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ALT COMPETITION 2026 - EVENT 1

Bridge Base Online, January 19 - 22, 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

Sibrand van Oosten

All-tournaments history →
BBO nickname: sibrand WBF: 41257

Sibrand VAN OOSTEN
Country: Netherlands
WBF: NED11143293 (41257)
MPPPTitleRank
🔵 Open900—699

Tournament statistics
 BoardsIMPsIMP/bdButlerButl/bd% bds
Declarer 11 +14 1.27 9.2 0.84 23%
Dummy 16 +40 2.50 20.9 1.31 33%
Defense, player leads 10 -30 -3.00 -32.6 -3.26 21%
Defense, partner leads 10 +21 2.10 0.1 0.01 21%
Passed out 1 +3 3.00 0.3 0.27 2%
Total 48 +48 1.00 -2.1 -0.04 100%
OtherDeclared (pair)Best roundWorst round
  27 R4 (+26) R8 (+6)
Card play (DD) (positions where every card gives the same result are not counted)CardsAccurateAcc %Subopt.Tricks lostLost/card
All cards 162 153 94.44% 9 12 0.0741
Opening lead 5 5 100.00% 0 0 0.0000
After the lead — declarer 91 84 92.31% 7 10 0.1099
After the lead — defense 66 64 96.97% 2 2 0.0303

Round 4  (match scorecard, all results of round 4)
ARGENTINA SENIOR
 VS
BC CRASH
CLOSED ROOM
 NS: Sibrand van Oosten - Thibo Sprinkhuizen
 EW: Carlos Lucena - Mauricio Macri
ARGENTINA SENIOR
VS
BC CRASH
CLOSED ROOM
NS: Sibrand van Oosten - Thibo Sprinkhuizen
EW: Carlos Lucena - Mauricio Macri

BRD # CONT LEAD TR SCORE Butler OTHER HOME AWAY
1 4♦N ♠2= =    +130 0.9 -50   5
2 3NTE ♠2-2 = -400  -7.2 -400  --
3 3NTS ♠4+2 +1    +430 1.7    +430 --
4 3♥S ♦9-1 -1 -100  3.2 -200   3
5 3NTS ♣6+1 +1    +630 7.5    +630 --
6 4♠E ♣Q= -2    +200 7.3 -140   8
7 Pass — 0 0.3 -110   3
8 4♠xS ♣4-1 -1 -100  -2.3 -420   8
9 4♥xE ♠K-1 = -790  -13.1 -620  5 
10 3♥E ♠5-1 -1    +100 0.5    +100 --
11 3NTS ♦7= +2    +460 6.7    +430  1
12 4♥N ♥2= =    +620 6.3    +620 --
13 4♥N ♣Q= =    +620 0.0    +620 --
14 3♦W ♠Q+1 = -110  -3.7    +110 6 
15 4♠S ♥A+1 +1    +650 10.0 -420   14
16 3♥N ♠A-3 -2 -100  0.3    +100 5 
ROUND 4 IMPs: 16 42
VP: 3.91 16.09
1 4♦N ♠2= =    +130 -50  5
2 3NTE ♠2-2 = -400  -400  -
3 3NTS ♠4+2 +1    +430    +430 -
4 3♥S ♦9-1 -1 -100  -200  3
5 3NTS ♣6+1 +1    +630    +630 -
6 4♠E ♣Q= -2    +200 -140  8
7 Pass — 0 -110  3
8 4♠xS ♣4-1 -1 -100  -420  8
9 4♥xE ♠K-1 = -790  -620  5
10 3♥E ♠5-1 -1    +100    +100 -
11 3NTS ♦7= +2    +460    +430 1
12 4♥N ♥2= =    +620    +620 -
13 4♥N ♣Q= =    +620    +620 -
14 3♦W ♠Q+1 = -110     +110 6
15 4♠S ♥A+1 +1    +650 -420  14
16 3♥N ♠A-3 -2 -100     +100 5
ROUND 4 IMPs: 16 42 VP: 3.91 16.09


Round 7  (match scorecard, all results of round 7)
BC CRASH
 VS
JUST JUMP
OPEN ROOM
 NS: Sibrand van Oosten - Thibo Sprinkhuizen
 EW: Oleg Shaposhnikov - Gennadii Rybnikov
BC CRASH
VS
JUST JUMP
OPEN ROOM
NS: Sibrand van Oosten - Thibo Sprinkhuizen
EW: Oleg Shaposhnikov - Gennadii Rybnikov

BRD # CONT LEAD TR SCORE Butler OTHER HOME AWAY
1 2NTS ♠9+1 +1    +150 -3.3    +300  4
2 2♥S ♦J-1 -1 -100  -0.9    +50  4
3 3♠E ♣7+1 +1 -170  6.9 -500  8 
4 4♠xW ♦Q= = -790  -13.6    +200  14
5 1NTW ♦J+1 -1    +50 2.2 -120  5 
6 2NTE ♠8= -4    +400 9.6    +100 7 
7 3NTN ♦Q-4 -4 -400  -5.9 -200   5
8 3♦E ♣K+1 = -110  -0.1 -100  --
9 6♥N ♥4-1 -1 -50  -6.0 -50  --
10 5♠xE ♣3+1 = -850  -4.7 -800   2
11 3NTN ♠6+1 =    +400 3.2 -100  11 
12 6NTW ♣4= = -990  -4.2 -980  --
13 2♠S ♣A+2 +1    +140 0.9    +170  1
14 1NTS ♣3= -1 -50  -0.6 -100  2 
15 3NTS ♥4-2 +1    +630 9.3 -200  13 
16 4♠E ♦5+1 +1 -650  -0.3 -650  --
ROUND 7 IMPs: 46 30
VP: 14.18 5.82
1 2NTS ♠9+1 +1    +150    +300 4
2 2♥S ♦J-1 -1 -100     +50 4
3 3♠E ♣7+1 +1 -170  -500  8
4 4♠xW ♦Q= = -790     +200 14
5 1NTW ♦J+1 -1    +50 -120  5
6 2NTE ♠8= -4    +400    +100 7
7 3NTN ♦Q-4 -4 -400  -200  5
8 3♦E ♣K+1 = -110  -100  -
9 6♥N ♥4-1 -1 -50  -50  -
10 5♠xE ♣3+1 = -850  -800  2
11 3NTN ♠6+1 =    +400 -100  11
12 6NTW ♣4= = -990  -980  -
13 2♠S ♣A+2 +1    +140    +170 1
14 1NTS ♣3= -1 -50  -100  2
15 3NTS ♥4-2 +1    +630 -200  13
16 4♠E ♦5+1 +1 -650  -650  -
ROUND 7 IMPs: 46 30 VP: 14.18 5.82


Round 8  (match scorecard, all results of round 8)
BC CRASH
 VS
NETBRIDGE
OPEN ROOM
 NS: Thibo Sprinkhuizen - Sibrand van Oosten
 EW: Kees Bouwen - Marco Zomer
BC CRASH
VS
NETBRIDGE
OPEN ROOM
NS: Thibo Sprinkhuizen - Sibrand van Oosten
EW: Kees Bouwen - Marco Zomer

BRD # CONT LEAD TR SCORE Butler OTHER HOME AWAY
1 5♦xN ♠A-1 -1 -100  0.3 -420  8 
2 2♥E ♣J+1 +1 -140  -2.6 -140  --
3 2♥S ♣K+1 +1    +140 1.0    +140 --
4 6♦E ♥K= = -1370  -8.0 -640   12
5 4♠N ♥K-2 -1 -100  -5.9    +110  5
6 4♥E ♣A-1 -1    +100 9.7 -630  12 
7 6♠E ♠4= = -1430  -2.6 -1430  --
8 3NTS ♣7= =    +400 4.0 -50  10 
9 4♣S ♥5-2 -2 -100  0.7 -50   2
10 4♦N ♠K-2 -1 -100  -1.7 -300  5 
11 3♥W ♣6-3 -3    +150 1.3 -50  5 
12 6♦S ♥7+1 +1    +1390 4.7    +1390 --
13 3♠E ♣2= = -140  -2.8    +100  6
14 6♣E ♠J= = -920  -7.1 -500   9
15 4♥N ♣4= =    +620 -0.1    +620 --
16 3NTN ♣Q-2 -2 -100  -3.9 -100  --
ROUND 8 IMPs: 40 34
VP: 11.76 8.24
1 5♦xN ♠A-1 -1 -100  -420  8
2 2♥E ♣J+1 +1 -140  -140  -
3 2♥S ♣K+1 +1    +140    +140 -
4 6♦E ♥K= = -1370  -640  12
5 4♠N ♥K-2 -1 -100     +110 5
6 4♥E ♣A-1 -1    +100 -630  12
7 6♠E ♠4= = -1430  -1430  -
8 3NTS ♣7= =    +400 -50  10
9 4♣S ♥5-2 -2 -100  -50  2
10 4♦N ♠K-2 -1 -100  -300  5
11 3♥W ♣6-3 -3    +150 -50  5
12 6♦S ♥7+1 +1    +1390    +1390 -
13 3♠E ♣2= = -140     +100 6
14 6♣E ♠J= = -920  -500  9
15 4♥N ♣4= =    +620    +620 -
16 3NTN ♣Q-2 -2 -100  -100  -
ROUND 8 IMPs: 40 34 VP: 11.76 8.24