KOWALCZEWSKI Tadeusz · SPIDER TEAM

209rank
-24.8Butler · 110 bds
-0.23per board
±4.9swing
-0.45vs par /bd · #239/311
-0.08adjusted /bd
Butler per round: 20.7 -6.7 13 -9.3 5.1 -2.3 3.1 10.5 -14.1 -11.2 -33.6by round

vs par split: bidding -0.64 · play +0.18

Strength of schedule: opponents averaged +0.14/bd (a tough draw) → opponent-adjusted -0.08/bd

Card play — on target: opening leads 76.9% #192 of 310 · declarer play 78.6% #108 of 311 · defence 84.6% #222 of 311

Card play by contract type — on target
vs NTvs a suit
Opening leads71.4% (7)78.9% (19)
Declarer play77.8% (9)78.9% (19)
Defence60.0% (15)94.6% (37)

Opening leads by suit led: ♠ 87.5% (8) · ♥ 62.5% (8) · ♦ 75.0% (4) · ♣ 83.3% (6)

vs par by strain: NT -1.76 (34) · a suit +0.13 (76)

vs par by level: part-score -0.65 (37) · game -0.38 (63) · slam -0.20 (10)

By role: declaring -0.22/bd (-2.29 vs par · 58) · defending -0.24/bd (+1.60 vs par · 52)

By vulnerability: vulnerable +0.12/bd (-0.06 vs par · 51) · not vulnerable -0.53/bd (-0.80 vs par · 59)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1M.DobrzynskiG.Venkatesh – A.PadhyeOpen10+20.7+2.07+1.40
Round 2M.DobrzynskiG.Narkiewicz – K.BurasClosed10-6.7-0.67+0.00
Round 3M.DobrzynskiZ.Grossack – S.RubensteinClosed10+13.0+1.30+1.60
Round 4M.DobrzynskiA.Gulevich – A.GromovClosed10-9.3-0.93+1.20
Round 5M.DobrzynskiP.Wiankowski – P.NawrockiOpen10+5.1+0.51+0.70
Round 6M.DobrzynskiA.Gandoglia – L.CimaClosed10-2.3-0.23+0.50
Round 8M.DobrzynskiP.Crouch – A.HydesOpen10+3.1+0.31+0.40
Round 9M.DobrzynskiA.Madala – D.BildeOpen10+10.5+1.05-1.30
Round 11M.DobrzynskiE.Klems – M.KopeckyClosed10-14.1-1.41-4.20
Round 12M.DobrzynskiM.Bessis – B.CabanesOpen10-11.2-1.12-2.10
Round 14M.DobrzynskiR.Rohowsky – P.GruenkeOpen10-33.6-3.36-3.20

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 9LAVAZZA266♥♣2-2+13
+11.8Round 2BERNAL195♥x♦A=+15
+10.6Round 14AMALIA124♥x♣3=+13
+10.3Round 1TEXAN ACES36♠♦7-1+11
+9.5Round 2BERNAL183NT♣7+1+11
+7.5Round 2BERNAL162♣x♣10-4+5
+6.2Round 1TEXAN ACES73NT♦7=+0
+6.1Round 4SPIDER TEAM36♦♣6-1+16
+5.8Round 3RUBENSTEIN295♣x♦K-1+8
+5.7Round 3RUBENSTEIN276♠♣4-2+11
+5.5Round 3RUBENSTEIN263♣♥J-1-1
+5.5Round 5MARTENS122♣♣8=+12
+5.4Round 12ZIMM FRIENDS264♥♣7-1+13
+5.3Round 8GILLIS134♥♠8=+0
+5.2Round 8GILLIS114♠x♥6=+5
+5.1Round 1TEXAN ACES82♠♦10=+11
+4.9Round 6ALPHAVISION283NT♣3=+7
+4.7Round 3RUBENSTEIN286♥♦A=+0
+4.3Round 3RUBENSTEIN302♣x♥K-2-3
+3.9Round 6ALPHAVISION293♠♦K-1+5
+3.5Round 14AMALIA194♠x♦7-1+7
+3.4Round 8GILLIS194♠♠J-1+10
+3.3Round 3RUBENSTEIN233♥♠A-2+3
+3.2Round 6ALPHAVISION275♦♥K+1+11
+3.1Round 9LAVAZZA226♠♠3=+0
+3.1Round 9LAVAZZA244♠♦9+1-11
+2.4Round 1TEXAN ACES12♠♥A+2+6
+2.4Round 12ZIMM FRIENDS252♠♣10=+5
+2.3Round 5MARTENS172♥♥2+1+1
+2.1Round 8GILLIS183♥♠K=+0
+2.0Round 1TEXAN ACES64♠♦A+1+0
+1.8Round 1TEXAN ACES23NT♠3=+6
+1.8Round 2BERNAL174♥♠2+1+0
+1.7Round 5MARTENS202♠♦8+1+0
+1.6Round 4SPIDER TEAM83NT♣10-1+5
+1.5Round 5MARTENS164♠x♣A-3-12
+1.4Round 9LAVAZZA305♣x♦3-2+0
+1.4Round 11CZECH REPUBLIC164♠♣A-1+5
+1.4Round 11CZECH REPUBLIC171NT♠Q-1-2
+1.3Round 1TEXAN ACES53♥♦9=+0
+1.1Round 8GILLIS201NT♦6+1+5
+1.1Round 9LAVAZZA233♥♠7=-10
+1.0Round 6ALPHAVISION304♠♦K+1+0
+1.0Round 11CZECH REPUBLIC181NT♦10=-2
+0.9Round 8GILLIS173NT♥Q+2+0
+0.8Round 4SPIDER TEAM63♦♥K-2+0
+0.7Round 4SPIDER TEAM23NT♦4-2+5
+0.7Round 5MARTENS112♥x♥3-2+3
+0.6Round 6ALPHAVISION243NT♠6=+1
+0.6Round 12ZIMM FRIENDS213NT♠4=+0
+0.4Round 11CZECH REPUBLIC202♣♦2-3-5
+0.4Round 12ZIMM FRIENDS244♠♣3+1+1
+0.3Round 11CZECH REPUBLIC154♠♦K+1+0
+0.3Round 12ZIMM FRIENDS283NT♥J+1-10
-0.0Round 3RUBENSTEIN242♠♠7=+0
-0.1Round 3RUBENSTEIN223NT♦J+2+11
-0.1Round 4SPIDER TEAM74♠♣K+1+0
-0.1Round 11CZECH REPUBLIC143♦♠A=+0
-0.2Round 4SPIDER TEAM54NT♠6+2+11
-0.4Round 1TEXAN ACES93NT♥2+2-1
-0.5Round 8GILLIS164♥♣9=+1
-0.6Round 2BERNAL151NT♥2=-1
-0.6Round 9LAVAZZA254♥♥3+1+0
-0.9Round 5MARTENS132♠♣K+1+0
-0.9Round 5MARTENS144♠♦5=+1
-1.1Round 5MARTENS153NT♥4+1-11
-1.1Round 5MARTENS184♠♥A+2+12
-1.2Round 14AMALIA161NT♣3+2-1
-1.4Round 9LAVAZZA275♥x♠A-2+0
-1.5Round 6ALPHAVISION231NT♦4-1-5
-1.5Round 9LAVAZZA295♣♥3=+0
-1.8Round 11CZECH REPUBLIC114♠♥3+2-11
-2.0Round 1TEXAN ACES42♠♣K=-6
-2.1Round 6ALPHAVISION212♠♦J+1-1
-2.4Round 2BERNAL204♥♠10=+1
-2.4Round 6ALPHAVISION262♥♠7-1+0
-2.4Round 9LAVAZZA213NT♦5-1-5
-2.5Round 12ZIMM FRIENDS294♠♦A=+0
-2.5Round 14AMALIA131NT♥Q=+0
-2.6Round 5MARTENS193NT♥3=+1
-2.8Round 4SPIDER TEAM103NT♠A-1-6
-2.8Round 12ZIMM FRIENDS274♥♣A=+1
-2.9Round 4SPIDER TEAM92♠♣10-1-1
-3.1Round 3RUBENSTEIN253♥♥7=+0
-3.1Round 11CZECH REPUBLIC125♣♥A+1-11
-3.2Round 14AMALIA153NT♠Q-1-5
-3.4Round 8GILLIS143NT♣2-1-10
-3.7Round 14AMALIA184♥♥2-1-5
-4.0Round 6ALPHAVISION223NT♠2+1+0
-4.0Round 8GILLIS155♦♥2-1-10
-4.2Round 12ZIMM FRIENDS304♠♥9=-7
-4.6Round 9LAVAZZA283NT♣3+1+0
-5.1Round 12ZIMM FRIENDS233♠♥2+1-10
-5.7Round 12ZIMM FRIENDS223NT♠3-3-14
-5.9Round 6ALPHAVISION256NT♥10+1-13
-6.0Round 1TEXAN ACES105♣♥Q-1-13
-6.0Round 2BERNAL135♦♠7=+1
-6.0Round 4SPIDER TEAM13NT♠J+3-8
-6.1Round 2BERNAL144♠♣10=-11
-6.2Round 11CZECH REPUBLIC194♣♠A-1-6
-6.3Round 14AMALIA116♥♣10-3-11
-6.5Round 4SPIDER TEAM42♠♥3+2-10
-7.0Round 8GILLIS124♥x♦K-3+3
-7.4Round 11CZECH REPUBLIC134♥♠Q=-10
-8.0Round 14AMALIA173♠x♠2+2-7
-8.8Round 2BERNAL112NTx♣A-3-9
-9.5Round 14AMALIA143NT♥6+1-7
-13.1Round 3RUBENSTEIN216NT♣7=-13
-13.3Round 14AMALIA206♠x♦J-3-16
-13.4Round 2BERNAL124♠x♣9+2-12