NIEMEIJER Chris · DUTCH SENIORS

271rank
+19.0Butler · 130 bds
+0.15per board
±4.1swing
-0.38vs par /bd · #499/695
+0.21adjusted /bd
Butler per round: 17.4 -15 -1.7 1.2 14.1 2 -4.4 -3.2 -10.7 -2 17 -0.4 4.7by round

vs par split: bidding -0.55 · play +0.17

Strength of schedule: opponents averaged +0.06/bd (a tough draw) → opponent-adjusted +0.21/bd

Card play — on target: opening leads 79.5% #355 of 694 · declarer play 80.0% #181 of 694 · defence 78.5% #567 of 695

Card play by contract type — on target
vs NTvs a suit
Opening leads55.6% (9)86.7% (30)
Declarer play100.0% (6)75.0% (24)
Defence50.0% (12)84.9% (53)

Opening leads by suit led: ♠ 83.3% (12) · ♥ 71.4% (7) · ♦ 75.0% (12) · ♣ 87.5% (8)

vs par by strain: NT -0.87 (31) · a suit -0.22 (99)

vs par by level: part-score -1.17 (48) · game -0.30 (77) · slam +6.00 (5)

By role: declaring +0.62/bd (-2.29 vs par · 65) · defending -0.33/bd (+1.54 vs par · 65)

By vulnerability: vulnerable +0.08/bd (-0.62 vs par · 64) · not vulnerable +0.21/bd (-0.14 vs par · 66)

By round↑ top

RoundPartnerOpponentsRoomBdsButlerAvgvs par
Round 1J.TrouwborstJ.Phelan – L.PhelanClosed10+17.4+1.74+0.70
Round 2J.TrouwborstA.Scheltinga – A.Van 'T HoenderdalOpen10-15.0-1.50-1.30
Round 3J.TrouwborstM.Verbeek – R.BarendregtClosed10-1.7-0.17-0.50
Round 4J.TrouwborstG.Karakolev – Z.ZaharievClosed10+1.2+0.12-1.00
Round 5J.TrouwborstJ.Fritsche – R.RohowskyClosed10+14.1+1.41+0.60
Round 6J.TrouwborstO.Svendsen – S.GillisClosed10+2.0+0.20-0.10
Round 8J.TrouwborstM.Cichocki – K.PikusClosed10-4.4-0.44+1.90
Round 9J.TrouwborstJ.Fantun – S.TeboulClosed10-3.2-0.32-0.10
Round 10J.TrouwborstD.Ueland – S.HoylandOpen10-10.7-1.07-2.30
Round 11J.TrouwborstT.Sokolow – G.JoelClosed10-2.0-0.20-3.50
Round 13J.TrouwborstS.Ter Elst – A.KleinOpen10+17.0+1.70+2.40
Round 14J.TrouwborstA.Helmich – G.HopClosed10-0.4-0.04-1.20
Round 15J.TrouwborstM.Hartono – M.SawiruddinOpen10+4.7+0.47-0.50

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
+12.2Round 1MUNSTER46♥♦10-1+17
+10.5Round 3HOK 2213NT♥10-1+12
+9.1Round 2ZEEROB WIT194♠♥5=+3
+8.5Round 13AARTS73♠x♠5=+11
+7.6Round 10HARDING24♠♦K=+0
+7.3Round 10HARDING54♥♣8+2+9
+7.0Round 6GILLIS242♦♥4-1+10
+6.4Round 5BAMRUHE205♦♠3=+0
+6.1Round 9FANDOURABOUL234♥♦4-1+12
+6.0Round 13AARTS64♥♣10=+0
+5.8Round 5BAMRUHE195♣♦2-3+11
+5.5Round 14JOLLY LOMBARD123NT♠5-2+8
+4.6Round 6GILLIS214♠♦5=+7
+4.5Round 13AARTS103NT♠Q-1+12
+4.3Round 4CHATEAU ROSSENOVO94♠♥K-5+3
+4.3Round 8SIWIK MRAGOWO163NT♠5-2+12
+4.1Round 3HOK 2242♠♦Q-3+6
+3.9Round 6GILLIS294♠♦J=-1
+3.7Round 2ZEEROB WIT183♣♣3+1+0
+3.7Round 14JOLLY LOMBARD165♦♥A=+3
+3.6Round 11JOEL143NT♥9=-1
+3.4Round 1MUNSTER33NT♦3+1+1
+3.4Round 4CHATEAU ROSSENOVO14♥x♠A-1+0
+3.3Round 1MUNSTER13♦♣2=+0
+3.3Round 11JOEL184♠♣K=+3
+3.2Round 1MUNSTER22♥♣5+1+7
+3.2Round 13AARTS41NT♠5=+6
+2.8Round 2ZEEROB WIT123♠♥5-2+2
+2.8Round 8SIWIK MRAGOWO174♥♣4-2+6
+2.7Round 5BAMRUHE142NT♠6+1+1
+2.5Round 1MUNSTER91NT♦5=+0
+2.5Round 5BAMRUHE181♠♣2+1+6
+2.4Round 3HOK 2284♠♦4+1+1
+2.4Round 9FANDOURABOUL273NT♦Q+1+4
+2.3Round 4CHATEAU ROSSENOVO73♥♠A-2+3
+2.2Round 15INDONESIA SENIOR235♣♦7-1+6
+2.1Round 15INDONESIA SENIOR274♠♥9+1+0
+2.0Round 14JOLLY LOMBARD134♥♠Q+3-12
+1.9Round 6GILLIS273♦♣5-4-5
+1.8Round 11JOEL123♦♥K=+7
+1.8Round 11JOEL175♥♦A-1+4
+1.8Round 14JOLLY LOMBARD113♦♥K=+0
+1.7Round 8SIWIK MRAGOWO144♥♣J-1+4
+1.6Round 10HARDING32♠♥J-1+0
+1.5Round 5BAMRUHE172♣♦Q+1+0
+1.5Round 8SIWIK MRAGOWO153NT♦K+3+1
+1.4Round 2ZEEROB WIT153♣♥8=-1
+1.4Round 4CHATEAU ROSSENOVO44♥♣7+2+2
+1.3Round 4CHATEAU ROSSENOVO64♠♥A=-1
+1.3Round 8SIWIK MRAGOWO134♥♦2=+3
+1.2Round 15INDONESIA SENIOR303NT♠9=-2
+1.1Round 1MUNSTER103♠♣4=+0
+1.1Round 6GILLIS302♦♠6+1+0
+1.1Round 8SIWIK MRAGOWO125♥x♠K-2+4
+1.0Round 15INDONESIA SENIOR244♠♥5+1+0
+1.0Round 15INDONESIA SENIOR294♠♥5+1+0
+0.9Round 2ZEEROB WIT172♠x♥7-1+0
+0.9Round 10HARDING103♣♠J=+1
+0.7Round 5BAMRUHE114♠♠10+1+1
+0.6Round 1MUNSTER82♠♥K-1-2
+0.6Round 3HOK 2262♠♠K-2-2
+0.6Round 9FANDOURABOUL224♥♠Q=+1
+0.4Round 4CHATEAU ROSSENOVO23♥♣J+1-6
+0.4Round 9FANDOURABOUL244♠♠5-1+4
+0.4Round 9FANDOURABOUL253♦♠K-1-2
+0.3Round 3HOK 2292♠♣K-1-1
+0.3Round 13AARTS13NT♣5+1-1
+0.2Round 4CHATEAU ROSSENOVO54♥x♣A-1-5
+0.2Round 9FANDOURABOUL293NT♠J=-2
+0.2Round 14JOLLY LOMBARD154♥♠5-1+5
+0.1Round 14JOLLY LOMBARD194♠♣10+1+0
-0.0Round 5BAMRUHE124♥♦2+1+0
+0.0Round 11JOEL193NT♥5+1-11
+0.0Round 13AARTS23♥♥9+1-8
-0.1Round 5BAMRUHE165♥♠7+1-1
-0.1Round 15INDONESIA SENIOR224♠♥8=+0
-0.2Round 3HOK 2271NT♠4+1-1
-0.2Round 15INDONESIA SENIOR264♠♣A=+0
-0.3Round 10HARDING13NT♦2+1-1
-0.3Round 14JOLLY LOMBARD143NT♠8=-11
-0.4Round 13AARTS53NT♣5=+1
-0.5Round 15INDONESIA SENIOR284♠♦Q+1+0
-0.6Round 9FANDOURABOUL284♥♠K+2+12
-0.6Round 15INDONESIA SENIOR252♠♠7+2-10
-0.8Round 6GILLIS234♥♥5=+1
-1.0Round 6GILLIS283NT♥7-1-4
-1.0Round 11JOEL163♦♠3-1-11
-1.0Round 11JOEL204♠♥Q+2-12
-1.0Round 13AARTS93NT♦6+3+12
-1.4Round 9FANDOURABOUL302NT♠Q=-7
-1.4Round 13AARTS81NT♦5-2-7
-1.4Round 15INDONESIA SENIOR214♥♣7=+1
-1.5Round 2ZEEROB WIT112♥♥A-2+0
-1.5Round 14JOLLY LOMBARD176♣♣2+1+11
-1.6Round 1MUNSTER62♠♦Q-1-11
-1.8Round 4CHATEAU ROSSENOVO82♠♦K=+0
-2.1Round 8SIWIK MRAGOWO185♥x♣A-3-4
-2.3Round 11JOEL134♥♦7+1+0
-2.4Round 5BAMRUHE134♠♦7+3-12
-2.5Round 6GILLIS222♠♥K+1+7
-2.7Round 3HOK 2253♦♦3+2-1
-2.7Round 13AARTS31NT♦9+2-2
-2.9Round 1MUNSTER73NT♥2+1-1
-3.0Round 5BAMRUHE156♥♣J=+0
-3.1Round 10HARDING43♦♠A+1+0
-3.3Round 11JOEL153NT♦5+4-3
-3.5Round 2ZEEROB WIT142♠♣7=-5
-3.7Round 8SIWIK MRAGOWO204♥♠Q=+0
-4.0Round 10HARDING63♠♦Q=-6
-4.1Round 4CHATEAU ROSSENOVO106♠♥10=+0
-4.3Round 8SIWIK MRAGOWO192♠♣10+1-1
-4.4Round 1MUNSTER54♣♥A-1-4
-4.4Round 9FANDOURABOUL264♥♦10-1-17
-4.6Round 2ZEEROB WIT163♠♥4=-6
-4.7Round 10HARDING83♠♣6-1-10
-4.9Round 3HOK 2223♦♠J-2-7
-4.9Round 6GILLIS253NT♥9-2-7
-4.9Round 11JOEL113NT♥5+3-11
-5.4Round 10HARDING74♠♥2-1-6
-5.6Round 3HOK 2232♠♠2+1-7
-5.9Round 14JOLLY LOMBARD185♣♠A=-3
-6.0Round 14JOLLY LOMBARD204♥♠2-2-13
-6.2Round 3HOK 2305♦x♠A-2-5
-6.2Round 4CHATEAU ROSSENOVO34♠♦6+1-6
-6.9Round 9FANDOURABOUL214♥♦A-2-6
-7.0Round 8SIWIK MRAGOWO113NT♥2=-6
-7.3Round 6GILLIS263NT♠4-3-9
-10.1Round 2ZEEROB WIT136♦♠8=+2
-10.6Round 10HARDING93NT♣Q=-10
-13.2Round 2ZEEROB WIT205♥x♠4=-8