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ALT TROPHY V

Bridge Base Online, July 21 - 23, 2026

Results produced by bridgeresults.org
CONDITIONS OF CONTEST
Leaderboard
Butler
Cross Table
Line-Up
Results of round:
01 02 03 04 05 06 07 08 SF1 SF2 F1 F2
Board details:
01 02 03 04 05 06 07 08 SF1 SF2 F1 F2

Erwin Witteveen

All-tournaments history →
BBO nickname: erwinw

Tournament statistics
 BoardsIMPsIMP/bdButlerButl/bd% bds
Declarer 17 +2 0.12 -0.1 -0.01 35%
Dummy 13 +40 3.08 17.6 1.35 27%
Defense, player leads 7 -22 -3.14 -23.9 -3.41 15%
Defense, partner leads 11 -23 -2.09 -1.7 -0.15 23%
Total 48 -3 -0.06 -8.1 -0.17 100%
OtherDeclared (pair)Best roundWorst round
  30 R6 (+20) R10 (-18)
Card play (DD) (positions where every card gives the same result are not counted)CardsAccurateAcc %Subopt.Tricks lostLost/card
All cards 174 163 93.68% 11 11 0.0632
Opening lead 5 4 80.00% 1 1 0.2000
After the lead — declarer 123 116 94.31% 7 7 0.0569
After the lead — defense 46 43 93.48% 3 3 0.0652

Round 1  (match scorecard, all results of round 1)
CANTOR
 VS
NETBRIDGE
OPEN ROOM
 NS: Peter Lund - Martin Cantor
 EW: Erwin Witteveen - Kees Rentes
CANTOR
VS
NETBRIDGE
OPEN ROOM
NS: Peter Lund - Martin Cantor
EW: Erwin Witteveen - Kees Rentes

BRD # CONT LEAD TR SCORE Butler OTHER HOME AWAY
1 3♦E ♠J= = -110  0.2 -100  --
2 2♠W ♥J+1 -1    +50 -2.6 -140  5 
3 4♠xE ♦K-1 -1    +200 5.2    +450  6
4 4♠W ♦4= = -620  9.8    +100  12
5 2NTW ♣10= -1    +50 -4.0    +50 --
6 6♦E ♥3-1 -1    +100 -8.3 -600  12 
7 4♥N ♥5= =    +620 -4.3 -100  12 
8 2♣E ♠5-1 = -90  -1.4 -140  2 
ROUND 1 IMPs: 31 18
VP: 14.68 5.32
1 3♦E ♠J= = -110  -100  -
2 2♠W ♥J+1 -1    +50 -140  5
3 4♠xE ♦K-1 -1    +200    +450 6
4 4♠W ♦4= = -620     +100 12
5 2NTW ♣10= -1    +50    +50 -
6 6♦E ♥3-1 -1    +100 -600  12
7 4♥N ♥5= =    +620 -100  12
8 2♣E ♠5-1 = -90  -140  2
ROUND 1 IMPs: 31 18 VP: 14.68 5.32


Round 4  (match scorecard, all results of round 4)
HARRIS
 VS
NETBRIDGE
CLOSED ROOM
 NS: Erwin Witteveen - Kees Rentes
 EW: Petar Ivanov - Steve Root
HARRIS
VS
NETBRIDGE
CLOSED ROOM
NS: Erwin Witteveen - Kees Rentes
EW: Petar Ivanov - Steve Root

BRD # CONT LEAD TR SCORE Butler OTHER HOME AWAY
1 4♥W ♠A-1 -2    +100 4.4    +100 --
2 3♦S ♣3-1 -1 -100  0.3 -100  --
3 2NTE ♥6-1 -1    +100 0.8 -50   4
4 5♦W ♠2= = -600  -7.7 -600  --
5 5♣E ♥A+1 +1 -420  -4.9 -420  --
6 3NTW ♣9= = -600  -6.9 -620   1
7 4♠N ♦5= =    +620 2.9    +600  1
8 3NTE ♥Q+2 +1 -430  0.2 -430  --
ROUND 4 IMPs: 0 6
VP: 7.58 12.42
1 4♥W ♠A-1 -2    +100    +100 -
2 3♦S ♣3-1 -1 -100  -100  -
3 2NTE ♥6-1 -1    +100 -50  4
4 5♦W ♠2= = -600  -600  -
5 5♣E ♥A+1 +1 -420  -420  -
6 3NTW ♣9= = -600  -620  1
7 4♠N ♦5= =    +620    +600 1
8 3NTE ♥Q+2 +1 -430  -430  -
ROUND 4 IMPs: 0 6 VP: 7.58 12.42


Round 5  (match scorecard, all results of round 5)
SENIOR TEAM
 VS
NETBRIDGE
CLOSED ROOM
 NS: Erwin Witteveen - Kees Rentes
 EW: Carlos Lucena - Mauricio Macri
SENIOR TEAM
VS
NETBRIDGE
CLOSED ROOM
NS: Erwin Witteveen - Kees Rentes
EW: Carlos Lucena - Mauricio Macri

BRD # CONT LEAD TR SCORE Butler OTHER HOME AWAY
1 3♦N ♣2-2 -1 -50  -1.9 -100   2
2 6♠S ♦2+1 =    +1430 0.9    +1470 1 
3 4♦E ♥5-2 -1    +100 -4.4    +420 8 
4 4♠E ♥Q-1 -1    +100 1.4    +100 --
5 3NTE ♦K-2 -2    +100 3.0    +150 2 
6 3♣S ♥9= =    +110 0.2 -50   4
7 4♥N ♠10= -1 -100  -0.7 -100  --
8 1NTW ♠9+2 +1 -120  1.3 -120  --
ROUND 5 IMPs: 11 6
VP: 12.05 7.95
1 3♦N ♣2-2 -1 -50  -100  2
2 6♠S ♦2+1 =    +1430    +1470 1
3 4♦E ♥5-2 -1    +100    +420 8
4 4♠E ♥Q-1 -1    +100    +100 -
5 3NTE ♦K-2 -2    +100    +150 2
6 3♣S ♥9= =    +110 -50  4
7 4♥N ♠10= -1 -100  -100  -
8 1NTW ♠9+2 +1 -120  -120  -
ROUND 5 IMPs: 11 6 VP: 12.05 7.95


Round 6  (match scorecard, all results of round 6)
NETBRIDGE
 VS
GREENBERG
OPEN ROOM
 NS: Erwin Witteveen - Kees Rentes
 EW: Timur Edis - Elvan Edis
NETBRIDGE
VS
GREENBERG
OPEN ROOM
NS: Erwin Witteveen - Kees Rentes
EW: Timur Edis - Elvan Edis

BRD # CONT LEAD TR SCORE Butler OTHER HOME AWAY
1 4♥S ♦A= =    +420 6.9 -650  14 
2 6♥W ♣J= = -980  -7.3 -480   11
3 5♦xS ♥2+1 +1    +650 5.6 -100  13 
4 5♣N ♥A= =    +600 5.8    +600 --
5 2♠N ♦9= =    +110 -0.3    +110 --
6 4♠S ♥A= =    +420 0.4    +420 --
7 4♥N ♣8= -1 -100  -11.2 -100  --
8 2♦S ♦8-1 -1 -50  0.2 -180  4 
ROUND 6 IMPs: 31 11
VP: 16.46 3.54
1 4♥S ♦A= =    +420 -650  14
2 6♥W ♣J= = -980  -480  11
3 5♦xS ♥2+1 +1    +650 -100  13
4 5♣N ♥A= =    +600    +600 -
5 2♠N ♦9= =    +110    +110 -
6 4♠S ♥A= =    +420    +420 -
7 4♥N ♣8= -1 -100  -100  -
8 2♦S ♦8-1 -1 -50  -180  4
ROUND 6 IMPs: 31 11 VP: 16.46 3.54


Round 9  (match scorecard, all results of round 9)
SENIOR TEAM
 VS
NETBRIDGE
OPEN ROOM
 NS: Walter Fornasari - Luis Palazzo
 EW: Kees Bouwen - Erwin Witteveen
SENIOR TEAM
VS
NETBRIDGE
OPEN ROOM
NS: Walter Fornasari - Luis Palazzo
EW: Kees Bouwen - Erwin Witteveen

BRD # CONT LEAD TR SCORE Butler OTHER HOME AWAY
1 2♥W ♣6+1 +1 -140  2.7    +110  6
2 3♠xW ♠A-3 -3    +500 4.6    +680  5
3 3NTS ♦3= +1    +430 -3.4    +420 --
4 3♣N ♥6+1 =    +110 -1.1 -100  5 
5 3NTW ♦Q= +1 -430  0.3 -430  --
6 3NTW ♥9= +1 -630  4.7 -600   1
7 4♠N ♦3+1 +1    +650 0.1    +650 --
8 4♠W ♦10-1 -1    +50 -0.7    +50 --
ROUND 9 IMPs: 5 12
VP: -7.00 7.00
1 2♥W ♣6+1 +1 -140     +110 6
2 3♠xW ♠A-3 -3    +500    +680 5
3 3NTS ♦3= +1    +430    +420 -
4 3♣N ♥6+1 =    +110 -100  5
5 3NTW ♦Q= +1 -430  -430  -
6 3NTW ♥9= +1 -630  -600  1
7 4♠N ♦3+1 +1    +650    +650 -
8 4♠W ♦10-1 -1    +50    +50 -
ROUND 9 IMPs: 5 12 VP: -7.00 7.00


Round 10  (match scorecard, all results of round 10)
NETBRIDGE
 VS
SENIOR TEAM
OPEN ROOM
 NS: Kees Bouwen - Erwin Witteveen
 EW: Carlos Lucena - Mauricio Macri
NETBRIDGE
VS
SENIOR TEAM
OPEN ROOM
NS: Kees Bouwen - Erwin Witteveen
EW: Carlos Lucena - Mauricio Macri

BRD # CONT LEAD TR SCORE Butler OTHER HOME AWAY
1 1NTS ♦6+1 +1    +120 -0.3    +110 --
2 3♠W ♣J+1 = -140  -0.1    +50  5
3 3♠W ♠A+1 +1 -170  1.3    +100  7
4 4♠N ♦K+1 +1    +650 2.0    +650 --
5 3NTW ♠J-1 -1    +50 2.0    +50 --
6 3NTN ♥3+1 -1 -50  -4.3 -50  --
7 3NTN ♠6= =    +600 2.1    +630  1
8 4♠S ♥K-1 -1 -50  -1.6    +140  5
ROUND 10 IMPs: 0 18
VP: -18.00 18.00
1 1NTS ♦6+1 +1    +120    +110 -
2 3♠W ♣J+1 = -140     +50 5
3 3♠W ♠A+1 +1 -170     +100 7
4 4♠N ♦K+1 +1    +650    +650 -
5 3NTW ♠J-1 -1    +50    +50 -
6 3NTN ♥3+1 -1 -50  -50  -
7 3NTN ♠6= =    +600    +630 1
8 4♠S ♥K-1 -1 -50     +140 5
ROUND 10 IMPs: 0 18 VP: -18.00 18.00