🇿🇦 PIETERS Errol · SOUTH AFRICA

110rank
-123.6Butler · 224 bds
-0.55per board
±4.3swing
-0.65vs par /bd · #104/127
-0.69adjusted /bd
Butler per round: -20.5 30.5 0.2 -1.9 8.8 -31.9 -8.5 -22.2 -11.7 20.5 -20.1 -8.3 -19 -39.5by round

vs par split: bidding -0.03 · play -0.63

Strength of schedule: opponents averaged -0.14/bd (an easy draw) → opponent-adjusted -0.69/bd

Card play — on target: opening leads 76.9% #105 of 127 · declarer play 61.2% #124 of 127 · defence 90.5% #17 of 127

Card play by contract type — on target
vs NTvs a suit
Opening leads62.5% (16)83.3% (36)
Declarer play46.7% (15)67.6% (34)
Defence88.0% (25)91.4% (70)

Opening leads by suit led: ♠ 63.6% (11) · ♥ 78.6% (14) · ♦ 75.0% (12) · ♣ 86.7% (15)

vs par by strain: NT +0.32 (59) · a suit -1.01 (163)

vs par by level: part-score +0.14 (85) · game -1.37 (125) · slam +1.17 (12)

By role: declaring -0.84/bd (-2.64 vs par · 129) · defending -0.16/bd (+2.04 vs par · 95)

By vulnerability: vulnerable -0.40/bd (-1.06 vs par · 112) · not vulnerable -0.71/bd (-0.24 vs par · 112)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1J.DorfanM.Becker – A.GravesOpen16-20.5-1.28-2.00
Round 2J.DorfanC.Ackerley – D.RussellClosed16+30.5+1.91+2.88
Round 5J.DorfanA.Aziz – M.KamelOpen16+0.2+0.01-0.62
Round 6J.DorfanK.Yamada – M.InoClosed16-1.9-0.12-1.69
Round 7J.DorfanA.Magalhaes – J.NetoOpen16+8.8+0.55+0.81
Round 9J.DorfanI.Khalil – S.KhanOpen16-31.9-1.99-2.94
Round 10J.DorfanC.Bjaring – J.OstbergClosed16-8.5-0.53+0.50
Round 11J.DorfanS.Sabbatini – A.ComellaOpen16-22.2-1.39-1.19
Round 14J.DorfanH.Obermair – J.FucikOpen16-11.7-0.73-0.25
Round 15J.DorfanJ.Cassin – C.BistoquetOpen16+20.5+1.28+2.38
Round 16J.DorfanE.Tse – R.LingOpen16-20.1-1.26-4.00
Round 18J.DorfanI.Aksoy – M.SirikliogluOpen16-8.3-0.52+0.75
Round 19J.DorfanV.Markowicz – K.MoszczynskiClosed16-19.0-1.19+0.38
Round 20J.DorfanD.Turner – J.GowdyClosed16-39.5-2.47-4.12

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
+13.5Round 14🇦🇹 AUSTRIA254♠x♦K=+14
+11.1Round 5🇪🇬 EGYPT54♥x♣K-4+5
+10.1Round 2🇳🇿 NEW ZEALAND245♠x♣K-2+11
+8.6Round 2🇳🇿 NEW ZEALAND174NT♦2+3+14
+7.3Round 2🇳🇿 NEW ZEALAND301NT♦Q+1+7
+7.2Round 15🇬🇵 GUADELOUPE116♥♦10-2+11
+7.1Round 20🇨🇦 CANADA294♠♦2=+3
+6.9Round 1🇺🇸 USA264♥♠8-1+6
+6.3Round 2🇳🇿 NEW ZEALAND292♥♦7-1+6
+6.0Round 5🇪🇬 EGYPT24♠♦7-2+11
+6.0Round 10🇸🇪 SWEDEN243NT♥4+3+11
+6.0Round 10🇸🇪 SWEDEN303NT♠J-2+11
+5.8Round 1🇺🇸 USA224♠♥K-1+5
+5.6Round 7🇧🇷 BRAZIL33NT♠K-1+6
+5.5Round 18🇹🇷 TURKEY294♥♠6-2+8
+5.2Round 7🇧🇷 BRAZIL104♠♥10=+0
+5.2Round 10🇸🇪 SWEDEN194♥♠8=+7
+5.1Round 19🇵🇱 POLAND133♠♥3-1+6
+5.0Round 15🇬🇵 GUADELOUPE13NT♠8-1+10
+4.9Round 11🇮🇹 ITALY93NT♣4-1+12
+4.5Round 7🇧🇷 BRAZIL121♠♥3=+5
+4.3Round 1🇺🇸 USA2154♥♦7+1+0
+4.2Round 6🇯🇵 JAPAN175♦x♦7-2+5
+4.2Round 14🇦🇹 AUSTRIA322♠♣K=+1
+4.1Round 15🇬🇵 GUADELOUPE122♠♥4+1+7
+4.1Round 19🇵🇱 POLAND33NT♣8=-1
+4.0Round 15🇬🇵 GUADELOUPE132♣♣5=+5
+3.7Round 18🇹🇷 TURKEY273♦♠A-1+10
+3.7Round 19🇵🇱 POLAND152♥♠Q=+6
+3.5Round 10🇸🇪 SWEDEN271♠♦6+3+2
+3.4Round 2🇳🇿 NEW ZEALAND212♥♥4+1+1
+3.4Round 6🇯🇵 JAPAN234♠♦Q+2+9
+3.4Round 19🇵🇱 POLAND94♥♦J+2+2
+3.2Round 1🇺🇸 USA251♥♦9=+5
+3.2Round 15🇬🇵 GUADELOUPE34♠♣10=+7
+3.1Round 15🇬🇵 GUADELOUPE24♠♥5+3+14
+3.0Round 6🇯🇵 JAPAN214♠x♣A-1+0
+3.0Round 7🇧🇷 BRAZIL74♠♣8-2+8
+3.0Round 14🇦🇹 AUSTRIA243♥♣K=+0
+2.9Round 9🇵🇰 PAKISTAN95♣x♠2-1+0
+2.9Round 16🇭🇰 CHINA HONG KONG233NT♥5=+0
+2.9Round 19🇵🇱 POLAND102♠♦5=+6
+2.8Round 7🇧🇷 BRAZIL134♥♣10-1-1
+2.7Round 14🇦🇹 AUSTRIA314♠x♣A-1+0
+2.7Round 16🇭🇰 CHINA HONG KONG194♠♣4-2+7
+2.6Round 20🇨🇦 CANADA263NT♥10+1+0
+2.5Round 10🇸🇪 SWEDEN312NT♠9+1+1
+2.5Round 15🇬🇵 GUADELOUPE96♣♥A=-2
+2.4Round 6🇯🇵 JAPAN184♠♣K+2-13
+2.3Round 9🇵🇰 PAKISTAN141NT♣K+1+0
+2.1Round 2🇳🇿 NEW ZEALAND275♣♥A-1+10
+2.1Round 6🇯🇵 JAPAN274♦♠A+1+6
+2.1Round 15🇬🇵 GUADELOUPE143♠♦A+1+6
+2.1Round 20🇨🇦 CANADA276♥♣6=+0
+2.0Round 2🇳🇿 NEW ZEALAND204♥♣4=+0
+2.0Round 16🇭🇰 CHINA HONG KONG303NT♥5=+0
+1.9Round 2🇳🇿 NEW ZEALAND232♠♦6+1+0
+1.9Round 7🇧🇷 BRAZIL141NT♦7=+5
+1.8Round 6🇯🇵 JAPAN293♠♣K-1-1
+1.8Round 11🇮🇹 ITALY123♠♦Q-1+4
+1.7Round 1🇺🇸 USA283♥♣J-2+0
+1.7Round 11🇮🇹 ITALY33♠♦K=+0
+1.6Round 16🇭🇰 CHINA HONG KONG284♣♥K=-10
+1.6Round 18🇹🇷 TURKEY233NT♥10+3+13
+1.5Round 7🇧🇷 BRAZIL6Pass+3
+1.5Round 20🇨🇦 CANADA322♠♥A+1+0
+1.4Round 5🇪🇬 EGYPT72♠♦9+1+1
+1.4Round 18🇹🇷 TURKEY213NT♠Q=+3
+1.3Round 16🇭🇰 CHINA HONG KONG313NT♥3+1+0
+1.2Round 1🇺🇸 USA2104♥♠A+1+0
+1.2Round 5🇪🇬 EGYPT41NT♠5+1+0
+1.2Round 5🇪🇬 EGYPT93NT♥5+2-11
+1.2Round 9🇵🇰 PAKISTAN64♥♦A+1+0
+1.2Round 14🇦🇹 AUSTRIA184♥x♠Q-1-2
+1.2Round 20🇨🇦 CANADA211NT♠4=+5
+1.0Round 2🇳🇿 NEW ZEALAND193♠♥J-1+2
+1.0Round 5🇪🇬 EGYPT161NT♠7+1+0
+1.0Round 7🇧🇷 BRAZIL114♥♥10+2-11
+1.0Round 7🇧🇷 BRAZIL154♥x♦A-1+0
+1.0Round 10🇸🇪 SWEDEN261NT♦Q-2-2
+1.0Round 18🇹🇷 TURKEY284♠♠10+1+0
+0.8Round 15🇬🇵 GUADELOUPE163♣♥K-3+10
+0.7Round 11🇮🇹 ITALY163♣♠A-1+2
+0.7Round 16🇭🇰 CHINA HONG KONG291NT♣5=+0
+0.5Round 2🇳🇿 NEW ZEALAND254♥♣K+1+0
+0.5Round 7🇧🇷 BRAZIL41NT♣J=+1
+0.5Round 9🇵🇰 PAKISTAN117♥♥7=+0
+0.5Round 9🇵🇰 PAKISTAN162♠♣A+1+11
+0.5Round 11🇮🇹 ITALY103NT♣8+1+12
+0.5Round 18🇹🇷 TURKEY254♠♦J=+0
+0.4Round 5🇪🇬 EGYPT34♠♠8=+0
+0.4Round 6🇯🇵 JAPAN263NT♦Q+1+1
+0.4Round 11🇮🇹 ITALY63NT♣2-2+3
+0.3Round 5🇪🇬 EGYPT113NT♦10+1+0
+0.3Round 10🇸🇪 SWEDEN254♠♥2=+0
+0.2Round 7🇧🇷 BRAZIL13NT♠10+1-1
+0.2Round 19🇵🇱 POLAND41♠♦4+2+0
+0.1Round 1🇺🇸 USA2144♠♥10+1+0
+0.0Round 11🇮🇹 ITALY142NT♦J-2+1
-0.0Round 14🇦🇹 AUSTRIA303♠♥K=-7
+0.0Round 15🇬🇵 GUADELOUPE73NT♥5+1-1
+0.0Round 16🇭🇰 CHINA HONG KONG324♠♣6=-1
-0.1Round 5🇪🇬 EGYPT124♠♥Q+1-1
-0.1Round 6🇯🇵 JAPAN282♠♦7+1+0
-0.1Round 6🇯🇵 JAPAN313NT♦9=-2
-0.1Round 16🇭🇰 CHINA HONG KONG245♦♣K+1-11
-0.1Round 19🇵🇱 POLAND114♥♣Q=+0
-0.2Round 9🇵🇰 PAKISTAN124♥♥3=+1
-0.2Round 15🇬🇵 GUADELOUPE44♠♦4+1+0
-0.2Round 18🇹🇷 TURKEY204♥♠A+1+0
-0.3Round 9🇵🇰 PAKISTAN135♦♣Q+1-13
-0.3Round 11🇮🇹 ITALY83♣♣3=-5
-0.5Round 9🇵🇰 PAKISTAN33NT♦5=-2
-0.5Round 11🇮🇹 ITALY53NT♠4=+0
-0.6Round 10🇸🇪 SWEDEN326♥x♠K-3+17
-0.6Round 14🇦🇹 AUSTRIA222♠♥9-1+10
-0.7Round 2🇳🇿 NEW ZEALAND282♠♦9+1+0
-0.7Round 5🇪🇬 EGYPT133♦♠Q-1+9
-0.7Round 7🇧🇷 BRAZIL52♠♥Q+2+6
-0.7Round 18🇹🇷 TURKEY303NT♦Q+2-1
-0.7Round 20🇨🇦 CANADA282♥♠10=+0
-0.8Round 15🇬🇵 GUADELOUPE84♠♦5=+0
-0.9Round 6🇯🇵 JAPAN194♥♣K=-11
-0.9Round 10🇸🇪 SWEDEN292♥♦A-1-1
-0.9Round 14🇦🇹 AUSTRIA233NT♥K+2+13
-0.9Round 15🇬🇵 GUADELOUPE65♦♠K+2-14
-0.9Round 20🇨🇦 CANADA193♣♥3=-5
-1.0Round 5🇪🇬 EGYPT102♦♠4-1-5
-1.0Round 5🇪🇬 EGYPT151NT♦2=+0
-1.0Round 6🇯🇵 JAPAN254♥♥A-1-4
-1.0Round 9🇵🇰 PAKISTAN153NT♣8=-1
-1.0Round 11🇮🇹 ITALY45♠♦9=+0
-1.0Round 15🇬🇵 GUADELOUPE103♠♥5-1-6
-1.0Round 16🇭🇰 CHINA HONG KONG174♣♠A=+0
-1.1Round 2🇳🇿 NEW ZEALAND313NT♦J+1-1
-1.1Round 15🇬🇵 GUADELOUPE152♣♦A-1+1
-1.1Round 16🇭🇰 CHINA HONG KONG263NT♣4+1+0
-1.1Round 18🇹🇷 TURKEY183NT♦K+1+0
-1.1Round 19🇵🇱 POLAND56♠♥A+1+11
-1.2Round 1🇺🇸 USA242♠♣K-1+1
-1.2Round 2🇳🇿 NEW ZEALAND183NT♥10+3-13
-1.2Round 18🇹🇷 TURKEY264♥♣10-1+1
-1.3Round 2🇳🇿 NEW ZEALAND221NT♣J-1-4
-1.4Round 5🇪🇬 EGYPT11NT♣4-1+2
-1.4Round 6🇯🇵 JAPAN303NT♥10=-6
-1.4Round 7🇧🇷 BRAZIL82♥♠3+2-1
-1.4Round 19🇵🇱 POLAND143NT♠7+3-2
-1.4Round 19🇵🇱 POLAND16Pass-4
-1.5Round 14🇦🇹 AUSTRIA193NT♦5+2+0
-1.6Round 10🇸🇪 SWEDEN283♦♣3=-5
-1.6Round 11🇮🇹 ITALY74♠♥4+1-4
-1.7Round 6🇯🇵 JAPAN203♥♦K-1+0
-1.7Round 6🇯🇵 JAPAN322♠♠2+1-1
-1.7Round 18🇹🇷 TURKEY192♠♦K=-7
-1.7Round 19🇵🇱 POLAND25♣x♠4-2+0
-1.7Round 19🇵🇱 POLAND83♠♣J=-1
-1.8Round 20🇨🇦 CANADA201NT♦7-1+0
-1.9Round 16🇭🇰 CHINA HONG KONG216♣♠6+1-13
-1.9Round 16🇭🇰 CHINA HONG KONG274♥♣10+1+0
-2.0Round 10🇸🇪 SWEDEN212♠♦A+3-7
-2.0Round 16🇭🇰 CHINA HONG KONG252♠♠8+2+1
-2.0Round 19🇵🇱 POLAND126♦♥A-2+0
-2.2Round 14🇦🇹 AUSTRIA173♥x♣10-1+8
-2.2Round 14🇦🇹 AUSTRIA273NT♠8-3-7
-2.2Round 14🇦🇹 AUSTRIA293♥♠4=+0
-2.2Round 18🇹🇷 TURKEY222NT♣5=-7
-2.3Round 9🇵🇰 PAKISTAN102♠♥9+1+0
-2.3Round 18🇹🇷 TURKEY244♥♣A-1+4
-2.5Round 10🇸🇪 SWEDEN173♠♥K=+0
-2.5Round 10🇸🇪 SWEDEN234♠♥Q-3-10
-2.5Round 14🇦🇹 AUSTRIA282♥♦Q-2-3
-2.7Round 18🇹🇷 TURKEY312♥♦5-2-2
-2.8Round 11🇮🇹 ITALY23♦♠Q=-5
-2.8Round 16🇭🇰 CHINA HONG KONG184♠♣K-1-12
-3.0Round 2🇳🇿 NEW ZEALAND263NT♥J+3+13
-3.0Round 9🇵🇰 PAKISTAN44♥♦A-1-12
-3.1Round 18🇹🇷 TURKEY322♦♦10=-5
-3.2Round 9🇵🇰 PAKISTAN72♥♠A-2-3
-3.3Round 19🇵🇱 POLAND74♥♦7-1-12
-3.5Round 1🇺🇸 USA273♣♥A-2-3
-3.5Round 1🇺🇸 USA2114♠x♥2-1-5
-3.7Round 7🇧🇷 BRAZIL94♠♦Q=+1
-3.7Round 11🇮🇹 ITALY133NT♣3-1-12
-3.7Round 20🇨🇦 CANADA233NT♦J-1-12
-3.8Round 9🇵🇰 PAKISTAN84♥♠7=+0
-3.8Round 20🇨🇦 CANADA255♥♠K=-13
-3.9Round 5🇪🇬 EGYPT142♠♣7+2-6
-3.9Round 7🇧🇷 BRAZIL24♥♣5-2-8
-4.0Round 11🇮🇹 ITALY13NT♠J-2-5
-4.1Round 6🇯🇵 JAPAN243NT♥10=+0
-4.3Round 9🇵🇰 PAKISTAN22♠♣A=-9
-4.5Round 1🇺🇸 USA294♥♦8-1-5
-4.6Round 20🇨🇦 CANADA305♥♦Q+1-11
-4.8Round 1🇺🇸 USA2133♦♣3-3+7
-5.0Round 1🇺🇸 USA2125♦♣6+2-16
-5.0Round 20🇨🇦 CANADA184♥♦K-2-6
-5.2Round 1🇺🇸 USA234♥♥4-2-5
-5.4Round 2🇳🇿 NEW ZEALAND323NT♠K=+0
-5.5Round 5🇪🇬 EGYPT63♠♦J=-7
-6.1Round 20🇨🇦 CANADA174♠♦K-1-10
-6.1Round 20🇨🇦 CANADA224♠♠5=+0
-6.3Round 14🇦🇹 AUSTRIA204♥♣A=-10
-6.4Round 10🇸🇪 SWEDEN204♥♦Q=+1
-6.8Round 18🇹🇷 TURKEY175♣x♥A-2-5
-7.1Round 10🇸🇪 SWEDEN227♠♥K=+0
-7.2Round 9🇵🇰 PAKISTAN14♠x♣7=-5
-7.4Round 11🇮🇹 ITALY154♥♣J=-7
-7.5Round 15🇬🇵 GUADELOUPE54♣♦A+1-10
-7.7Round 16🇭🇰 CHINA HONG KONG203NT♥3+1-11
-7.8Round 1🇺🇸 USA214♠♥2-2-11
-8.1Round 14🇦🇹 AUSTRIA262♠♥A-2-8
-8.2Round 1🇺🇸 USA2164♠♥J-2-11
-8.2Round 6🇯🇵 JAPAN223NT♥9-1-10
-8.7Round 7🇧🇷 BRAZIL166♥♥A=+0
-8.8Round 5🇪🇬 EGYPT84♠♦A-1-8
-9.4Round 10🇸🇪 SWEDEN186♦♠4-1-17
-9.8Round 14🇦🇹 AUSTRIA213NT♥4-2-13
-10.3Round 20🇨🇦 CANADA245♣x♦10-3-12
-10.9Round 11🇮🇹 ITALY115♦x♥10-2-15
-11.0Round 20🇨🇦 CANADA312♠x♦10-4-5
-12.3Round 19🇵🇱 POLAND64♥x♠Q-4-12
-12.8Round 16🇭🇰 CHINA HONG KONG222♥x♦K+1-14
-13.4Round 19🇵🇱 POLAND16♥x♣3=+7
-13.5Round 9🇵🇰 PAKISTAN54♠x♥K-4-14