BAKKEREN Ton · T ONSTEIN

217rank

+34.5Butler · 150 bds

+0.23per board

±4.2swing

-0.10vs par /bd · #404/695

+0.41adjusted /bd

by round

vs par split: bidding -0.19 · play +0.09

Strength of schedule: opponents averaged +0.18/bd (a tough draw) → opponent-adjusted +0.41/bd

Card play — on target: opening leads 64.7% #674 of 694 · declarer play 79.6% #184 of 694 · defence 85.3% #280 of 695

Card play by contract type — on target
	vs NT	vs a suit
Opening leads	80.0% (5)	58.3% (12)
Declarer play	100.0% (12)	73.0% (37)
Defence	72.2% (18)	89.5% (57)

Opening leads by suit led: ♠ 66.7% (3) · ♥ 75.0% (4) · ♦ 57.1% (7) · ♣ 66.7% (3)

vs par by strain: NT -0.55 (33) · a suit +0.03 (117)

vs par by level: part-score +0.21 (56) · game +0.14 (90) · slam -10.00 (4)

By role: declaring +0.35/bd (-2.69 vs par · 75) · defending +0.10/bd (+2.49 vs par · 75)

By vulnerability: vulnerable +0.36/bd (-0.49 vs par · 75) · not vulnerable +0.10/bd (+0.29 vs par · 75)

By round↑ top

Round	Partner	Opponents	Room	Bds	Butler	Avg	vs par
Round 1	F.Bakkeren	K.Wooles – J.Cormack	Open	10	-0.2	-0.02	+0.40
Round 2	F.Bakkeren	J.Henri – J.Lafourcade	Closed	10	+36.5	+3.65	+2.70
Round 3	F.Bakkeren	V.Aronov – J.Stefanov	Closed	10	+7.9	+0.79	+0.70
Round 4	F.Bakkeren	F.Brondum – J.Ron	Open	10	+16.5	+1.65	+2.90
Round 5	F.Bakkeren	N.Edgtton – J.Gosney	Closed	10	+15.1	+1.51	+2.10
Round 6	F.Bakkeren	P.Miechowicz – J.Kotorowicz	Open	10	-8.9	-0.89	-0.80
Round 7	F.Bakkeren	Z.Mahmood – R.Welland	Open	10	-11.2	-1.12	-2.60
Round 8	F.Bakkeren	B.Einarsson – A.Jorgensen	Closed	10	+2.9	+0.29	+2.50
Round 9	F.Bakkeren	K.Furuta – H.Kaku	Closed	10	+4.4	+0.44	+0.70
Round 10	F.Bakkeren	D.Nikolenkov – S.Magnusson	Open	10	+11.6	+1.16	+0.00
Round 11	F.Bakkeren	G.Matushko – J.Khokhlov	Closed	10	-21.3	-2.13	-4.90
Round 12	F.Bakkeren	C.Willenken – M.Rosenberg	Open	10	-3.6	-0.36	-5.90
Round 13	F.Bakkeren	B.Lund – P.Austberg	Closed	10	-0.3	-0.03	+0.50
Round 14	F.Bakkeren	L.Fisher – R.Schwartz	Closed	10	-17.4	-1.74	-0.90
Round 15	F.Bakkeren	A.Jaszczak – M.Lesniewski	Open	10	+2.5	+0.25	+1.10

Every board — best Butler first↑ top

vs par = IMPs this pair scored above (+) or below (−) the board’s double-dummy par — what bidding and play (theirs and the opponents’) added or gave away against perfect play.

Butler	Round	Opponents	Bd	Contract	Lead	Res	vs par
+13.6	Round 3	BULGARIA	28	4♥	♠K	=	+14
+12.3	Round 2	FRENCKEN	15	4♥	♦6	+1	+13
+11.3	Round 10	PIEDRA	4	2♠x	♣A	=	+13
+10.4	Round 4	DENMARK	4	3♥	♥8	=	+10
+8.0	Round 4	DENMARK	1	5♦x	♥K	-3	+12
+8.0	Round 9	ONI	27	3NT	♦Q	-1	+8
+7.5	Round 10	PIEDRA	10	2♥	♦3	-2	+8
+7.3	Round 10	PIEDRA	5	4♥	♣8	+2	+9
+6.9	Round 5	OZ OPEN	20	5♦	♠9	-1	+12
+6.5	Round 11	PARIMATCH	12	5♣	♥K	-2	+11
+6.3	Round 1	RAYNER	9	3NT	♣7	-3	+9
+6.1	Round 4	DENMARK	2	3♦	♦2	=	+11
+6.1	Round 12	GORDON	23	4♥	♥4	+1	+1
+5.7	Round 4	DENMARK	3	4♠	♦7	=	+6
+5.4	Round 2	FRENCKEN	20	2♥	♥5	+1	-8
+5.3	Round 15	A J DIAMENT	24	3♠	♥5	+2	+6
+5.1	Round 7	SMIRNOV	8	4♠	♥A	+2	+11
+5.0	Round 2	FRENCKEN	12	2♠	♣5	=	+6
+4.9	Round 6	POLAND	25	3NTx	♠Q	-1	+7
+4.5	Round 13	BLUND	10	4♠	♥Q	-1	+12
+4.4	Round 2	FRENCKEN	17	2♥	♦A	=	+6
+4.3	Round 8	ICELAND	16	3NT	♠4	-2	+12
+3.9	Round 2	FRENCKEN	19	4♠	♦K	-1	+12
+3.7	Round 3	BULGARIA	25	4♠	♥A	-2	+2
+3.7	Round 5	OZ OPEN	14	3♦	♠10	-2	+5
+3.5	Round 2	FRENCKEN	14	2♠	♣5	=	+5
+3.4	Round 6	POLAND	24	3NT	♥4	=	-1
+3.4	Round 8	ICELAND	19	3♠	♦3	-2	+7
+3.4	Round 9	ONI	25	3♦	♣5	=	+5
+3.3	Round 5	OZ OPEN	13	5♠	♣A	+1	+13
+3.3	Round 11	PARIMATCH	18	4♠	♣Q	=	+3
+3.0	Round 5	OZ OPEN	15	6♥	♦10	=	+0
+2.9	Round 1	RAYNER	7	3NT	♥2	+1	+1
+2.8	Round 4	DENMARK	9	4♥	♦K	-1	+6
+2.6	Round 2	FRENCKEN	18	5♣	♦7	-2	+6
+2.5	Round 6	POLAND	22	2♠	♥7	+1	-7
+2.4	Round 13	BLUND	3	3♦	♣K	-1	+5
+2.4	Round 14	ISRAEL JUNIORS	17	6♠	♦8	=	-10
+2.4	Round 15	A J DIAMENT	21	4♥	♣7	+1	+0
+2.3	Round 5	OZ OPEN	17	3♣	♦Q	-1	+4
+2.3	Round 8	ICELAND	13	4♥	♦7	+1	+4
+2.3	Round 9	ONI	22	4♥	♣K	+3	+2
+1.8	Round 2	FRENCKEN	11	2♠	♦10	=	+0
+1.8	Round 4	DENMARK	8	2♠	♦K	=	+0
+1.7	Round 8	ICELAND	14	4♠	♦8	-1	+4
+1.7	Round 12	GORDON	30	4♥	♦A	+1	-10
+1.6	Round 9	ONI	30	3♣	♠Q	=	+7
+1.6	Round 10	PIEDRA	3	1NT	♠3	=	+0
+1.5	Round 1	RAYNER	2	4♥	♣J	-1	-2
+1.5	Round 8	ICELAND	18	5♠	♥K	=	+0
+1.5	Round 12	GORDON	27	4♥	♣10	+1	+0
+1.4	Round 5	OZ OPEN	18	2♥	♠J	-1	-2
+1.4	Round 12	GORDON	22	2♥	♦10	-1	-1
+1.4	Round 15	A J DIAMENT	25	2♠	♦K	+1	+10
+1.3	Round 3	BULGARIA	21	5♣	♥10	=	+0
+1.3	Round 13	BLUND	1	3NT	♦2	+2	+0
+1.1	Round 5	OZ OPEN	16	5♥	♣10	+2	+2
+1.0	Round 13	BLUND	9	3NT	♥7	+1	+13
+0.8	Round 3	BULGARIA	24	2♠	♥9	-1	-2
+0.8	Round 6	POLAND	23	4♥	♥5	=	-1
+0.8	Round 10	PIEDRA	6	3NT	♦7	=	+0
+0.8	Round 12	GORDON	21	3NT	♦2	+2	-12
+0.8	Round 14	ISRAEL JUNIORS	13	4♥	♠Q	=	+13
+0.7	Round 3	BULGARIA	30	4♦	♣J	-1	-2
+0.7	Round 4	DENMARK	7	2♠	♦2	=	+0
+0.7	Round 7	SMIRNOV	7	4♠	♥2	=	+0
+0.7	Round 10	PIEDRA	1	3NT	♥4	+2	+0
+0.6	Round 9	ONI	28	5♥	♠2	+1	-12
+0.6	Round 12	GORDON	26	3♦	♣A	=	-1
+0.5	Round 7	SMIRNOV	6	4♥	♣A	-2	+5
+0.5	Round 8	ICELAND	15	4♠	♠5	+1	+0
+0.2	Round 13	BLUND	8	1NT	♦3	-3	-6
+0.2	Round 15	A J DIAMENT	26	4♠	♣J	=	+0
+0.1	Round 14	ISRAEL JUNIORS	18	4♠x	♠6	-2	-5
+0.1	Round 15	A J DIAMENT	22	4♠	♦3	=	+0
+0.0	Round 5	OZ OPEN	12	4♥	♠2	+1	+0
-0.0	Round 9	ONI	21	3♠	♥J	+2	-2
+0.0	Round 13	BLUND	2	3♥	♦J	+1	-8
-0.1	Round 14	ISRAEL JUNIORS	19	4♠	♣10	+1	+0
-0.2	Round 1	RAYNER	6	3♣	♠A	=	+10
-0.2	Round 7	SMIRNOV	2	3NT	♣Q	+2	-1
-0.2	Round 9	ONI	29	3NT	♠J	=	+2
-0.3	Round 1	RAYNER	10	3♠	♥K	+1	+1
-0.4	Round 8	ICELAND	11	2♥	♠3	=	+1
-0.4	Round 11	PARIMATCH	15	3NT	♦4	+1	+0
-0.4	Round 13	BLUND	5	3NT	♣2	=	+1
-0.4	Round 15	A J DIAMENT	28	4♠	♦Q	=	-1
-0.5	Round 3	BULGARIA	23	3♣	♠K	+1	+0
-0.5	Round 7	SMIRNOV	3	3NT	♦Q	=	+0
-0.6	Round 7	SMIRNOV	1	3♠	♦4	+1	-6
-0.6	Round 7	SMIRNOV	5	3♦	♦8	-2	-1
-0.6	Round 14	ISRAEL JUNIORS	14	3NT	♥2	+1	+11
-0.7	Round 13	BLUND	6	2♥	♣10	+1	-7
-1.0	Round 2	FRENCKEN	13	3NT	♣5	+3	-13
-1.0	Round 10	PIEDRA	7	3♦	♠Q	-1	-1
-1.0	Round 11	PARIMATCH	20	4♠	♥J	+2	-12
-1.0	Round 15	A J DIAMENT	29	4♠	♥5	+1	+0
-1.1	Round 1	RAYNER	5	2♥x	♦A	-1	-3
-1.1	Round 6	POLAND	30	1♥	♣7	+1	+0
-1.2	Round 10	PIEDRA	8	2♠	♣3	=	-7
-1.2	Round 14	ISRAEL JUNIORS	15	2♠	♦K	+1	-6
-1.2	Round 15	A J DIAMENT	30	3NT	♣8	=	+2
-1.3	Round 1	RAYNER	4	4♥	♦10	+1	-13
-1.3	Round 4	DENMARK	6	4♠	♥K	=	+1
-1.4	Round 2	FRENCKEN	16	5♠	♥4	-2	+0
-1.4	Round 3	BULGARIA	26	3♥	♥2	+1	+1
-1.4	Round 3	BULGARIA	29	3♥	♠A	=	+0
-1.4	Round 14	ISRAEL JUNIORS	11	2♠	♦A	-2	+0
-1.7	Round 5	OZ OPEN	11	3NT	♥3	+3	-2
-1.7	Round 13	BLUND	4	1NT	♠3	-1	+1
-1.8	Round 6	POLAND	26	3♠	♥3	-1	+0
-2.0	Round 11	PARIMATCH	14	2♠	♦K	+1	-7
-2.1	Round 1	RAYNER	8	2♦	♠K	+1	+1
-2.1	Round 15	A J DIAMENT	27	4♠	♣7	+1	+0
-2.2	Round 9	ONI	23	3♥	♠J	=	-10
-2.2	Round 15	A J DIAMENT	23	5♣	♥7	-1	-6
-2.3	Round 11	PARIMATCH	13	4♥	♥6	+1	+0
-2.4	Round 3	BULGARIA	22	3♣	♠J	=	+0
-2.6	Round 1	RAYNER	3	3NT	♠9	=	+0
-2.6	Round 11	PARIMATCH	16	3NT	♠6	-2	-11
-2.7	Round 6	POLAND	28	1♠	♦5	+1	+0
-2.8	Round 7	SMIRNOV	10	5♦	♣J	+1	-17
-2.8	Round 8	ICELAND	17	2♠	♥J	=	+0
-3.0	Round 12	GORDON	25	3♦	♥Q	+1	-7
-3.2	Round 9	ONI	24	4♠	♠3	-3	-6
-3.3	Round 1	RAYNER	1	3♦	♣K	=	+0
-3.7	Round 8	ICELAND	20	4♥	♣10	=	+0
-3.7	Round 12	GORDON	29	6♥	♦6	=	-13
-3.7	Round 14	ISRAEL JUNIORS	16	5♦	♥3	=	-3
-3.9	Round 6	POLAND	29	4♠	♦J	=	+1
-3.9	Round 8	ICELAND	12	4♥	♠K	-1	-3
-4.4	Round 4	DENMARK	5	5♣	♥3	=	+0
-4.4	Round 12	GORDON	24	4♠	♣J	+3	-10
-4.6	Round 6	POLAND	21	4♠	♦5	=	-7
-4.6	Round 12	GORDON	28	3NT	♥A	-1	-6
-4.8	Round 7	SMIRNOV	4	3♠	♣Q	-2	-7
-4.8	Round 10	PIEDRA	2	4♠	♦10	-1	-12
-4.9	Round 5	OZ OPEN	19	4NT	♠6	-2	-11
-4.9	Round 11	PARIMATCH	11	3NT	♥3	+3	-11
-5.5	Round 14	ISRAEL JUNIORS	12	3NT	♠2	-2	-8
-5.9	Round 9	ONI	26	3NT	♠2	=	+13
-6.4	Round 6	POLAND	27	3NT	♦9	=	+0
-6.5	Round 3	BULGARIA	27	3NT	♦3	=	-6
-6.9	Round 13	BLUND	7	4♠	♠5	-1	-6
-7.6	Round 11	PARIMATCH	17	4♥	♣10	=	-8
-8.0	Round 7	SMIRNOV	9	2♦	♣A	=	-10
-8.2	Round 14	ISRAEL JUNIORS	20	4♥	♣J	=	-1
-10.3	Round 11	PARIMATCH	19	4♠	♦Q	-2	-14
-10.6	Round 10	PIEDRA	9	3NT	♠Q	=	-10
-13.3	Round 4	DENMARK	10	7♠	♦2	-1	-17

Stages

Tables

Rounds

BAKKEREN Ton · T ONSTEIN

By round↑ top

Every board — best Butler first↑ top