CHEN Yanqing · CHINA

34rank
+34.3Butler · 112 bds
+0.31per board
±4.9swing
+1.02vs par /bd · #5/128
+0.37adjusted /bd
Butler per round: 15.8 -12.9 18.8 -27 29 15.7 -2.8 -2.3by round

vs par split: bidding +0.95 · play +0.07

Strength of schedule: opponents averaged +0.07/bd (a tough draw) → opponent-adjusted +0.37/bd

Card play — on target: opening leads 85.2% #16 of 128 · declarer play 77.4% #40 of 128 · defence 87.3% #56 of 128

Bidding activity — not a pass: 44.4% #49 of 128 (131/295)

Card play by contract type — on target
vs NTvs a suit
Opening leads90.0% (10)82.4% (17)
Declarer play75.0% (8)78.3% (23)
Defence75.0% (20)93.0% (43)

Opening leads by suit led: ♠ 87.5% (8) · ♥ 83.3% (6) · ♦ 66.7% (3) · ♣ 90.0% (10)

vs par by strain: NT -0.12 (33) · a suit +1.49 (79)

vs par by level: part-score -0.10 (38) · game +1.32 (68) · slam +4.67 (6)

By role: declaring -0.23/bd (-2.67 vs par · 49) · defending +0.73/bd (+3.89 vs par · 63)

By vulnerability: vulnerable -0.02/bd (+0.54 vs par · 56) · not vulnerable +0.63/bd (+1.50 vs par · 56)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1J.WenH.Erichsen – F.BrownClosed14+15.8+1.13+1.21
Round 3J.WenJ.Zmuda – K.DufratOpen14-12.9-0.92-1.43
Round 4J.WenN.Beninger – M.WhiteOpen14+18.8+1.34+0.64
Round 5J.WenW.Gong – S.ShiOpen14-27.0-1.93-0.36
Round 8J.WenA.Mirkovic – R.SivertsvikClosed14+29.0+2.07+3.21
Round 9J.WenT.Tang – P.LingOpen14+15.7+1.12+3.50
Round 11J.WenJ.Smederevac – S.BrockOpen14-2.8-0.20-1.00
Round 12J.WenI.Ozbay – D.YavasClosed14-2.3-0.16+2.36

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
+11.4Round 4MEXICO LINDO186♠♥K=+1
+11.2Round 12HUANG276♥♣8-1+14
+10.6Round 4MEXICO LINDO273NT♠J-2+11
+10.3Round 1SWIMMING DRAGONS44♠♥2+3+17
+9.9Round 9HONG KONG LADIES144♠♥3+2+14
+9.5Round 11ACE43NT♥J-3+17
+9.3Round 3BAKER65♠x♦K-1+11
+8.5Round 8NORDIC FOURS245♠♣A-1+11
+7.0Round 11ACE83♣♥2+1+7
+6.8Round 5YUNNAN84♥♣2=+7
+6.3Round 1SWIMMING DRAGONS34♥♠5-1+6
+6.0Round 9HONG KONG LADIES114♥♦Q-1+10
+5.9Round 8NORDIC FOURS275♣♣3-1+8
+5.6Round 12HUANG204♠x♦5-1+2
+5.5Round 8NORDIC FOURS262♦♣3+4+10
+5.3Round 9HONG KONG LADIES123NT♥J=+5
+5.2Round 1SWIMMING DRAGONS93♠♠3-1+10
+5.2Round 1SWIMMING DRAGONS133♦♠T+1+0
+4.8Round 4MEXICO LINDO285♥♠A-3+4
+4.7Round 11ACE24♠♣Q+1+1
+4.5Round 9HONG KONG LADIES84♥♦9=+3
+4.4Round 12HUANG153NT♣2-2+11
+4.3Round 4MEXICO LINDO213♣♣K-3+6
+4.0Round 8NORDIC FOURS224♠♥6=+0
+4.0Round 11ACE103NT♣6+2+1
+3.9Round 9HONG KONG LADIES54♠♠J-2+13
+3.8Round 12HUANG224♥x♦J=+9
+3.7Round 8NORDIC FOURS215♥x♣T-2+5
+3.5Round 5YUNNAN123NT♠J-1+10
+3.4Round 1SWIMMING DRAGONS53NT♠3-1+5
+3.1Round 4MEXICO LINDO252♠♠5+2+1
+2.9Round 4MEXICO LINDO222♠♣3+1+2
+2.9Round 8NORDIC FOURS252♥♦8-1+4
+2.7Round 12HUANG285♦♠A+1+14
+2.6Round 8NORDIC FOURS182NT♣T=+0
+2.5Round 1SWIMMING DRAGONS23♠♣2-3-11
+2.2Round 8NORDIC FOURS232♠♣J+2-1
+2.2Round 11ACE32♥♣K+2+2
+2.1Round 4MEXICO LINDO193♦♣9=+10
+1.9Round 1SWIMMING DRAGONS13NT♠5-2+5
+1.9Round 3BAKER53NT♠6=-1
+1.8Round 3BAKER101NT♠K-2-9
+1.5Round 1SWIMMING DRAGONS143♠♦5-1+4
+1.4Round 1SWIMMING DRAGONS102♥♦J+3-9
+1.4Round 5YUNNAN101NT♥6=+5
+1.3Round 3BAKER123♦♣6-2+5
+1.2Round 3BAKER144♥♦A=+3
+0.9Round 8NORDIC FOURS152♠♠9=+0
+0.9Round 12HUANG252♠♣8=-1
+0.8Round 11ACE63NT♣T+1+0
+0.8Round 12HUANG214♠♥J=-1
+0.5Round 5YUNNAN95♣♥A-2+2
+0.5Round 9HONG KONG LADIES33♦♠J=+0
+0.4Round 12HUANG163NT♥2+1+1
+0.3Round 5YUNNAN34♥♠Q+1+0
+0.3Round 5YUNNAN74NT♥4+2+13
+0.3Round 9HONG KONG LADIES104♥♣A=+0
+0.2Round 8NORDIC FOURS164♥♣K+2+11
-0.1Round 9HONG KONG LADIES133♥♣5-2+8
-0.2Round 9HONG KONG LADIES24♠♣Q=+11
-0.2Round 12HUANG243♣♠9+1+0
-0.4Round 3BAKER84♥♣K-2+0
-0.5Round 1SWIMMING DRAGONS114♠♦5=+1
-0.5Round 3BAKER93NT♠3-2+8
-0.7Round 3BAKER34♥♦K+1-11
-0.7Round 3BAKER116♣♣3+1+11
-0.7Round 8NORDIC FOURS175♠♣6=+8
-0.9Round 4MEXICO LINDO244♠♣6-1-10
-0.9Round 11ACE93♦♣6+2-8
-1.1Round 4MEXICO LINDO202NT♣Q=+0
-1.2Round 8NORDIC FOURS193♦♥J+1+0
-1.3Round 5YUNNAN142♦x♠K-2-3
-1.3Round 11ACE15♦x♠K-1+0
-1.4Round 3BAKER71NT♠3+2-2
-1.4Round 5YUNNAN53NT♠3-1-5
-1.4Round 5YUNNAN133♥♥J-1-1
-1.6Round 9HONG KONG LADIES93♦♦7+2+7
-1.9Round 9HONG KONG LADIES75♥x♣5-2+0
-1.9Round 11ACE125♣♣7=-14
-1.9Round 12HUANG174♠♥Q=-11
-2.0Round 4MEXICO LINDO175♣♥A=+2
-2.0Round 8NORDIC FOURS286♠♥A+1-11
-2.5Round 11ACE133♠♠6=+0
-2.7Round 4MEXICO LINDO233NT♥T-1-12
-2.7Round 11ACE113♦♦6=+0
-2.9Round 1SWIMMING DRAGONS124♥♦2=+0
-3.0Round 1SWIMMING DRAGONS83♠♥K=+0
-3.0Round 3BAKER133♥♠K-1-5
-3.3Round 4MEXICO LINDO153NT♥6+1+0
-3.3Round 9HONG KONG LADIES13♦♠9-1-10
-3.5Round 5YUNNAN23NT♣A+2-2
-3.5Round 8NORDIC FOURS203NT♣T+2+0
-3.7Round 9HONG KONG LADIES43NT♥J=+0
-3.9Round 9HONG KONG LADIES64♦♠T-1-12
-4.2Round 12HUANG263♥♠3-2-7
-4.7Round 3BAKER24♠♦2-2-12
-4.7Round 11ACE73NT♠T-1-6
-4.8Round 4MEXICO LINDO161NT♣6+4-6
-5.2Round 11ACE145♦x♣K-2+0
-5.6Round 4MEXICO LINDO263NT♥T=+0
-5.8Round 1SWIMMING DRAGONS63NT♠J=-11
-7.0Round 5YUNNAN43NT♦6+1+0
-7.3Round 5YUNNAN113NT♥3-1-10
-7.4Round 12HUANG186♥♥2=+0
-8.3Round 3BAKER44♠x♥A-2-8
-8.3Round 5YUNNAN63NT♣Q-1-11
-8.7Round 3BAKER13NT♣Q-1-10
-8.7Round 12HUANG233NT♥3+1-11
-9.6Round 5YUNNAN14♠♣3-1-10
-9.7Round 1SWIMMING DRAGONS74♠♥2=+0
-9.7Round 12HUANG196♠♠2+1+13
-11.8Round 11ACE54♠x♥6=-14