Yuan	SX XHLD	96	-0.09	-0.61	-0.70	▼3

Stages

Statistics