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ALT COMPETITION 2026 - EVENT 4

Bridge Base Online, April 20 - 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
Board details:
01 02 03 04 05 06 07 08

Robbie de Koster

All-tournaments history →
BBO nickname: robbiedk WBF: 203249

Robbie DE KOSTER
Country: Netherlands
WBF: NED10666701 (203249)

Tournament statistics
 BoardsIMPsIMP/bdButlerButl/bd% bds
Declarer 10 +22 2.20 3.6 0.36 21%
Dummy 11 -9 -0.82 -12.5 -1.13 23%
Defense, player leads 10 +13 1.30 15.8 1.58 21%
Defense, partner leads 17 -11 -0.65 1.5 0.09 35%
Total 48 +15 0.31 8.5 0.18 100%
OtherDeclared (pair)Best roundWorst round
  21 R2 (+7) R7 (+4)
Card play (DD) (positions where every card gives the same result are not counted)CardsAccurateAcc %Subopt.Tricks lostLost/card
All cards 130 124 95.38% 6 6 0.0462
Opening lead 8 8 100.00% 0 0 0.0000
After the lead — declarer 71 68 95.77% 3 3 0.0423
After the lead — defense 51 48 94.12% 3 3 0.0588

Round 1  (match scorecard, all results of round 1)
BC CRASH
 VS
HARRIS
OPEN ROOM
 NS: Robbie de Koster - Eva Poppe
 EW: Vladi Isporski - Rumen Trendafilov
BC CRASH
VS
HARRIS
OPEN ROOM
NS: Robbie de Koster - Eva Poppe
EW: Vladi Isporski - Rumen Trendafilov

BRD # CONT LEAD TR SCORE Butler OTHER HOME AWAY
1 4♠xE ♥A= -1    +100 4.1    +100 --
2 6♠S ♦A= =    +1430 3.5    +1430 --
3 3♣S ♦K-1 -3 -150  -4.5    +150  7
4 2♣E ♠3+3 +3 -150  -1.6 -150  --
5 3NTE ♥2= = -400  0.3 -460  2 
6 3♣S ♦K-1 -1 -50  -3.2    +150  5
7 2♥W ♣3+1 +1 -140  -2.1    +100  6
8 3NTE ♣J-1 -1    +50 6.4 -400  10 
9 2♠N ♦3-1 -1 -50  0.4 -100  2 
10 2♣E ♣7+2 +2 -130  -0.3 -110   1
11 4♣N ♦K-1 -1 -50  -2.4 -50  --
12 4♥E ♠K= = -420  -6.1 -200   6
13 4♠S ♣Q+1 =    +620 9.5    +200 9 
14 5♦xS ♠2-1 -1 -100  -0.7 -300  5 
15 4♥W ♦5= = -420  0.0 -420  --
16 4♠E ♦A+1 +1 -650  1.7 -680  1 
ROUND 1 IMPs: 29 25
VP: 11.20 8.80
1 4♠xE ♥A= -1    +100    +100 -
2 6♠S ♦A= =    +1430    +1430 -
3 3♣S ♦K-1 -3 -150     +150 7
4 2♣E ♠3+3 +3 -150  -150  -
5 3NTE ♥2= = -400  -460  2
6 3♣S ♦K-1 -1 -50     +150 5
7 2♥W ♣3+1 +1 -140     +100 6
8 3NTE ♣J-1 -1    +50 -400  10
9 2♠N ♦3-1 -1 -50  -100  2
10 2♣E ♣7+2 +2 -130  -110  1
11 4♣N ♦K-1 -1 -50  -50  -
12 4♥E ♠K= = -420  -200  6
13 4♠S ♣Q+1 =    +620    +200 9
14 5♦xS ♠2-1 -1 -100  -300  5
15 4♥W ♦5= = -420  -420  -
16 4♠E ♦A+1 +1 -650  -680  1
ROUND 1 IMPs: 29 25 VP: 11.20 8.80


Round 2  (match scorecard, all results of round 2)
ULI
 VS
BC CRASH
CLOSED ROOM
 NS: Robbie de Koster - Eva Poppe
 EW: Gabriella Olivieri - Lorenzo Camerini
ULI
VS
BC CRASH
CLOSED ROOM
NS: Robbie de Koster - Eva Poppe
EW: Gabriella Olivieri - Lorenzo Camerini

BRD # CONT LEAD TR SCORE Butler OTHER HOME AWAY
1 3NTW ♠9-1 -1    +50 4.2    +50 --
2 3NTW ♥9-1 -1    +50 5.0 -400   10
3 4♠S ♦4+1 +1    +450 5.0    +450 --
4 2♥N ♥4+2 +2    +170 1.7    +170 --
5 2♠W ♥8= -1    +50 1.9 -140   5
6 2NTS ♠3+1 -2 -100  -2.8 -50  2 
7 4♠E ♥3+1 +1 -650  -3.5 -620  1 
8 3NTE ♠5+3 +3 -490  1.1 -490  --
9 3NTE ♠4= = -600  0.0 -620   1
10 4♠W ♠8+1 +1 -650  -0.1 -650  --
11 4♥N ♣J= =    +420 -0.5    +420 --
12 4♠E ♦5= = -420  -0.1 -420  --
13 2♥W ♣A-1 -2    +200 4.3    +170  1
14 3NTE ♥5+3 +1 -430  1.8 -430  --
15 4♥E ♦Q= = -420  -4.5 -170  6 
16 3NTE ♣2+2 +2 -660  -1.5 -630  1 
ROUND 2 IMPs: 10 17
VP: 7.97 12.03
1 3NTW ♠9-1 -1    +50    +50 -
2 3NTW ♥9-1 -1    +50 -400  10
3 4♠S ♦4+1 +1    +450    +450 -
4 2♥N ♥4+2 +2    +170    +170 -
5 2♠W ♥8= -1    +50 -140  5
6 2NTS ♠3+1 -2 -100  -50  2
7 4♠E ♥3+1 +1 -650  -620  1
8 3NTE ♠5+3 +3 -490  -490  -
9 3NTE ♠4= = -600  -620  1
10 4♠W ♠8+1 +1 -650  -650  -
11 4♥N ♣J= =    +420    +420 -
12 4♠E ♦5= = -420  -420  -
13 2♥W ♣A-1 -2    +200    +170 1
14 3NTE ♥5+3 +1 -430  -430  -
15 4♥E ♦Q= = -420  -170  6
16 3NTE ♣2+2 +2 -660  -630  1
ROUND 2 IMPs: 10 17 VP: 7.97 12.03


Round 7  (match scorecard, all results of round 7)
PEANUTS
 VS
BC CRASH
CLOSED ROOM
 NS: Eva Poppe - Robbie de Koster
 EW: Thomas Bessis - Cédric Lorenzini
PEANUTS
VS
BC CRASH
CLOSED ROOM
NS: Eva Poppe - Robbie de Koster
EW: Thomas Bessis - Cédric Lorenzini

BRD # CONT LEAD TR SCORE Butler OTHER HOME AWAY
1 3♣E ♠A-3 -3    +150 2.1 -50   5
2 2♠E ♥3+1 = -110  2.5 -200   3
3 1NTS ♣4-2 -1 -50  -1.7 -50  --
4 1NTS ♣2= =    +90 -0.8    +110 1 
5 5♦S ♥9= =    +600 9.1    +600 --
6 5♣xS ♠K-1 -1 -100  -1.9 -620   11
7 4♠N ♥9+1 +1    +650 4.7 -100   13
8 4♠W ♣5= = -420  0.2 -420  --
9 2♠S ♥4= -1 -50  -2.4 -150   3
10 3NTN ♠5-1 -1 -100  -12.6    +620 12 
11 6♥N ♥3= -2 -100  -10.5    +480 11 
12 3NTE ♣5+1 = -400  -2.0 -200  5 
13 1NTS ♥Q-3 -3 -300  2.2 -600   7
14 3NTW ♣3+1 = -400  1.7 -420   1
15 5♥W ♣10+2 +2 -510  1.7    +50 11 
16 1NTN ♥4+2 +2    +150 -0.7    +120  1
ROUND 7 IMPs: 40 44
VP: 8.80 11.20
1 3♣E ♠A-3 -3    +150 -50  5
2 2♠E ♥3+1 = -110  -200  3
3 1NTS ♣4-2 -1 -50  -50  -
4 1NTS ♣2= =    +90    +110 1
5 5♦S ♥9= =    +600    +600 -
6 5♣xS ♠K-1 -1 -100  -620  11
7 4♠N ♥9+1 +1    +650 -100  13
8 4♠W ♣5= = -420  -420  -
9 2♠S ♥4= -1 -50  -150  3
10 3NTN ♠5-1 -1 -100     +620 12
11 6♥N ♥3= -2 -100     +480 11
12 3NTE ♣5+1 = -400  -200  5
13 1NTS ♥Q-3 -3 -300  -600  7
14 3NTW ♣3+1 = -400  -420  1
15 5♥W ♣10+2 +2 -510     +50 11
16 1NTN ♥4+2 +2    +150    +120 1
ROUND 7 IMPs: 40 44 VP: 8.80 11.20