IZWANTOWSKI Jan · POLAND U21
105rank
-0.8net boards · 30 bds
48.7%board-a-match
±0.7swing
by round
Bidding activity — not a pass: 40.4% (36/89)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Net | BAM% |
|---|---|---|---|---|---|---|
| Round 1 | M.Brzozowski | B.Chmurski – D.Ocylok | Closed | 2 | -0.8 | 30.0% |
| Round 2 | M.Brzozowski | C.Bakke – B.Brogeland | Closed | 2 | -0.2 | 45.0% |
| Round 3 | M.Brzozowski | V.Marini – P.Caffarena | Closed | 2 | +1.1 | 77.5% |
| Round 4 | M.Brzozowski | M.Moraru – I.Pagu | Closed | 2 | +1.8 | 95.0% |
| Round 5 | M.Brzozowski | L.Bellicaud – T.Guichet | Closed | 2 | +0.2 | 55.0% |
| Round 6 | M.Brzozowski | P.Crisafulli Sadaba – S.Hermann | Closed | 2 | +0.3 | 57.5% |
| Round 7 | M.Brzozowski | M.Prokopowicz – B.Mroz | Closed | 2 | +0.2 | 55.0% |
| Round 8 | M.Brzozowski | T.Gotard – F.Alter | Closed | 2 | -1.5 | 12.5% |
| Round 18 | M.Brzozowski | I.Bareket – A.Lengy | Open | 2 | -0.6 | 35.0% |
| Round 19 | M.Brzozowski | S.Jedrzejewski – M.Smolen | Open | 2 | -1.7 | 7.5% |
| Round 20 | M.Brzozowski | F.Piedra – M.Mediero | Open | 2 | -0.8 | 30.0% |
| Round 21 | M.Brzozowski | M.Drozd – N.Vachtarcikova | Open | 2 | -0.4 | 40.0% |
| Round 22 | M.Brzozowski | U.Suzer – C.Eler | Open | 2 | +1.2 | 80.0% |
| Round 23 | M.Brzozowski | G.Neamtu – C.Popescu | Open | 2 | -0.9 | 27.5% |
| Round 24 | M.Brzozowski | P.Volhejn – V.Volhejn | Open | 2 | +1.2 | 80.0% |
Every board — best board-a-match first↑ top
| BAM% | Round | Opponents | Bd | Contract | Lead | Res |
|---|---|---|---|---|---|---|
| 97.0% | Round 4 | DEAD BIRDS CLUB | 7 | 3NT | ♠5 | = |
| 95.5% | Round 3 | ITA WILD BOYS | 5 | 6♠ | ♣K | -5 |
| 95.5% | Round 4 | DEAD BIRDS CLUB | 8 | 4♠ | ♥A | +1 |
| 92.4% | Round 24 | CZECHIA JAS | 31 | 2NT | ♦Q | +1 |
| 83.4% | Round 5 | FRANCE JUNIOR | 10 | 4♦ | ♣Q | -2 |
| 81.8% | Round 21 | CZECHIA FANATIC | 26 | 4♥ | ♦3 | = |
| 81.8% | Round 22 | ELER | 28 | 3NT | ♦5 | -2 |
| 80.3% | Round 6 | SUIT YOURSELF | 12 | 3♣ | ♥2 | -1 |
| 78.8% | Round 22 | ELER | 27 | 4♥ | ♣5 | = |
| 75.0% | Round 2 | GILLIS | 3 | 3♥ | ♦A | = |
| 65.1% | Round 24 | CZECHIA JAS | 32 | 2♠ | ♦A | -3 |
| 59.1% | Round 3 | ITA WILD BOYS | 6 | 3♥ | ♣J | -1 |
| 59.1% | Round 7 | POLAND U16 | 13 | 6♠ | ♦9 | = |
| 59.1% | Round 20 | MSV | 23 | 2♥ | ♦A | = |
| 55.0% | Round 1 | ICENTIS BRIDGE CLUB | 2 | 3♣ | ♦6 | -1 |
| 53.0% | Round 7 | POLAND U16 | 14 | 2NT | ♦7 | -1 |
| 40.0% | Round 18 | PATRICK SAADA | 19 | 5♦ | ♠K | -1 |
| 36.4% | Round 6 | SUIT YOURSELF | 11 | 5♥x | ♣A | -2 |
| 33.4% | Round 23 | SPRING | 30 | 4♠ | ♣2 | +2 |
| 30.0% | Round 18 | PATRICK SAADA | 20 | 3♠ | ♣A | -3 |
| 25.8% | Round 5 | FRANCE JUNIOR | 9 | 3♠ | ♠2 | +1 |
| 22.7% | Round 8 | PRESIDENTS WALDSOLMS | 15 | 4♥x | ♣A | -1 |
| 22.7% | Round 23 | SPRING | 29 | 4♠ | ♦7 | +2 |
| 15.0% | Round 2 | GILLIS | 4 | 7♠ | ♣A | = |
| 10.6% | Round 19 | GDANSK | 22 | 3♦ | ♥J | +1 |
| 5.0% | Round 1 | ICENTIS BRIDGE CLUB | 1 | 3♣ | ♦K | -2 |
| 4.5% | Round 19 | GDANSK | 21 | 7♥x | ♦K | -1 |
| 3.1% | Round 20 | MSV | 24 | 4♠x | ♥J | -3 |
| 0.0% | Round 8 | PRESIDENTS WALDSOLMS | 16 | 7NTx | ♣A | -5 |
| 0.0% | Round 21 | CZECHIA FANATIC | 25 | 3NT | ♥5 | -3 |