🇨🇦 CHEN Quan · CANADA

80rank
-33.8Butler · 112 bds
-0.30per board
±4.2swing
-0.61vs par /bd · #89/107
-0.26adjusted /bd
Butler per round: 9.9 7.1 9.8 -8.4 -31.6 -8.3 25.1 -16.8 -5.6 15.6 -27.5 11.4 1.5 -16by round

vs par split: bidding -0.27 · play -0.34

Strength of schedule: opponents averaged +0.04/bd (an average draw) → opponent-adjusted -0.26/bd

Card play — on target: opening leads 85.2% #31 of 107 · declarer play 50.0% #104 of 107 · defence 85.2% #56 of 107

Bidding activity — not a pass: 36.5% #101 of 107 (116/318)

Card play by contract type — on target
vs NTvs a suit
Opening leads75.0% (4)87.0% (23)
Declarer play50.0% (6)50.0% (18)
Defence76.9% (13)87.8% (41)

Opening leads by suit led: ♠ 80.0% (5) · ♥ 66.7% (6) · ♦ 88.9% (9) · ♣ 100.0% (7)

vs par by strain: NT -0.54 (28) · a suit -0.63 (84)

vs par by level: part-score -1.00 (45) · game +0.02 (59) · slam -3.00 (8)

By role: declaring -0.40/bd (-3.00 vs par · 58) · defending -0.20/bd (+1.96 vs par · 54)

By vulnerability: vulnerable +0.14/bd (-0.46 vs par · 56) · not vulnerable -0.74/bd (-0.75 vs par · 56)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 2C.HavensD.Molina – C.YanezClosed8+9.9+1.24+1.88
Round 3C.HavensM.Frei Malta Castro – H.Martins FortesOpen8+7.1+0.89-0.38
Round 4C.HavensT.Rodrigues – T.ChowdhuryOpen8+9.8+1.23-0.38
Round 6C.HavensM.Kedzierski – R.MadejClosed8-8.4-1.05-1.00
Round 8C.HavensS.Anoyrkatis – L.FegartyOpen8-31.6-3.95-2.12
Round 9C.HavensC.Duffie – J.FreemanOpen8-8.3-1.04-2.88
Round 11C.HavensX.Friesen – R.GoorClosed8+25.1+3.14+2.25
Round 12C.HavensM.Kurek Beaulieu – R.GuthClosed8-16.8-2.10-3.75
Round 13C.HavensC.Brusotti – F.PortaClosed8-5.6-0.70-2.38
Round 14C.HavensH.Luba – B.ZhuOpen8+15.6+1.95+2.75
Round 15C.HavensI.Papaspyrou – M.SoumplisOpen8-27.5-3.44-5.62
Round 17C.HeC.Mann – E.HanssonClosed8+11.4+1.43+2.38
Round 18O.LauferI.Baniri – T.LoonsteinClosed8+1.5+0.19+2.00
Round 19Z.ChengY.Poon – Y.YunClosed8-16.0-2.00-1.25

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
+9.7Round 14🇺🇸 USA1132♠♦7+3+10
+9.0Round 11🇳🇱 NETHERLANDS185♦x♥J=+4
+8.6Round 15🇬🇷 GREECE205♠x♦Q-3+5
+8.2Round 17🇸🇪 SWEDEN74♠x♣2=+12
+7.9Round 14🇺🇸 USA1164♠♥Q-2+13
+6.9Round 18🇮🇱 ISRAEL123NT♥4-1+12
+6.8Round 13🇮🇹 ITALY76NT♦8=+0
+6.5Round 12🇫🇷 FRANCE303NT♥3+2+1
+6.1Round 14🇺🇸 USA1153♦x♠T-3+8
+5.3Round 11🇳🇱 NETHERLANDS233NT♠Q=-1
+5.2Round 3🇧🇷 BRAZIL182♥♣Q+2+2
+5.1Round 11🇳🇱 NETHERLANDS245♣♠A-3+11
+4.6Round 2🇦🇷 ARGENTINA162♥♣6=+6
+4.4Round 3🇧🇷 BRAZIL192♠♦J-1+5
+4.0Round 9🇺🇸 USA253♣♥3-1+5
+3.6Round 4🇮🇳 INDIA272♠♦A-1+9
+3.5Round 4🇮🇳 INDIA326NT♥T+1-11
+3.4Round 11🇳🇱 NETHERLANDS213NT♣T-1+5
+3.1Round 6🇵🇱 POLAND134♥♦2=+1
+2.9Round 2🇦🇷 ARGENTINA145♥x♠K-1+0
+2.9Round 18🇮🇱 ISRAEL134♥♠6+1+0
+2.7Round 4🇮🇳 INDIA294♠♣2=-1
+2.7Round 17🇸🇪 SWEDEN43♥♣7-2+2
+2.6Round 2🇦🇷 ARGENTINA154♠♥7-1+10
+2.6Round 4🇮🇳 INDIA313NT♦Q-2+5
+2.5Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND262♥♦A=+6
+2.4Round 13🇮🇹 ITALY41NT♣A+3+2
+2.3Round 18🇮🇱 ISRAEL163NT♣3-1+5
+2.2Round 17🇸🇪 SWEDEN14♠♥Q+2+11
+1.8Round 11🇳🇱 NETHERLANDS224♠♦3+2+1
+1.8Round 15🇬🇷 GREECE231NT♠A+3-9
+1.7Round 17🇸🇪 SWEDEN64♥♠K=+0
+1.6Round 18🇮🇱 ISRAEL95♥♣T+1+11
+1.6Round 19🇭🇰 HONG KONG CHINA235♦♥A=-13
+1.5Round 11🇳🇱 NETHERLANDS193NT♥8=+0
+1.5Round 14🇺🇸 USA191NT♠4-1+5
+1.4Round 2🇦🇷 ARGENTINA124♥♠A-1+5
+1.4Round 2🇦🇷 ARGENTINA133♥♠Q-1+1
+1.4Round 3🇧🇷 BRAZIL223NT♥7=+0
+1.4Round 6🇵🇱 POLAND146♥♣A=+0
+1.3Round 6🇵🇱 POLAND94♠♠5-2+7
+1.1Round 4🇮🇳 INDIA252♠♥A+2-6
+1.0Round 14🇺🇸 USA1123NT♣5+1+1
+0.6Round 3🇧🇷 BRAZIL203NT♦5+1+1
+0.6Round 4🇮🇳 INDIA303♣x♠Q-1+0
+0.6Round 11🇳🇱 NETHERLANDS172♠♦K=-1
+0.4Round 9🇺🇸 USA263♥♥2=+7
+0.3Round 6🇵🇱 POLAND121NT♥6=-5
+0.2Round 13🇮🇹 ITALY22♥♣2-1-2
+0.1Round 12🇫🇷 FRANCE264♠♣K=+0
+0.1Round 13🇮🇹 ITALY83NT♥2+2+0
-0.1Round 3🇧🇷 BRAZIL173♥♣8=+0
-0.1Round 4🇮🇳 INDIA261NT♦8+3-10
-0.3Round 17🇸🇪 SWEDEN82NT♣T=+0
-0.4Round 12🇫🇷 FRANCE323NT♠4+1-1
-0.4Round 17🇸🇪 SWEDEN31NT♠T-1-4
-0.5Round 2🇦🇷 ARGENTINA113♦♣Q=-7
-0.5Round 3🇧🇷 BRAZIL212NT♥Q=+0
-0.5Round 13🇮🇹 ITALY65♦♣Q-2-5
-0.5Round 17🇸🇪 SWEDEN21♥x♦J-1-2
-0.6Round 19🇭🇰 HONG KONG CHINA222♥♥Q-3+0
-0.7Round 2🇦🇷 ARGENTINA94♠♦6=+0
-0.8Round 14🇺🇸 USA1145♥♦K=+0
-0.8Round 19🇭🇰 HONG KONG CHINA174♠♠A=-1
-0.9Round 13🇮🇹 ITALY32♠♥K=+5
-0.9Round 19🇭🇰 HONG KONG CHINA244♦♥Q=+0
-1.1Round 6🇵🇱 POLAND112♥♦2=+0
-1.2Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND303NT♥Q+1-1
-1.2Round 15🇬🇷 GREECE214♥♦3+1-1
-1.3Round 9🇺🇸 USA223♣♥9+1+0
-1.3Round 18🇮🇱 ISRAEL114♠♦5+1+0
-1.3Round 18🇮🇱 ISRAEL153NT♦6=+2
-1.4Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND294♠♦3+2-1
-1.6Round 3🇧🇷 BRAZIL244♠♥2-1-5
-1.6Round 6🇵🇱 POLAND162♦♣2+2-1
-1.6Round 9🇺🇸 USA244♥♦J-2-8
-1.6Round 11🇳🇱 NETHERLANDS201NT♥4+2-1
-1.7Round 12🇫🇷 FRANCE252♠♥A=-7
-1.7Round 19🇭🇰 HONG KONG CHINA185♦♠K-1-2
-1.7Round 19🇭🇰 HONG KONG CHINA204♠♦5=+1
-1.8Round 2🇦🇷 ARGENTINA102♠♦K-1+0
-1.9Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND314♠♦6=+0
-1.9Round 9🇺🇸 USA283♠♠6-1-5
-2.1Round 9🇺🇸 USA214♠♥4-1-10
-2.1Round 9🇺🇸 USA272♠♥Q+1-6
-2.1Round 15🇬🇷 GREECE223NT♠4+3-1
-2.2Round 17🇸🇪 SWEDEN54NT♣K+1+0
-2.3Round 3🇧🇷 BRAZIL235♣♥A-4-6
-2.4Round 18🇮🇱 ISRAEL143♣♠5-1+2
-3.0Round 14🇺🇸 USA1114♠♦5=-3
-3.2Round 12🇫🇷 FRANCE292♠♣K-1-5
-3.5Round 13🇮🇹 ITALY53♣♦K=-5
-3.6Round 6🇵🇱 POLAND154♠♥6=+0
-3.7Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND274♠♥5-1-10
-3.7Round 9🇺🇸 USA233♥♦Q-2-6
-3.8Round 19🇭🇰 HONG KONG CHINA214♠♣3-2-7
-4.2Round 4🇮🇳 INDIA286♣♠Q+1+11
-4.3Round 12🇫🇷 FRANCE283♣x♥K-2-8
-4.6Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND254♥♦3=-3
-5.5Round 12🇫🇷 FRANCE274♠♣K-1-10
-6.8Round 14🇺🇸 USA1102♠♦K=-12
-7.1Round 15🇬🇷 GREECE182♣x♥K-1-8
-7.2Round 18🇮🇱 ISRAEL106♠♠5-1-16
-8.1Round 19🇭🇰 HONG KONG CHINA194♥♣K+1+12
-8.2Round 6🇵🇱 POLAND103♣♥A+2-10
-8.2Round 15🇬🇷 GREECE173NT♠4-1-10
-8.3Round 12🇫🇷 FRANCE316♠♦2=+0
-8.6Round 15🇬🇷 GREECE244♥♠8-1-10
-10.2Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND286♠♠2=+0
-10.2Round 13🇮🇹 ITALY14♥♠7-1-14
-10.7Round 15🇬🇷 GREECE194♠♥5-1-11
-11.1Round 8🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND326♥♠K=-8