KORTERIK Bert · BC GORKUM

224rank
+32.6Butler · 150 bds
+0.22per board
±4.5swing
-0.59vs par /bd · #558/695
+0.30adjusted /bd
Butler per round: 20 -7.1 -3.3 20.6 -1.1 5.1 0.3 -14.7 -14.5 -3.2 24.4 -3 10.1 -9.7 8.7by round

vs par split: bidding -0.41 · play -0.18

Strength of schedule: opponents averaged +0.08/bd (a tough draw) → opponent-adjusted +0.30/bd

Card play — on target: opening leads 68.0% #654 of 694 · declarer play 77.8% #253 of 694 · defence 84.4% #323 of 695

Card play by contract type — on target
vs NTvs a suit
Opening leads66.7% (3)68.2% (22)
Declarer play70.0% (10)82.4% (17)
Defence69.2% (13)88.2% (51)

Opening leads by suit led: ♠ 76.9% (13) · ♥ 25.0% (4) · ♦ 75.0% (4) · ♣ 75.0% (4)

vs par by strain: NT -1.38 (45) · a suit -0.25 (105)

vs par by level: part-score -0.66 (53) · game -0.73 (88) · slam +1.22 (9)

By role: declaring +0.28/bd (-2.30 vs par · 86) · defending +0.13/bd (+1.72 vs par · 64)

By vulnerability: vulnerable +0.66/bd (-0.69 vs par · 74) · not vulnerable -0.21/bd (-0.49 vs par · 76)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1A.De LeeuwW.Vogt – L.FresenOpen10+20.0+2.00+0.70
Round 2A.De LeeuwB.Doussot – D.HarariOpen10-7.1-0.71+0.00
Round 3A.De LeeuwM.Nowosadzki – P.WiankowskiClosed10-3.3-0.33-0.50
Round 4A.De LeeuwJ.Hayman Piafsky – F.VolckerClosed10+20.6+2.06+3.50
Round 5A.De LeeuwK.Konow – A.HagenClosed10-1.1-0.11-0.70
Round 6A.De LeeuwP.Walczak – J.ZadrogaClosed10+5.1+0.51+0.10
Round 7A.De LeeuwM.Cichocki – K.PikusClosed10+0.3+0.03-1.40
Round 8A.De LeeuwK.Schipper – H.Den BoerOpen10-14.7-1.47-3.80
Round 9A.De LeeuwK.Baumann – M.HardingOpen10-14.5-1.45-1.10
Round 10A.De LeeuwP.Both – K.SomersOpen10-3.2-0.32-1.40
Round 11A.De LeeuwR.Coppens – F.Van GorpOpen10+24.4+2.44-0.80
Round 12A.De LeeuwA.Bremer – J.Van Den HoekOpen10-3.0-0.30-5.10
Round 13A.De LeeuwB.Rogoff – J.HaringsClosed10+10.1+1.01+0.20
Round 14A.De LeeuwH.Feiters – M.De MeerClosed10-9.7-0.97+1.40
Round 15A.De LeeuwP.Meijer – R.CabriClosed10+8.7+0.87+0.10

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.

ButlerRoundOpponentsBdContractLeadResvs par
+12.3Round 11COPPENS133NT♦4-3+14
+12.2Round 1VAN DEN BOOM46♥♣J-1+17
+10.9Round 4FRANK66♠♥A-2+13
+10.4Round 1VAN DEN BOOM65♣♠A=+0
+9.9Round 13GARGOYLE ORANJE33NT♠7=+11
+9.5Round 10DOBBELS74♠♦7=+10
+9.4Round 3AZS POLAND303NT♥6+2+11
+9.3Round 8DELFT BREW145♣x♣Q-3+9
+9.3Round 12VAN DEN HOEK297NT♦6=+0
+9.0Round 15RESPOND254♠♠7+1+2
+8.0Round 12VAN DEN HOEK283NT♠10=+10
+7.3Round 11COPPENS185♥x♦3-4+7
+6.5Round 11COPPENS124♠♥K-2+11
+6.2Round 4FRANK34♠♦6+1+6
+6.2Round 14DE MEER164♥x♠K-1+9
+5.6Round 14DE MEER124♠x♠A-2+5
+5.4Round 11COPPENS116NT♣2=+0
+5.1Round 7SIWIK MRAGOWO43♥♦J-2+3
+4.9Round 4FRANK106♠♦5+1+1
+4.9Round 5KASPER KONOW182♥♦5-2+8
+4.9Round 5KASPER KONOW195♣♣6-2+11
+4.7Round 9HARDING214♦♦5-4+6
+4.6Round 6CONSUS OIL214♠♦4=+7
+4.5Round 14DE MEER154♠♦A-2+0
+4.3Round 7SIWIK MRAGOWO63♥♠K=+10
+4.2Round 1VAN DEN BOOM22♥♣J+2+7
+3.9Round 6CONSUS OIL294♠♥A=-1
+3.7Round 2FANDOURABOUL182♣♣2+2+0
+3.7Round 8DELFT BREW204♥♣10=+0
+3.2Round 10DOBBELS43♠♦2=+7
+2.9Round 1VAN DEN BOOM82♦♠A+2+0
+2.9Round 7SIWIK MRAGOWO93NT♦Q+1+1
+2.8Round 4FRANK94♥♦A-1+6
+2.6Round 1VAN DEN BOOM33NT♥2=+0
+2.5Round 1VAN DEN BOOM91NT♦4=+0
+2.4Round 3AZS POLAND284♠♦4+1+1
+2.2Round 6CONSUS OIL222NT♦5-1+10
+2.2Round 10DOBBELS33♣♣3=+1
+2.1Round 15RESPOND274♠♣5+1+0
+1.8Round 2FANDOURABOUL151NT♦Q+1-1
+1.8Round 11COPPENS174♥♣4-1+4
+1.8Round 12VAN DEN HOEK213NT♦2+3-12
+1.7Round 5KASPER KONOW113NT♥2+3+2
+1.7Round 6CONSUS OIL251NT♦5=+0
+1.7Round 13GARGOYLE ORANJE72♠♥K+2-1
+1.6Round 9HARDING273NT♦2=+3
+1.6Round 13GARGOYLE ORANJE22♠♣9-2+9
+1.5Round 12VAN DEN HOEK262♠♣Q+1+0
+1.4Round 5KASPER KONOW173♠♣A-2+0
+1.4Round 13GARGOYLE ORANJE81NT♦3-2+7
+1.2Round 10DOBBELS63NT♦7+1+1
+1.2Round 15RESPOND303NT♠9=-2
+1.1Round 4FRANK54♦♥A+1+6
+1.1Round 6CONSUS OIL302♦♠6+1+0
+1.0Round 2FANDOURABOUL123♥♣8=+0
+1.0Round 2FANDOURABOUL133NT♠J+3+13
+1.0Round 11COPPENS193NT♥5+2-11
+1.0Round 13GARGOYLE ORANJE93NT♠9+3-12
+1.0Round 15RESPOND244♠♦A+1+0
+1.0Round 15RESPOND294♠♣Q+1+0
+0.7Round 4FRANK72♠♦2=+0
+0.7Round 7SIWIK MRAGOWO74♠♥K=+0
+0.7Round 10DOBBELS13NT♠2+2+0
+0.6Round 3AZS POLAND262♠♠K-2-2
+0.6Round 4FRANK23♥♠K=+7
+0.6Round 9HARDING224♥♠Q=+1
+0.5Round 7SIWIK MRAGOWO33NT♠8+1+1
+0.5Round 8DELFT BREW154♠♠3=+1
+0.5Round 12VAN DEN HOEK274♥♦6=-1
+0.4Round 13GARGOYLE ORANJE53NT♣3=-1
+0.4Round 15RESPOND284♠♥A=+1
+0.3Round 1VAN DEN BOOM103♠♥K+1-1
+0.3Round 3AZS POLAND292♠♠2-1-1
+0.3Round 14DE MEER143NT♦J=+11
+0.2Round 9HARDING293NT♠J=-2
+0.1Round 5KASPER KONOW142♠♥A-1-2
-0.0Round 5KASPER KONOW124♥♦4+1+0
+0.0Round 10DOBBELS103♣♠J+1+0
-0.0Round 14DE MEER112♠♦K-1+2
-0.1Round 2FANDOURABOUL144♠♣7-1-2
-0.1Round 5KASPER KONOW165♥♠7+1-1
-0.1Round 6CONSUS OIL273♣♠5+1-7
-0.1Round 14DE MEER194♠♣10+1+0
-0.1Round 15RESPOND224♠♦9=+0
-0.2Round 7SIWIK MRAGOWO23NT♥6+2-1
-0.2Round 10DOBBELS83♠♣6=-6
-0.2Round 13GARGOYLE ORANJE62♥♣5+2+6
-0.2Round 15RESPOND264♠♣J=+0
-0.3Round 13GARGOYLE ORANJE102NT♠J=-11
-0.4Round 4FRANK44♥♦J+1-1
-0.4Round 11COPPENS153NT♦4+1+0
-0.5Round 7SIWIK MRAGOWO52♥♣5=-1
-0.5Round 7SIWIK MRAGOWO104♥♦10+3-17
-0.6Round 9HARDING284♥♣A+2+12
-0.8Round 2FANDOURABOUL172♥♥7-1-2
-0.8Round 3AZS POLAND242♠♥9-1+2
-0.8Round 6CONSUS OIL234♥♥5=+1
-1.0Round 6CONSUS OIL283NT♥4-1-4
-1.0Round 11COPPENS204♠♣3+2-12
-1.1Round 3AZS POLAND254♠♦Q-1+1
-1.1Round 14DE MEER134♥♠Q+2+13
-1.2Round 8DELFT BREW172♠♥J-1-5
-1.3Round 3AZS POLAND213NT♥K=+0
-1.3Round 8DELFT BREW134♥♠3=-3
-1.3Round 13GARGOYLE ORANJE13NT♠3+2+0
-1.5Round 2FANDOURABOUL112♠♣4-2+0
-2.1Round 1VAN DEN BOOM73NT♠3=+0
-2.1Round 9HARDING302♠♣K-2-7
-2.3Round 4FRANK14♥♠A-1+2
-2.3Round 5KASPER KONOW133NT♣6+4-12
-2.4Round 15RESPOND215♥♣9=+0
-2.6Round 3AZS POLAND222♦♠J-1-5
-2.6Round 11COPPENS163NT♠6-2-11
-3.0Round 5KASPER KONOW156♥♦9=+0
-3.0Round 12VAN DEN HOEK253♦♥Q+1-7
-3.1Round 6CONSUS OIL262♥♣2=-6
-3.1Round 9HARDING242♠♦3=+0
-3.3Round 15RESPOND234♣♥3=+0
-3.4Round 6CONSUS OIL243NT♥5=+1
-3.4Round 8DELFT BREW112♣♦2-1-5
-3.6Round 2FANDOURABOUL165♥♠K-1-5
-3.7Round 12VAN DEN HOEK222♥♠A=-6
-3.9Round 2FANDOURABOUL194♠♥A-1-12
-3.9Round 4FRANK83♦♠4=-5
-4.0Round 1VAN DEN BOOM13NT♣A-4-7
-4.1Round 12VAN DEN HOEK233♥♠7+1-10
-4.1Round 13GARGOYLE ORANJE41NT♠5+1-6
-4.3Round 8DELFT BREW163NT♠2-2-12
-4.3Round 14DE MEER184♠♠3-2-9
-4.4Round 9HARDING264♥♦9-1-17
-4.4Round 10DOBBELS54♠♣K-2-5
-4.6Round 3AZS POLAND272NT♦2-1-5
-4.7Round 2FANDOURABOUL204♠♣3-1+9
-4.8Round 10DOBBELS24♠♦K-1-12
-5.0Round 8DELFT BREW186♥x♣A-4-4
-5.3Round 12VAN DEN HOEK244♥♦K+2-11
-5.6Round 3AZS POLAND232♠♠2+1-7
-5.6Round 9HARDING252♣♦8-2-7
-5.7Round 8DELFT BREW194♠♣10-3-9
-5.8Round 9HARDING234♥♠J=+0
-5.9Round 11COPPENS144♠♦K-1-10
-6.0Round 7SIWIK MRAGOWO12NT♣4-1-10
-6.0Round 7SIWIK MRAGOWO86♠♥2=+0
-7.3Round 8DELFT BREW124♠♥A=-10
-8.0Round 12VAN DEN HOEK303NT♦5-1-14
-8.2Round 14DE MEER203NT♠2+1-1
-8.7Round 5KASPER KONOW203NT♣J-2-13
-9.0Round 1VAN DEN BOOM55♦x♥3-2-9
-10.6Round 10DOBBELS93NT♣Q=-10
-12.6Round 14DE MEER177♣♦Q-1-16