Marrakech 2023 — 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	B.Cronier	🇫🇷 FRANCE	127	+1.23	+156.0
2	P.Cronier	🇫🇷 FRANCE	127	+1.23	+156.0
3	D.Rosenberg	🇺🇸 USA2	240	+0.74	+178.0
4	M.Rosenberg	🇺🇸 USA2	240	+0.74	+178.0
5	M.Ionita	🇷🇴 ROMANIA	208	+0.53	+110.0
6	M.Stegaroiu	🇷🇴 ROMANIA	208	+0.53	+110.0
7	V.Reess	🇫🇷 FRANCE	240	+0.35	+85.0
8	L.Thuillez	🇫🇷 FRANCE	240	+0.35	+85.0
9	C.Willenken	🇺🇸 USA2	176	+0.11	+20.0
10	A.Lin	🇺🇸 USA2	128	+0.02	+2.0
11	V.Carcassonne-Labaere	🇧🇪 BELGIUM	224	-0.01	-2.0
12	A.Labaere	🇧🇪 BELGIUM	224	-0.01	-2.0
13	B.Dehaye	🇧🇪 BELGIUM	192	-0.15	-28.0
14	I.Dewasme	🇧🇪 BELGIUM	192	-0.15	-28.0
15	M.Zur-Campanile	🇺🇸 USA2	208	-0.20	-41.0
16	P.Schmidt	🇫🇷 FRANCE	207	-0.37	-76.0
17	J.Zochowska	🇫🇷 FRANCE	207	-0.37	-76.0
18	A.Rosenthal	🇺🇸 USA2	160	-0.37	-59.0
19	A.Boboc	🇷🇴 ROMANIA	160	-0.39	-63.0
20	B.Marina	🇷🇴 ROMANIA	160	-0.39	-63.0
21	G.Mihai	🇷🇴 ROMANIA	144	-0.56	-81.0
22	R.Mihai	🇷🇴 ROMANIA	144	-0.56	-81.0
23	I.Baroni	🇮🇹 ITALY	96	+0.69	+66.0
24	A.Gandoglia	🇮🇹 ITALY	96	+0.69	+66.0
25	M.Eggeling	🇩🇪 GERMANY	64	+0.61	+39.0
26	P.Gruenke	🇩🇪 GERMANY	64	+0.61	+39.0
27	S.Weinstein	🇺🇸 USA1	80	+0.10	+8.0
28	J.Wolpert	🇺🇸 USA1	80	+0.10	+8.0
29	A.Gladiator	🇩🇪 GERMANY	48	+0.04	+2.0
30	M.Gromoeller	🇩🇪 GERMANY	48	+0.04	+2.0
31	Y.Chen	🇨🇳 CHINA	63	-0.13	-8.0
32	B.Fu	🇨🇳 CHINA	63	-0.13	-8.0
33	J.Hu	🇨🇳 CHINA	64	-0.22	-14.0
34	J.Wang	🇨🇳 CHINA	64	-0.22	-14.0
35	G.Dauwe	🇧🇪 BELGIUM	96	-0.32	-31.0
36	T.Dobbels	🇧🇪 BELGIUM	96	-0.32	-31.0
37	D.Attanasio	🇮🇹 ITALY	48	-0.38	-18.0
38	G.Manara	🇮🇹 ITALY	48	-0.38	-18.0
39	K.Dwyer	🇺🇸 USA1	64	-0.42	-27.0
40	S.Rimstedt	🇺🇸 USA1	64	-0.42	-27.0
41	L.Cima	🇮🇹 ITALY	48	-0.98	-47.0
42	B.Dessi	🇮🇹 ITALY	48	-0.98	-47.0
43	J.Dai	🇨🇳 CHINA	63	-1.06	-67.0
44	Y.Zhang	🇨🇳 CHINA	63	-1.06	-67.0
45	H.Haeusler	🇩🇪 GERMANY	80	-1.09	-87.0
46	D.Von Arnim	🇩🇪 GERMANY	80	-1.09	-87.0
47	S.Huang	🇺🇸 USA1	48	-1.17	-56.0
48	J.Millens	🇺🇸 USA1	48	-1.17	-56.0

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	J.Zochowska	🇫🇷 FRANCE	47	87.2%	0.17
2	D.Rosenberg	🇺🇸 USA2	61	86.9%	0.13
3	B.Cronier	🇫🇷 FRANCE	39	84.6%	0.15
4	M.Rosenberg	🇺🇸 USA2	71	84.5%	0.20
5	M.Stegaroiu	🇷🇴 ROMANIA	55	83.6%	0.20
6	G.Mihai	🇷🇴 ROMANIA	34	82.4%	0.18
7	A.Boboc	🇷🇴 ROMANIA	43	81.4%	0.19
8	V.Reess	🇫🇷 FRANCE	69	81.2%	0.22
9	A.Rosenthal	🇺🇸 USA2	36	80.6%	0.25
10	V.Carcassonne-Labaere	🇧🇪 BELGIUM	60	80.0%	0.30
11	B.Dehaye	🇧🇪 BELGIUM	50	78.0%	0.22
12	M.Ionita	🇷🇴 ROMANIA	48	77.1%	0.31
13	L.Thuillez	🇫🇷 FRANCE	51	76.5%	0.26
14	P.Cronier	🇫🇷 FRANCE	25	76.0%	0.28
15	C.Willenken	🇺🇸 USA2	45	75.6%	0.31
16	M.Zur-Campanile	🇺🇸 USA2	57	75.4%	0.30
17	I.Dewasme	🇧🇪 BELGIUM	40	75.0%	0.33
18	B.Marina	🇷🇴 ROMANIA	36	75.0%	0.36
19	A.Lin	🇺🇸 USA2	35	74.3%	0.29
20	P.Schmidt	🇫🇷 FRANCE	51	70.6%	0.33
21	A.Labaere	🇧🇪 BELGIUM	47	70.2%	0.32
22	R.Mihai	🇷🇴 ROMANIA	34	64.7%	0.41
23	L.Cima	🇮🇹 ITALY	16	93.8%	0.06
24	S.Weinstein	🇺🇸 USA1	15	93.3%	0.07
25	A.Gladiator	🇩🇪 GERMANY	12	91.7%	0.08
26	Y.Chen	🇨🇳 CHINA	12	91.7%	0.08
27	J.Wang	🇨🇳 CHINA	24	91.7%	0.08
28	J.Millens	🇺🇸 USA1	10	90.0%	0.10
29	P.Gruenke	🇩🇪 GERMANY	19	89.5%	0.10
30	Y.Zhang	🇨🇳 CHINA	16	87.5%	0.12
31	S.Rimstedt	🇺🇸 USA1	12	83.3%	0.17
32	J.Wolpert	🇺🇸 USA1	24	83.3%	0.17
33	S.Huang	🇺🇸 USA1	12	83.3%	0.17
34	D.Von Arnim	🇩🇪 GERMANY	23	82.6%	0.17
35	M.Eggeling	🇩🇪 GERMANY	21	81.0%	0.33
36	H.Haeusler	🇩🇪 GERMANY	20	80.0%	0.20
37	G.Manara	🇮🇹 ITALY	15	80.0%	0.27
38	M.Gromoeller	🇩🇪 GERMANY	14	78.6%	0.36
39	G.Dauwe	🇧🇪 BELGIUM	25	76.0%	0.36
40	B.Dessi	🇮🇹 ITALY	8	75.0%	0.25
41	A.Gandoglia	🇮🇹 ITALY	27	74.1%	0.33
42	D.Attanasio	🇮🇹 ITALY	15	73.3%	0.27
43	J.Hu	🇨🇳 CHINA	15	73.3%	0.27
44	T.Dobbels	🇧🇪 BELGIUM	22	72.7%	0.32
45	K.Dwyer	🇺🇸 USA1	11	72.7%	0.36
46	J.Dai	🇨🇳 CHINA	9	66.7%	0.33
47	I.Baroni	🇮🇹 ITALY	15	66.7%	0.40
48	B.Fu	🇨🇳 CHINA	20	65.0%	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	M.Stegaroiu	🇷🇴 ROMANIA	42	83.3%	0.26
2	V.Carcassonne-Labaere	🇧🇪 BELGIUM	60	81.7%	0.23
3	B.Dehaye	🇧🇪 BELGIUM	53	81.1%	0.26
4	M.Rosenberg	🇺🇸 USA2	46	80.4%	0.33
5	I.Dewasme	🇧🇪 BELGIUM	49	79.6%	0.22
6	P.Schmidt	🇫🇷 FRANCE	53	79.2%	0.26
7	R.Mihai	🇷🇴 ROMANIA	48	75.0%	0.35
8	V.Reess	🇫🇷 FRANCE	58	74.1%	0.43
9	B.Marina	🇷🇴 ROMANIA	48	72.9%	0.31
10	P.Cronier	🇫🇷 FRANCE	33	72.7%	0.39
11	M.Ionita	🇷🇴 ROMANIA	62	72.6%	0.29
12	D.Rosenberg	🇺🇸 USA2	61	72.1%	0.34
13	L.Thuillez	🇫🇷 FRANCE	62	71.0%	0.34
14	B.Cronier	🇫🇷 FRANCE	30	66.7%	0.37
15	C.Willenken	🇺🇸 USA2	42	66.7%	0.41
16	J.Zochowska	🇫🇷 FRANCE	56	66.1%	0.46
17	A.Rosenthal	🇺🇸 USA2	34	64.7%	0.41
18	G.Mihai	🇷🇴 ROMANIA	28	64.3%	0.39
19	M.Zur-Campanile	🇺🇸 USA2	61	63.9%	0.46
20	A.Labaere	🇧🇪 BELGIUM	57	63.2%	0.44
21	A.Boboc	🇷🇴 ROMANIA	32	56.2%	0.53
22	A.Lin	🇺🇸 USA2	25	56.0%	0.48
23	J.Millens	🇺🇸 USA1	2	100.0%	0.00
24	S.Weinstein	🇺🇸 USA1	24	95.8%	0.04
25	A.Gandoglia	🇮🇹 ITALY	28	89.3%	0.11
26	D.Attanasio	🇮🇹 ITALY	15	86.7%	0.13
27	Y.Zhang	🇨🇳 CHINA	13	84.6%	0.15
28	Y.Chen	🇨🇳 CHINA	12	83.3%	0.17
29	J.Wolpert	🇺🇸 USA1	17	82.4%	0.23
30	L.Cima	🇮🇹 ITALY	10	80.0%	0.30
31	P.Gruenke	🇩🇪 GERMANY	15	80.0%	0.47
32	M.Eggeling	🇩🇪 GERMANY	9	77.8%	0.22
33	H.Haeusler	🇩🇪 GERMANY	22	77.3%	0.27
34	K.Dwyer	🇺🇸 USA1	21	76.2%	0.24
35	T.Dobbels	🇧🇪 BELGIUM	25	76.0%	0.32
36	S.Huang	🇺🇸 USA1	23	73.9%	0.30
37	M.Gromoeller	🇩🇪 GERMANY	15	73.3%	0.33
38	J.Hu	🇨🇳 CHINA	15	73.3%	0.33
39	B.Dessi	🇮🇹 ITALY	13	69.2%	0.46
40	S.Rimstedt	🇺🇸 USA1	19	68.4%	0.42
41	B.Fu	🇨🇳 CHINA	19	68.4%	0.42
42	I.Baroni	🇮🇹 ITALY	25	68.0%	0.48
43	G.Manara	🇮🇹 ITALY	3	66.7%	0.33
44	J.Dai	🇨🇳 CHINA	25	64.0%	0.44
45	G.Dauwe	🇧🇪 BELGIUM	24	62.5%	0.42
46	D.Von Arnim	🇩🇪 GERMANY	15	60.0%	0.80
47	A.Gladiator	🇩🇪 GERMANY	7	57.1%	0.57
48	J.Wang	🇨🇳 CHINA	10	50.0%	0.60

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.Cronier	🇫🇷 FRANCE	64	96.9%	0.03
2	P.Cronier	🇫🇷 FRANCE	64	96.9%	0.03
3	A.Lin	🇺🇸 USA2	74	93.2%	0.08
4	C.Willenken	🇺🇸 USA2	95	91.6%	0.10
5	P.Schmidt	🇫🇷 FRANCE	98	90.8%	0.13
6	J.Zochowska	🇫🇷 FRANCE	98	90.8%	0.13
7	D.Rosenberg	🇺🇸 USA2	132	90.2%	0.11
8	M.Rosenberg	🇺🇸 USA2	132	90.2%	0.11
9	M.Ionita	🇷🇴 ROMANIA	103	88.3%	0.12
10	M.Stegaroiu	🇷🇴 ROMANIA	103	88.3%	0.12
11	B.Dehaye	🇧🇪 BELGIUM	90	87.8%	0.12
12	I.Dewasme	🇧🇪 BELGIUM	90	87.8%	0.12
13	A.Boboc	🇷🇴 ROMANIA	79	87.3%	0.17
14	B.Marina	🇷🇴 ROMANIA	79	87.3%	0.17
15	V.Reess	🇫🇷 FRANCE	120	85.0%	0.17
16	L.Thuillez	🇫🇷 FRANCE	120	85.0%	0.17
17	V.Carcassonne-Labaere	🇧🇪 BELGIUM	107	84.1%	0.18
18	A.Labaere	🇧🇪 BELGIUM	107	84.1%	0.18
19	G.Mihai	🇷🇴 ROMANIA	68	80.9%	0.23
20	R.Mihai	🇷🇴 ROMANIA	68	80.9%	0.23
21	M.Zur-Campanile	🇺🇸 USA2	99	80.8%	0.22
22	A.Rosenthal	🇺🇸 USA2	78	79.5%	0.24
23	A.Gladiator	🇩🇪 GERMANY	26	96.2%	0.04
24	M.Gromoeller	🇩🇪 GERMANY	26	96.2%	0.04
25	Y.Chen	🇨🇳 CHINA	32	93.8%	0.09
26	B.Fu	🇨🇳 CHINA	32	93.8%	0.09
27	H.Haeusler	🇩🇪 GERMANY	43	93.0%	0.09
28	D.Von Arnim	🇩🇪 GERMANY	43	93.0%	0.09
29	J.Hu	🇨🇳 CHINA	39	92.3%	0.08
30	J.Wang	🇨🇳 CHINA	39	92.3%	0.08
31	I.Baroni	🇮🇹 ITALY	42	90.5%	0.12
32	A.Gandoglia	🇮🇹 ITALY	42	90.5%	0.12
33	L.Cima	🇮🇹 ITALY	24	87.5%	0.12
34	B.Dessi	🇮🇹 ITALY	24	87.5%	0.12
35	K.Dwyer	🇺🇸 USA1	23	87.0%	0.17
36	S.Rimstedt	🇺🇸 USA1	23	87.0%	0.17
37	G.Dauwe	🇧🇪 BELGIUM	47	85.1%	0.17
38	T.Dobbels	🇧🇪 BELGIUM	47	85.1%	0.17
39	M.Eggeling	🇩🇪 GERMANY	40	85.0%	0.15
40	P.Gruenke	🇩🇪 GERMANY	40	85.0%	0.15
41	J.Dai	🇨🇳 CHINA	25	84.0%	0.20
42	Y.Zhang	🇨🇳 CHINA	25	84.0%	0.20
43	S.Weinstein	🇺🇸 USA1	39	82.1%	0.18
44	J.Wolpert	🇺🇸 USA1	39	82.1%	0.18
45	S.Huang	🇺🇸 USA1	22	81.8%	0.23
46	J.Millens	🇺🇸 USA1	22	81.8%	0.23
47	D.Attanasio	🇮🇹 ITALY	30	76.7%	0.27
48	G.Manara	🇮🇹 ITALY	30	76.7%	0.27

Bidding activity↑ top

Share of a player’s bids that were not a pass — contract bids, doubles and redoubles, over every auction they sat in. High = active, low = quiet. Players with few boards are greyed. Click a column header to sort; filter by name or team.

#	Player	Team	Bids	Not pass	Active %
1	M.Zur-Campanile	🇺🇸 USA2	587	274	46.7%
2	G.Mihai	🇷🇴 ROMANIA	414	192	46.4%
3	B.Dehaye	🇧🇪 BELGIUM	547	250	45.7%
4	P.Schmidt	🇫🇷 FRANCE	592	270	45.6%
5	V.Reess	🇫🇷 FRANCE	695	316	45.5%
6	R.Mihai	🇷🇴 ROMANIA	412	186	45.1%
7	I.Dewasme	🇧🇪 BELGIUM	552	242	43.8%
8	L.Thuillez	🇫🇷 FRANCE	696	303	43.5%
9	J.Zochowska	🇫🇷 FRANCE	587	255	43.4%
10	P.Cronier	🇫🇷 FRANCE	384	166	43.2%
11	A.Rosenthal	🇺🇸 USA2	448	192	42.9%
12	C.Willenken	🇺🇸 USA2	507	215	42.4%
13	A.Labaere	🇧🇪 BELGIUM	638	269	42.2%
14	V.Carcassonne-Labaere	🇧🇪 BELGIUM	633	267	42.2%
15	M.Stegaroiu	🇷🇴 ROMANIA	580	244	42.1%
16	A.Boboc	🇷🇴 ROMANIA	445	186	41.8%
17	A.Lin	🇺🇸 USA2	356	147	41.3%
18	B.Marina	🇷🇴 ROMANIA	450	183	40.7%
19	M.Rosenberg	🇺🇸 USA2	722	291	40.3%
20	M.Ionita	🇷🇴 ROMANIA	583	234	40.1%
21	B.Cronier	🇫🇷 FRANCE	382	153	40.1%
22	D.Rosenberg	🇺🇸 USA2	732	291	39.8%
23	J.Dai	🇨🇳 CHINA	182	99	54.4%
24	S.Huang	🇺🇸 USA1	122	65	53.3%
25	Y.Zhang	🇨🇳 CHINA	177	92	52.0%
26	K.Dwyer	🇺🇸 USA1	178	90	50.6%
27	S.Rimstedt	🇺🇸 USA1	181	89	49.2%
28	H.Haeusler	🇩🇪 GERMANY	224	110	49.1%
29	L.Cima	🇮🇹 ITALY	132	64	48.5%
30	J.Wolpert	🇺🇸 USA1	232	112	48.3%
31	A.Gandoglia	🇮🇹 ITALY	283	136	48.1%
32	S.Weinstein	🇺🇸 USA1	231	111	48.1%
33	B.Fu	🇨🇳 CHINA	191	91	47.6%
34	I.Baroni	🇮🇹 ITALY	286	135	47.2%
35	G.Dauwe	🇧🇪 BELGIUM	287	134	46.7%
36	Y.Chen	🇨🇳 CHINA	189	88	46.6%
37	T.Dobbels	🇧🇪 BELGIUM	280	129	46.1%
38	D.Von Arnim	🇩🇪 GERMANY	228	97	42.5%
39	J.Hu	🇨🇳 CHINA	191	81	42.4%
40	D.Attanasio	🇮🇹 ITALY	139	59	42.4%
41	J.Wang	🇨🇳 CHINA	196	83	42.3%
42	M.Gromoeller	🇩🇪 GERMANY	140	59	42.1%
43	B.Dessi	🇮🇹 ITALY	131	55	42.0%
44	J.Millens	🇺🇸 USA1	126	52	41.3%
45	P.Gruenke	🇩🇪 GERMANY	185	76	41.1%
46	M.Eggeling	🇩🇪 GERMANY	187	75	40.1%
47	A.Gladiator	🇩🇪 GERMANY	140	55	39.3%
48	G.Manara	🇮🇹 ITALY	139	52	37.4%

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	B.Cronier	🇫🇷 FRANCE	128	-0.29	+1.04	+0.76	·
2	P.Cronier	🇫🇷 FRANCE	128	-0.29	+1.04	+0.76	·
3	D.Rosenberg	🇺🇸 USA2	240	-0.17	+0.74	+0.57	·
4	M.Rosenberg	🇺🇸 USA2	240	-0.17	+0.74	+0.57	·
5	V.Reess	🇫🇷 FRANCE	240	-0.03	+0.29	+0.26	·
6	L.Thuillez	🇫🇷 FRANCE	240	-0.03	+0.29	+0.26	·
7	C.Willenken	🇺🇸 USA2	176	+0.14	+0.03	+0.17	▲2
8	A.Boboc	🇷🇴 ROMANIA	160	+0.02	+0.09	+0.11	▼1
9	B.Marina	🇷🇴 ROMANIA	160	+0.02	+0.09	+0.11	▼1
10	M.Zur-Campanile	🇺🇸 USA2	208	+0.21	-0.20	+0.01	▲11
11	G.Mihai	🇷🇴 ROMANIA	144	+0.02	-0.03	-0.01	▲2
12	R.Mihai	🇷🇴 ROMANIA	144	+0.02	-0.03	-0.01	▲2
13	A.Lin	🇺🇸 USA2	128	-0.05	+0.01	-0.04	▼3
14	B.Dehaye	🇧🇪 BELGIUM	192	-0.05	-0.03	-0.08	▼3
15	I.Dewasme	🇧🇪 BELGIUM	192	-0.05	-0.03	-0.08	▼3
16	M.Ionita	🇷🇴 ROMANIA	208	-0.03	-0.16	-0.19	▲3
17	M.Stegaroiu	🇷🇴 ROMANIA	208	-0.03	-0.16	-0.19	▲3
18	A.Rosenthal	🇺🇸 USA2	160	+0.08	-0.28	-0.20	▲4
19	P.Schmidt	🇫🇷 FRANCE	208	-0.07	-0.16	-0.23	▼2
20	J.Zochowska	🇫🇷 FRANCE	208	-0.07	-0.16	-0.23	▼2
21	V.Carcassonne-Labaere	🇧🇪 BELGIUM	224	-0.14	-0.12	-0.26	▼6
22	A.Labaere	🇧🇪 BELGIUM	224	-0.14	-0.12	-0.26	▼6

Stages

Statistics

Tables