Wuhan 2019 — 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	C.Bjerkan	🇺🇸 USA 1	208	+1.10	+229.0
2	H.Weinstein	🇺🇸 USA 1	208	+1.10	+229.0
3	A.Gromov	🇷🇺 RUSSIA	272	+0.79	+214.0
4	A.Gulevich	🇷🇺 RUSSIA	272	+0.79	+214.0
5	F.Brown	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	176	+0.64	+112.0
6	M.Byrne	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	176	+0.64	+112.0
7	G.Mihai	🇷🇴 ROMANIA	175	+0.55	+96.0
8	R.Mihai	🇷🇴 ROMANIA	175	+0.55	+96.0
9	M.Ionita	🇷🇴 ROMANIA	192	+0.03	+6.0
10	M.Stegaroiu	🇷🇴 ROMANIA	192	+0.03	+6.0
11	A.Dubinin	🇷🇺 RUSSIA	176	+0.01	+2.0
12	T.Ponomareva	🇷🇺 RUSSIA	176	+0.01	+2.0
13	F.Hinden	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	191	-0.07	-13.0
14	G.Osborne	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	191	-0.07	-13.0
15	A.Graves	🇺🇸 USA 1	240	-0.27	-65.0
16	J.Meyers	🇺🇸 USA 1	240	-0.27	-65.0
17	M.Balint	🇷🇴 ROMANIA	176	-0.35	-62.0
18	B.Marina	🇷🇴 ROMANIA	176	-0.35	-62.0
19	S.Brock	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	176	-0.93	-163.0
20	B.Myers	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	176	-0.93	-163.0
21	C.Henner	🇺🇸 USA 1	128	-0.98	-126.0
22	U.Ivatury	🇺🇸 USA 1	128	-0.98	-126.0
23	A.Gerasimov	🇷🇺 RUSSIA	128	-1.14	-146.0
24	O.Vorobeychikova	🇷🇺 RUSSIA	128	-1.14	-146.0
25	B.Cronier	🇫🇷 FRANCE	64	+1.36	+87.0
26	P.Cronier	🇫🇷 FRANCE	64	+1.36	+87.0
27	H.Bertens	🇺🇸 USA 2	48	+0.83	+40.0
28	J.Wolpert	🇺🇸 USA 2	48	+0.83	+40.0
29	Z.Liao	🇨🇳 CHINA	64	+0.36	+23.0
30	Z.Xie	🇨🇳 CHINA	64	+0.36	+23.0
31	H.Wu	🇨🇳 CHINA	32	+0.12	+4.0
32	J.Alfejeva	🇱🇻 LATVIA	96	+0.02	+2.0
33	K.Rubins	🇱🇻 LATVIA	96	+0.02	+2.0
34	P.Wang	🇨🇳 CHINA	48	-0.08	-4.0
35	J.Bethers	🇱🇻 LATVIA	96	-0.09	-9.0
36	M.Romanovska	🇱🇻 LATVIA	96	-0.09	-9.0
37	S.Wu	🇨🇳 CHINA	80	-0.24	-19.0
38	J.Chen	🇨🇳 CHINA	96	-0.28	-27.0
39	D.Gaviard	🇫🇷 FRANCE	80	-0.29	-23.0
40	J.Rombaut	🇫🇷 FRANCE	80	-0.29	-23.0
41	C.Willenken	🇺🇸 USA 2	80	-0.51	-41.0
42	M.Zur-Campanile	🇺🇸 USA 2	80	-0.51	-41.0
43	D.Rosenberg	🇺🇸 USA 2	64	-0.52	-33.0
44	A.Rosenthal	🇺🇸 USA 2	64	-0.52	-33.0
45	N.Frey	🇫🇷 FRANCE	48	-2.23	-107.0
46	F.Volcker	🇫🇷 FRANCE	48	-2.23	-107.0

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	O.Vorobeychikova	🇷🇺 RUSSIA	31	90.3%	0.10
2	M.Ionita	🇷🇴 ROMANIA	50	86.0%	0.14
3	A.Gromov	🇷🇺 RUSSIA	80	85.0%	0.16
4	H.Weinstein	🇺🇸 USA 1	62	83.9%	0.18
5	U.Ivatury	🇺🇸 USA 1	24	83.3%	0.17
6	M.Balint	🇷🇴 ROMANIA	48	83.3%	0.19
7	C.Bjerkan	🇺🇸 USA 1	53	83.0%	0.17
8	M.Byrne	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	46	82.6%	0.20
9	J.Meyers	🇺🇸 USA 1	66	81.8%	0.18
10	A.Gerasimov	🇷🇺 RUSSIA	38	81.6%	0.21
11	A.Dubinin	🇷🇺 RUSSIA	42	81.0%	0.19
12	M.Stegaroiu	🇷🇴 ROMANIA	48	79.2%	0.21
13	F.Hinden	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	49	77.6%	0.29
14	S.Brock	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	39	76.9%	0.23
15	T.Ponomareva	🇷🇺 RUSSIA	42	76.2%	0.33
16	A.Graves	🇺🇸 USA 1	54	75.9%	0.30
17	B.Marina	🇷🇴 ROMANIA	36	75.0%	0.25
18	R.Mihai	🇷🇴 ROMANIA	52	75.0%	0.27
19	G.Mihai	🇷🇴 ROMANIA	42	73.8%	0.31
20	A.Gulevich	🇷🇺 RUSSIA	60	71.7%	0.32
21	F.Brown	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	45	71.1%	0.33
22	B.Myers	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	36	69.4%	0.39
23	C.Henner	🇺🇸 USA 1	41	68.3%	0.32
24	G.Osborne	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	51	64.7%	0.35
25	F.Volcker	🇫🇷 FRANCE	9	100.0%	0.00
26	J.Chen	🇨🇳 CHINA	17	94.1%	0.06
27	J.Bethers	🇱🇻 LATVIA	34	91.2%	0.15
28	Z.Liao	🇨🇳 CHINA	20	90.0%	0.10
29	J.Alfejeva	🇱🇻 LATVIA	20	85.0%	0.20
30	C.Willenken	🇺🇸 USA 2	19	84.2%	0.16
31	D.Gaviard	🇫🇷 FRANCE	12	83.3%	0.17
32	J.Rombaut	🇫🇷 FRANCE	16	81.2%	0.25
33	M.Zur-Campanile	🇺🇸 USA 2	21	81.0%	0.19
34	Z.Xie	🇨🇳 CHINA	15	80.0%	0.20
35	J.Wolpert	🇺🇸 USA 2	15	80.0%	0.20
36	B.Cronier	🇫🇷 FRANCE	19	78.9%	0.26
37	H.Bertens	🇺🇸 USA 2	14	78.6%	0.29
38	K.Rubins	🇱🇻 LATVIA	21	76.2%	0.33
39	S.Wu	🇨🇳 CHINA	23	73.9%	0.30
40	M.Romanovska	🇱🇻 LATVIA	20	70.0%	0.35
41	D.Rosenberg	🇺🇸 USA 2	16	68.8%	0.31
42	P.Wang	🇨🇳 CHINA	6	66.7%	0.33
43	A.Rosenthal	🇺🇸 USA 2	11	63.6%	0.36
44	N.Frey	🇫🇷 FRANCE	13	61.5%	0.39
45	H.Wu	🇨🇳 CHINA	10	60.0%	0.40
46	P.Cronier	🇫🇷 FRANCE	16	56.2%	0.56

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	A.Gulevich	🇷🇺 RUSSIA	71	84.5%	0.17
2	M.Ionita	🇷🇴 ROMANIA	48	81.2%	0.25
3	F.Brown	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	34	79.4%	0.27
4	A.Gerasimov	🇷🇺 RUSSIA	29	79.3%	0.28
5	M.Byrne	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	51	78.4%	0.23
6	C.Henner	🇺🇸 USA 1	23	78.3%	0.26
7	R.Mihai	🇷🇴 ROMANIA	40	77.5%	0.28
8	B.Marina	🇷🇴 ROMANIA	56	76.8%	0.25
9	J.Meyers	🇺🇸 USA 1	55	76.4%	0.31
10	A.Dubinin	🇷🇺 RUSSIA	42	76.2%	0.26
11	S.Brock	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	54	74.1%	0.37
12	F.Hinden	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	49	73.5%	0.37
13	H.Weinstein	🇺🇸 USA 1	44	72.7%	0.32
14	B.Myers	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	47	72.3%	0.34
15	A.Graves	🇺🇸 USA 1	64	71.9%	0.39
16	M.Stegaroiu	🇷🇴 ROMANIA	46	71.7%	0.33
17	G.Osborne	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	42	71.4%	0.41
18	A.Gromov	🇷🇺 RUSSIA	61	70.5%	0.33
19	T.Ponomareva	🇷🇺 RUSSIA	50	70.0%	0.34
20	M.Balint	🇷🇴 ROMANIA	36	69.4%	0.44
21	U.Ivatury	🇺🇸 USA 1	40	67.5%	0.53
22	C.Bjerkan	🇺🇸 USA 1	49	67.3%	0.41
23	G.Mihai	🇷🇴 ROMANIA	41	65.9%	0.44
24	O.Vorobeychikova	🇷🇺 RUSSIA	30	63.3%	0.43
25	P.Wang	🇨🇳 CHINA	13	92.3%	0.08
26	Z.Xie	🇨🇳 CHINA	10	90.0%	0.10
27	K.Rubins	🇱🇻 LATVIA	23	87.0%	0.22
28	J.Bethers	🇱🇻 LATVIA	20	80.0%	0.20
29	C.Willenken	🇺🇸 USA 2	20	80.0%	0.30
30	J.Rombaut	🇫🇷 FRANCE	27	77.8%	0.26
31	J.Chen	🇨🇳 CHINA	31	77.4%	0.26
32	B.Cronier	🇫🇷 FRANCE	15	73.3%	0.33
33	D.Gaviard	🇫🇷 FRANCE	25	72.0%	0.28
34	A.Rosenthal	🇺🇸 USA 2	17	70.6%	0.29
35	M.Zur-Campanile	🇺🇸 USA 2	20	70.0%	0.35
36	H.Bertens	🇺🇸 USA 2	9	66.7%	0.33
37	J.Wolpert	🇺🇸 USA 2	10	60.0%	0.40
38	S.Wu	🇨🇳 CHINA	25	60.0%	0.60
39	J.Alfejeva	🇱🇻 LATVIA	32	59.4%	0.53
40	M.Romanovska	🇱🇻 LATVIA	22	59.1%	0.41
41	Z.Liao	🇨🇳 CHINA	19	57.9%	0.53
42	P.Cronier	🇫🇷 FRANCE	14	57.1%	0.50
43	D.Rosenberg	🇺🇸 USA 2	20	55.0%	0.55
44	H.Wu	🇨🇳 CHINA	2	50.0%	0.50
45	F.Volcker	🇫🇷 FRANCE	14	50.0%	0.64
46	N.Frey	🇫🇷 FRANCE	12	50.0%	0.75

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	C.Bjerkan	🇺🇸 USA 1	115	92.2%	0.08
2	H.Weinstein	🇺🇸 USA 1	115	92.2%	0.08
3	M.Balint	🇷🇴 ROMANIA	84	90.5%	0.12
4	B.Marina	🇷🇴 ROMANIA	84	90.5%	0.12
5	A.Graves	🇺🇸 USA 1	120	88.3%	0.15
6	J.Meyers	🇺🇸 USA 1	120	88.3%	0.15
7	G.Mihai	🇷🇴 ROMANIA	94	87.2%	0.19
8	R.Mihai	🇷🇴 ROMANIA	94	87.2%	0.19
9	A.Gromov	🇷🇺 RUSSIA	140	87.1%	0.16
10	A.Gulevich	🇷🇺 RUSSIA	140	87.1%	0.16
11	F.Hinden	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	100	86.0%	0.18
12	G.Osborne	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	100	86.0%	0.18
13	A.Dubinin	🇷🇺 RUSSIA	84	85.7%	0.15
14	T.Ponomareva	🇷🇺 RUSSIA	84	85.7%	0.15
15	F.Brown	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	91	85.7%	0.20
16	M.Byrne	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	91	85.7%	0.20
17	M.Ionita	🇷🇴 ROMANIA	98	84.7%	0.19
18	M.Stegaroiu	🇷🇴 ROMANIA	98	84.7%	0.19
19	S.Brock	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	75	81.3%	0.24
20	B.Myers	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	75	81.3%	0.24
21	A.Gerasimov	🇷🇺 RUSSIA	69	81.2%	0.26
22	O.Vorobeychikova	🇷🇺 RUSSIA	69	81.2%	0.26
23	C.Henner	🇺🇸 USA 1	65	76.9%	0.28
24	U.Ivatury	🇺🇸 USA 1	65	76.9%	0.28
25	D.Rosenberg	🇺🇸 USA 2	27	96.3%	0.04
26	A.Rosenthal	🇺🇸 USA 2	27	96.3%	0.04
27	J.Chen	🇨🇳 CHINA	39	92.3%	0.08
28	S.Wu	🇨🇳 CHINA	39	92.3%	0.08
29	D.Gaviard	🇫🇷 FRANCE	28	89.3%	0.11
30	J.Rombaut	🇫🇷 FRANCE	28	89.3%	0.11
31	P.Wang	🇨🇳 CHINA	17	88.2%	0.12
32	H.Wu	🇨🇳 CHINA	17	88.2%	0.12
33	H.Bertens	🇺🇸 USA 2	29	86.2%	0.14
34	J.Wolpert	🇺🇸 USA 2	29	86.2%	0.14
35	Z.Liao	🇨🇳 CHINA	35	85.7%	0.14
36	Z.Xie	🇨🇳 CHINA	35	85.7%	0.14
37	C.Willenken	🇺🇸 USA 2	40	82.5%	0.17
38	M.Zur-Campanile	🇺🇸 USA 2	40	82.5%	0.17
39	N.Frey	🇫🇷 FRANCE	22	81.8%	0.23
40	F.Volcker	🇫🇷 FRANCE	22	81.8%	0.23
41	B.Cronier	🇫🇷 FRANCE	35	80.0%	0.23
42	P.Cronier	🇫🇷 FRANCE	35	80.0%	0.23
43	J.Bethers	🇱🇻 LATVIA	54	79.6%	0.22
44	M.Romanovska	🇱🇻 LATVIA	54	79.6%	0.22
45	J.Alfejeva	🇱🇻 LATVIA	41	73.2%	0.32
46	K.Rubins	🇱🇻 LATVIA	41	73.2%	0.32

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.Ionita	🇷🇴 ROMANIA	192	-0.08	+0.54	+0.46	·
2	M.Stegaroiu	🇷🇴 ROMANIA	192	-0.08	+0.54	+0.46	·
3	A.Graves	🇺🇸 USA 1	240	-0.09	+0.43	+0.34	·
4	J.Meyers	🇺🇸 USA 1	240	-0.09	+0.43	+0.34	·
5	F.Brown	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	176	-0.00	+0.24	+0.24	·
6	M.Byrne	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	176	-0.00	+0.24	+0.24	·
7	A.Dubinin	🇷🇺 RUSSIA	176	-0.03	+0.24	+0.21	·
8	T.Ponomareva	🇷🇺 RUSSIA	176	-0.03	+0.24	+0.21	·
9	A.Gromov	🇷🇺 RUSSIA	272	-0.02	+0.12	+0.10	·
10	A.Gulevich	🇷🇺 RUSSIA	272	-0.02	+0.12	+0.10	·
11	M.Balint	🇷🇴 ROMANIA	176	-0.02	+0.10	+0.08	·
12	B.Marina	🇷🇴 ROMANIA	176	-0.02	+0.10	+0.08	·
13	C.Bjerkan	🇺🇸 USA 1	208	-0.03	+0.04	+0.00	·
14	H.Weinstein	🇺🇸 USA 1	208	-0.03	+0.04	+0.00	·
15	S.Brock	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	176	+0.04	-0.10	-0.07	▲2
16	B.Myers	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	176	+0.04	-0.10	-0.07	▲2
17	A.Gerasimov	🇷🇺 RUSSIA	128	+0.15	-0.28	-0.13	▲2
18	O.Vorobeychikova	🇷🇺 RUSSIA	128	+0.15	-0.28	-0.13	▲2
19	G.Mihai	🇷🇴 ROMANIA	176	-0.16	-0.10	-0.26	▼4
20	R.Mihai	🇷🇴 ROMANIA	176	-0.16	-0.10	-0.26	▼4
21	F.Hinden	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	192	+0.12	-0.39	-0.28	·
22	G.Osborne	🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND	192	+0.12	-0.39	-0.28	·
23	C.Henner	🇺🇸 USA 1	128	-0.03	-0.48	-0.51	·
24	U.Ivatury	🇺🇸 USA 1	128	-0.03	-0.48	-0.51	·

Stages

Statistics