🇵🇱 MAZURKIEWICZ Marcin · POLAND

30rank
+56.6Butler · 176 bds
+0.32per board
±4.7swing
+0.20vs par /bd · #41/101
+0.34adjusted /bd
Butler per round: 15.9 18.5 15.2 1.5 6.7 11.7 -29.4 -13.6 -3.3 24.3 9.1by round

vs par split: bidding +0.41 · play -0.18

Strength of schedule: opponents averaged +0.02/bd (an average draw) → opponent-adjusted +0.34/bd

Card play — on target: opening leads 78.6% #60 of 101 · declarer play 66.0% #87 of 101 · defence 84.3% #78 of 101

Card play by contract type — on target
vs NTvs a suit
Opening leads64.7% (17)84.6% (39)
Declarer play87.5% (8)62.2% (45)
Defence78.3% (23)86.7% (60)

Opening leads by suit led: ♠ 65.0% (20) · ♥ 90.9% (11) · ♦ 69.2% (13) · ♣ 100.0% (12)

vs par by strain: NT +0.56 (34) · a suit +0.14 (141)

vs par by level: part-score -0.64 (64) · game +0.77 (99) · slam +0.33 (12)

By role: declaring +0.32/bd (-1.81 vs par · 93) · defending +0.32/bd (+2.46 vs par · 83)

By vulnerability: vulnerable -0.27/bd (-0.56 vs par · 88) · not vulnerable +0.92/bd (+0.97 vs par · 88)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1K.JassemM.Jellouli – M.LakhdharClosed16+15.9+0.99+1.44
Round 3K.JassemU.Jansons – M.RomanovskaClosed16+18.5+1.16+0.62
Round 4K.JassemT.Forrester – A.RobsonOpen16+15.2+0.95+0.69
Round 6K.JassemL.Eide – K.EllingsenOpen16+1.5+0.09-1.31
Round 7K.JassemE.Muzzio – H.CamberosClosed16+6.7+0.42+0.81
Round 9K.JassemT.Hachem – C.MaamarbachiClosed16+11.7+0.73+1.06
Round 10K.JassemO.Kizilok – D.UzumOpen16-29.4-1.84-2.00
Round 12K.JassemF.Masic – M.MilovicOpen16-13.6-0.85+1.31
Round 13K.JassemN.Al-Turki – N.AlhussainiClosed16-3.3-0.21-3.31
Round 14K.JassemM.Ahmed – N.ButtOpen16+24.3+1.52+2.00
Round 16K.JassemH.Kaku – M.TakayamaOpen16+9.1+0.57+0.94

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
+13.2Round 16🇯🇵 JAPAN305♥♠8=+13
+13.1Round 12BOSNIA HERZEGOVINA233NTx♥5-3+14
+12.2Round 14🇵🇰 PAKISTAN225♠x♦7-2+12
+12.1Round 1🇹🇳 TUNISIA94♠x♣6-4+12
+10.1Round 6🇳🇴 NORWAY264♥♠Q=+0
+8.9Round 3🇱🇻 LATVIA154♠♠J-2+11
+8.6Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND174♥♠K=+8
+8.6Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND226♠x♣2-4+0
+8.1Round 14🇵🇰 PAKISTAN173NT♣Q-1+10
+8.0Round 13🇰🇼 KUWAIT86♠x♥A-4+7
+7.6Round 6🇳🇴 NORWAY223NT♠Q=+0
+7.5Round 12BOSNIA HERZEGOVINA194♠x♥A-1+9
+7.0Round 16🇯🇵 JAPAN284♠♥J+1+7
+6.8Round 12BOSNIA HERZEGOVINA184♥♠6-1+11
+6.5Round 1🇹🇳 TUNISIA53NT♠5-2+8
+6.5Round 9🇱🇧 LEBANON34♥x♦9-2+5
+6.2Round 3🇱🇻 LATVIA123NT♠J+1+0
+6.2Round 14🇵🇰 PAKISTAN254♠♣7-2+7
+5.9Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND274♠♥A-1+6
+5.9Round 9🇱🇧 LEBANON95♦♥A-3+6
+5.6Round 9🇱🇧 LEBANON123♣♣2+1+10
+5.6Round 13🇰🇼 KUWAIT63♠♥K-1+11
+5.5Round 6🇳🇴 NORWAY195♦♠K+1+11
+5.5Round 7🇦🇷 ARGENTINA136♦♠9+1+13
+5.3Round 1🇹🇳 TUNISIA142♥♠7+2+6
+5.3Round 16🇯🇵 JAPAN182♠♥2=+0
+5.0Round 9🇱🇧 LEBANON152♥♣3-2+7
+4.9Round 3🇱🇻 LATVIA145♣♠3-1+8
+4.6Round 3🇱🇻 LATVIA101♠♦10=+5
+4.5Round 7🇦🇷 ARGENTINA114♥♠Q+2+11
+4.5Round 10🇹🇷 TURKEY175♣x♥A=+4
+4.4Round 6🇳🇴 NORWAY203♠♦A=+7
+4.4Round 13🇰🇼 KUWAIT24♠♣J+1+0
+4.3Round 16🇯🇵 JAPAN215♦♣7-2+8
+4.0Round 14🇵🇰 PAKISTAN276♦♥A=+0
+3.9Round 9🇱🇧 LEBANON65♣♠5+1+11
+3.7Round 10🇹🇷 TURKEY323NT♠5-1+5
+3.6Round 7🇦🇷 ARGENTINA23♣♥Q-2+7
+3.4Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND242♥♣2+1+0
+3.4Round 9🇱🇧 LEBANON116♦♥A=+0
+3.2Round 7🇦🇷 ARGENTINA84♠x♦7-1+5
+3.1Round 3🇱🇻 LATVIA22♥♣3+1+0
+3.1Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND315♣x♦K-3+4
+3.1Round 6🇳🇴 NORWAY212♣♠Q=+5
+2.9Round 1🇹🇳 TUNISIA162NT♠3-1-2
+2.9Round 3🇱🇻 LATVIA33♦♣4-3+0
+2.8Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND324♠♦3+1+0
+2.6Round 7🇦🇷 ARGENTINA64♥♣7=+0
+2.5Round 14🇵🇰 PAKISTAN202♥♠Q=+10
+2.5Round 14🇵🇰 PAKISTAN325♦x♣2-3+4
+2.4Round 1🇹🇳 TUNISIA64♠♦2+1+0
+2.4Round 16🇯🇵 JAPAN191NT♠8=+0
+2.3Round 12BOSNIA HERZEGOVINA274♥♦2+2+2
+2.3Round 12BOSNIA HERZEGOVINA314♥♠7-3+7
+2.1Round 13🇰🇼 KUWAIT93♥♠A+1+2
+2.0Round 9🇱🇧 LEBANON82♠♥Q+1+0
+1.9Round 1🇹🇳 TUNISIA82♠♣10-3+1
+1.9Round 1🇹🇳 TUNISIA111NT♠3=+7
+1.9Round 14🇵🇰 PAKISTAN193NT♠K-1-5
+1.8Round 7🇦🇷 ARGENTINA143♠♥A=+0
+1.6Round 3🇱🇻 LATVIA42♥♠J+1+0
+1.6Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND205♦x♥3-2+0
+1.6Round 7🇦🇷 ARGENTINA13NT♦A+1+0
+1.6Round 13🇰🇼 KUWAIT134♠♠J+2-12
+1.6Round 14🇵🇰 PAKISTAN282♠♣K+1+7
+1.6Round 16🇯🇵 JAPAN312NT♦6+2+1
+1.5Round 7🇦🇷 ARGENTINA167NT♠7=+0
+1.5Round 14🇵🇰 PAKISTAN314♠♦K=+8
+1.4Round 13🇰🇼 KUWAIT154♠♦2+2-13
+1.3Round 1🇹🇳 TUNISIA23♠x♥10-3+4
+1.3Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND234♠♥2=+3
+1.2Round 9🇱🇧 LEBANON14♠♠7=+0
+1.2Round 9🇱🇧 LEBANON54♠♣10=+0
+1.2Round 16🇯🇵 JAPAN233♣♠K+1+0
+1.2Round 16🇯🇵 JAPAN242♥♦4-1+9
+0.9Round 3🇱🇻 LATVIA12♠♦7+1+1
+0.9Round 3🇱🇻 LATVIA63NT♠4=+0
+0.8Round 3🇱🇻 LATVIA166♥♠5=+0
+0.8Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND283NT♦2=+2
+0.8Round 13🇰🇼 KUWAIT74♠♥2+1+0
+0.6Round 6🇳🇴 NORWAY323NT♠10+4+2
+0.6Round 7🇦🇷 ARGENTINA56♠♣5=+0
+0.6Round 16🇯🇵 JAPAN292♣♠7+1+0
+0.5Round 3🇱🇻 LATVIA112♥♣9-1-2
+0.5Round 10🇹🇷 TURKEY194♠♥Q+2-13
+0.5Round 10🇹🇷 TURKEY253NT♠Q=+0
+0.4Round 1🇹🇳 TUNISIA134♥♣6-3+7
+0.4Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND214♥♠Q=+0
+0.4Round 10🇹🇷 TURKEY314♦♥A+1-6
+0.2Round 9🇱🇧 LEBANON73NT♠5=+1
+0.2Round 12BOSNIA HERZEGOVINA252♣♦Q+1+0
-0.1Round 6🇳🇴 NORWAY304♥♣2+1+0
-0.1Round 9🇱🇧 LEBANON146♠♦A=+11
-0.1Round 12BOSNIA HERZEGOVINA241NT♦2+1+0
-0.2Round 6🇳🇴 NORWAY283♦♦5=+1
-0.2Round 7🇦🇷 ARGENTINA104♠♥5=-1
-0.3Round 12BOSNIA HERZEGOVINA283♦♥K=+0
-0.4Round 14🇵🇰 PAKISTAN29Pass-3
-0.6Round 1🇹🇳 TUNISIA14♥♦7+2+11
-0.6Round 7🇦🇷 ARGENTINA72♥♠9=+1
-0.6Round 10🇹🇷 TURKEY303♣♠Q=+1
-0.6Round 13🇰🇼 KUWAIT14♠♥J+1-14
-0.6Round 13🇰🇼 KUWAIT114♠♣J+2-1
-0.7Round 1🇹🇳 TUNISIA154♥♣Q-2-5
-0.7Round 14🇵🇰 PAKISTAN234♥♦2+1+0
-0.8Round 10🇹🇷 TURKEY203NT♠6+2+0
-0.9Round 6🇳🇴 NORWAY173♥♣3=-6
-0.9Round 14🇵🇰 PAKISTAN184♠♦A=+0
-0.9Round 16🇯🇵 JAPAN253NT♦3+1+0
-1.0Round 10🇹🇷 TURKEY293♠♦2-2-12
-1.0Round 13🇰🇼 KUWAIT34♦♣K=-1
-1.1Round 1🇹🇳 TUNISIA123NT♥7+3-1
-1.1Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND264♠♠4+2-1
-1.1Round 10🇹🇷 TURKEY283♥♣A-1+2
-1.2Round 9🇱🇧 LEBANON162♦♥A=+1
-1.4Round 3🇱🇻 LATVIA54♠♥10=-8
-1.5Round 16🇯🇵 JAPAN262NT♦4+1+10
-1.6Round 6🇳🇴 NORWAY254♥♣3+1+0
-1.6Round 7🇦🇷 ARGENTINA33NT♣5+1+1
-1.6Round 10🇹🇷 TURKEY274♥♦3-2+5
-1.6Round 16🇯🇵 JAPAN203NT♠K-2-8
-1.8Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND292♦♠10+2+0
-1.9Round 3🇱🇻 LATVIA73NT♥2=+0
-1.9Round 9🇱🇧 LEBANON22♠♦8+4-6
-1.9Round 16🇯🇵 JAPAN324♥♥6=+0
-2.1Round 13🇰🇼 KUWAIT103NT♣K=+1
-2.1Round 14🇵🇰 PAKISTAN212♠♣5+1-1
-2.2Round 6🇳🇴 NORWAY232NT♥8=-10
-2.2Round 10🇹🇷 TURKEY244♦♠7-2-6
-2.2Round 12BOSNIA HERZEGOVINA224♠x♦K-3+0
-2.5Round 12BOSNIA HERZEGOVINA294♠♦J+1+13
-2.5Round 12BOSNIA HERZEGOVINA323NT♠4=+0
-2.6Round 16🇯🇵 JAPAN272♠♥A-1-10
-2.7Round 10🇹🇷 TURKEY214♠♦Q=+1
-2.8Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND254♥x♣2-1-3
-2.8Round 7🇦🇷 ARGENTINA94♠♣2-1+1
-2.9Round 6🇳🇴 NORWAY244♠♦9-1-13
-2.9Round 10🇹🇷 TURKEY234♠♦6+3+9
-2.9Round 13🇰🇼 KUWAIT142♠♦A=-9
-3.0Round 1🇹🇳 TUNISIA102♠♦4=-6
-3.0Round 13🇰🇼 KUWAIT122♠♥6+1-1
-3.1Round 1🇹🇳 TUNISIA31♠♠5=-12
-3.2Round 3🇱🇻 LATVIA95♥♦A=+0
-3.2Round 14🇵🇰 PAKISTAN302♦♠9-1-4
-3.3Round 13🇰🇼 KUWAIT162♥♣4-1-5
-3.4Round 6🇳🇴 NORWAY294♠♥K+2-13
-3.4Round 7🇦🇷 ARGENTINA153♦♠4+1-7
-3.5Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND303♠♠3-2+0
-3.8Round 14🇵🇰 PAKISTAN243♣♦8+1-7
-3.9Round 1🇹🇳 TUNISIA74♠♠2+1+0
-3.9Round 13🇰🇼 KUWAIT43♠♥7=-1
-4.1Round 6🇳🇴 NORWAY316♥♣Q=+7
-4.2Round 12BOSNIA HERZEGOVINA202♠♥J+1+0
-4.4Round 10🇹🇷 TURKEY264♠♥J=+0
-4.5Round 9🇱🇧 LEBANON132♥♣2+3-9
-4.6Round 9🇱🇧 LEBANON104♦♠4=-10
-4.8Round 7🇦🇷 ARGENTINA43♠x♥2-1-7
-4.8Round 7🇦🇷 ARGENTINA124♠♥9+1-11
-4.9Round 3🇱🇻 LATVIA83NT♥A=+1
-5.1Round 6🇳🇴 NORWAY182NT♦8+1-1
-5.1Round 12BOSNIA HERZEGOVINA265♦♥2-2-2
-5.1Round 14🇵🇰 PAKISTAN264♠♦10-1-6
-5.4Round 3🇱🇻 LATVIA134♠♦5-1-6
-5.4Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND183NT♦Q=+1
-6.4Round 1🇹🇳 TUNISIA44♠x♠7-1-7
-6.7Round 4🏴󠁧󠁢󠁥󠁮󠁧󠁿 ENGLAND194♠♦A-3-9
-7.4Round 10🇹🇷 TURKEY184♠x♥2-2-5
-7.5Round 12BOSNIA HERZEGOVINA303♠♦3+2-16
-8.6Round 16🇯🇵 JAPAN225♦x♥K-2-8
-9.3Round 6🇳🇴 NORWAY273NT♦7=-11
-9.8Round 13🇰🇼 KUWAIT56♦♦4-2-17
-10.3Round 12BOSNIA HERZEGOVINA214♠♠A=-11
-10.6Round 16🇯🇵 JAPAN173NT♦2=-7
-10.9Round 9🇱🇧 LEBANON44♠♥8=-10
-11.1Round 12BOSNIA HERZEGOVINA175♦x♠A=-6
-14.3Round 10🇹🇷 TURKEY226♠♠8-2-17