🇨🇳 MA Jiayi · CHINA U21
76rank
-0.2net boards · 30 bds
49.7%board-a-match
±0.5swing
by round
Bidding activity — not a pass: 34.1% (31/91)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Net | BAM% |
|---|---|---|---|---|---|---|
| Round 9 | T.Zheng | J.Andruszkiewicz – E.Sucharda | Open | 2 | +0.9 | 72.5% |
| Round 10 | T.Zheng | A.Nilsson – M.Bertheau | Open | 2 | -0.3 | 42.5% |
| Round 11 | T.Zheng | D.Kapiris – P.Skordas | Open | 2 | +0.0 | 50.0% |
| Round 12 | T.Zheng | M.Satriawan – S.Wijayanto | Open | 2 | -0.2 | 45.0% |
| Round 13 | T.Zheng | D.Lee – S.Wu | Open | 2 | -0.2 | 45.0% |
| Round 14 | T.Zheng | A.Cope – O.Selby | Open | 2 | -0.8 | 30.0% |
| Round 15 | T.Zheng | D.Brandgaard – C.Lahrmann | Open | 2 | +1.5 | 87.5% |
| Round 16 | T.Zheng | T.Van De Paverd – T.Westerveld | Open | 2 | -0.4 | 40.0% |
| Round 17 | T.Zheng | N.Heiberg-Evenstad – A.Brogeland | Open | 2 | +0.8 | 70.0% |
| Round 18 | T.Zheng | A.Hutton – O.Powell | Open | 2 | -1.0 | 25.0% |
| Round 19 | T.Zheng | S.Kar – S.Bar | Open | 2 | +0.3 | 57.5% |
| Round 20 | T.Zheng | N.Tabata – M.Kurek Beaulieu | Closed | 2 | -0.7 | 32.5% |
| Round 21 | T.Zheng | R.Kreitals – D.Jansons | Closed | 2 | -1.1 | 22.5% |
| Round 22 | T.Zheng | A.Bauer – P.Petrov | Closed | 2 | +0.2 | 55.0% |
| Round 23 | T.Zheng | M.Kedzierski – J.Bazyluk | Closed | 2 | +0.8 | 70.0% |
Every board — best board-a-match first↑ top
| BAM% | Round | Opponents | Bd | Contract | Lead | Res |
|---|---|---|---|---|---|---|
| 95.0% | Round 15 | 🇩🇰 DENMARK U26 | 29 | 4♥x | ♦A | -4 |
| 85.0% | Round 17 | 🇳🇴 NORWAY U21 | 1 | 1NT | ♣A | +1 |
| 80.0% | Round 9 | 🇵🇱 POLAND U31 | 17 | 1♠ | ♦T | +3 |
| 80.0% | Round 15 | 🇩🇰 DENMARK U26 | 30 | 4♠x | ♥A | = |
| 70.0% | Round 10 | 🇸🇪 SWEDEN U21 | 19 | 3NT | ♥A | -3 |
| 70.0% | Round 23 | 🇵🇱 POLAND U26 | 13 | 6♠ | ♣T | +1 |
| 70.0% | Round 23 | 🇵🇱 POLAND U26 | 14 | 6♣ | ♠7 | +1 |
| 65.0% | Round 9 | 🇵🇱 POLAND U31 | 18 | 2♠ | ♥A | -1 |
| 65.0% | Round 19 | 🇮🇳 INDIA U31 | 6 | 3NT | ♣T | -3 |
| 60.0% | Round 12 | METAFORSA | 23 | 3NT | ♠2 | = |
| 60.0% | Round 16 | NL U26 | 32 | 4♥ | ♣K | = |
| 55.0% | Round 11 | 🇬🇷 GREECE | 21 | 5♣ | ♦Q | +1 |
| 55.0% | Round 13 | BANANA | 25 | 4♠ | ♥6 | +2 |
| 55.0% | Round 14 | 🏴 ENGLAND LIONS | 28 | 3NT | ♦3 | +1 |
| 55.0% | Round 17 | 🇳🇴 NORWAY U21 | 2 | 2♠ | ♥2 | +2 |
| 55.0% | Round 22 | SOJA THE DRAGON | 11 | 3NTx | ♥9 | +1 |
| 55.0% | Round 22 | SOJA THE DRAGON | 12 | 4♣ | ♥K | -1 |
| 50.0% | Round 19 | 🇮🇳 INDIA U31 | 5 | 3♦ | ♠K | -2 |
| 45.0% | Round 11 | 🇬🇷 GREECE | 22 | 4♠ | ♣8 | = |
| 40.0% | Round 20 | 🇫🇷 FRANCE U26 | 8 | 4♠ | ♥6 | +1 |
| 35.0% | Round 13 | BANANA | 26 | 3♠ | ♥T | -1 |
| 35.0% | Round 18 | 🏴 ENGLAND U31 | 4 | 4♠x | ♥5 | = |
| 30.0% | Round 12 | METAFORSA | 24 | 3NT | ♥K | -1 |
| 30.0% | Round 21 | 🇱🇻 LATVIA U31 | 10 | 4♠ | ♣7 | -1 |
| 25.0% | Round 20 | 🇫🇷 FRANCE U26 | 7 | 2♠ | ♣K | +2 |
| 20.0% | Round 16 | NL U26 | 31 | 3♦x | ♦7 | -1 |
| 15.0% | Round 10 | 🇸🇪 SWEDEN U21 | 20 | 3♥ | ♣5 | = |
| 15.0% | Round 18 | 🏴 ENGLAND U31 | 3 | 4♥ | ♣J | +2 |
| 15.0% | Round 21 | 🇱🇻 LATVIA U31 | 9 | 4♦ | ♠A | +1 |
| 5.0% | Round 14 | 🏴 ENGLAND LIONS | 27 | 5♦x | ♠T | -3 |