CHEN Yufan · SX NEBULA
vs par split: bidding -0.40 · play -0.87
Strength of schedule: opponents averaged +0.42/bd (a tough draw) → opponent-adjusted -0.63/bd
Card play — on target: opening leads 72.2% #27 of 51 · declarer play 81.8% #23 of 51 · defence 66.7% #41 of 51
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 66.7% (9) | 77.8% (9) |
| Declarer play | 66.7% (6) | 100.0% (5) |
| Defence | 63.2% (19) | 69.6% (23) |
Opening leads by suit led: ♠ 100.0% (3) · ♥ 50.0% (6) · ♦ 50.0% (4) · ♣ 100.0% (5)
vs par by strain: NT -0.58 (31) · a suit -1.82 (39)
vs par by level: part-score +0.03 (30) · game -2.12 (34) · slam -3.00 (6)
By role: declaring -0.18/bd (-2.57 vs par · 28) · defending -1.63/bd (-0.41 vs par · 42)
By vulnerability: vulnerable -2.03/bd (-2.06 vs par · 36) · not vulnerable -0.01/bd (-0.44 vs par · 34)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | S.Ma | Y.Jiang – Q.Tang | Open | 10 | -18.4 | -1.84 | -3.70 |
| Round 2 | T.Tang | Z.Yuan – Y.Wang | Closed | 10 | +16.7 | +1.67 | +1.30 |
| Round 3 | T.Tang | J.Xu – J.Sun | Open | 10 | +3.5 | +0.35 | +0.40 |
| Round 5 | S.Ma | P.Wang – T.Yan | Open | 10 | -28.0 | -2.80 | -4.60 |
| Round 6 | T.Tang | A.Dhir – M.Weingarten | Open | 10 | -35.6 | -3.56 | -1.30 |
| Round 7 | S.Ma | Y.Liu – H.Dai | Closed | 10 | -10.9 | -1.09 | +0.70 |
| Round 8 | S.Ma | Y.Wang – L.Fan | Closed | 10 | -0.8 | -0.08 | -1.70 |
Every board — best Butler first↑ top
vs par = IMPs this pair scored above (+) or below (−) the board’s double-dummy par — what bidding and play (theirs and the opponents’) added or gave away against perfect play.
| Butler | Round | Opponents | Bd | Contract | Lead | Res | vs par |
|---|---|---|---|---|---|---|---|
| +13.6 | Round 1 | SX MERCURY | 10 | 6♥ | ♦A | = | +13 |
| +13.0 | Round 2 | SX STARLORD | 13 | 3♦ | ♣5 | -1 | +13 |
| +8.6 | Round 3 | SX VENUS | 6 | 3NT | ♦A | -3 | +9 |
| +7.9 | Round 5 | SX SATURN | 21 | 6NT | ♥6 | = | +0 |
| +7.7 | Round 7 | SX JUPITER | 14 | 5♠x | ♥3 | +1 | +13 |
| +5.4 | Round 2 | SX STARLORD | 16 | 4♠ | ♠10 | +2 | -11 |
| +5.3 | Round 8 | SX MARS | 8 | 3NT | ♦2 | -4 | +8 |
| +5.0 | Round 8 | SX MARS | 10 | 1NT | ♠4 | +2 | +6 |
| +4.3 | Round 2 | SX STARLORD | 20 | 3NT | ♥2 | -1 | +6 |
| +4.0 | Round 2 | SX STARLORD | 11 | 1NT | ♠9 | = | +5 |
| +3.6 | Round 3 | SX VENUS | 1 | 2NT | ♥9 | +1 | +1 |
| +3.0 | Round 8 | SX MARS | 1 | 3NT | ♠8 | +1 | +7 |
| +3.0 | Round 8 | SX MARS | 2 | 2NT | ♥8 | +3 | -5 |
| +2.7 | Round 7 | SX JUPITER | 11 | 3NT | ♥5 | -2 | +6 |
| +2.6 | Round 1 | SX MERCURY | 9 | 4♥x | ♦K | -1 | -5 |
| +2.3 | Round 1 | SX MERCURY | 3 | 6♠ | ♣A | +1 | -11 |
| +2.1 | Round 1 | SX MERCURY | 2 | 2♥ | ♦10 | +1 | +0 |
| +1.9 | Round 5 | SX SATURN | 25 | 3NT | ♣6 | = | +1 |
| +1.6 | Round 6 | USA | 4 | 4♦ | ♥K | = | +10 |
| +1.6 | Round 7 | SX JUPITER | 19 | 3♥ | ♦A | +1 | +6 |
| +0.9 | Round 3 | SX VENUS | 3 | 3♦ | ♠3 | -1 | +3 |
| +0.9 | Round 6 | USA | 8 | 3♠ | ♣8 | -2 | +5 |
| +0.9 | Round 7 | SX JUPITER | 18 | 3NT | ♥4 | +2 | +0 |
| +0.4 | Round 3 | SX VENUS | 9 | 3NT | ♦4 | = | +1 |
| +0.4 | Round 8 | SX MARS | 6 | 3NT | ♦2 | = | +0 |
| +0.3 | Round 2 | SX STARLORD | 12 | 2♦ | ♣K | -2 | -1 |
| +0.1 | Round 8 | SX MARS | 9 | 3♠ | ♥2 | +1 | -1 |
| +0.0 | Round 2 | SX STARLORD | 18 | 3NT | ♠Q | +1 | +0 |
| +0.0 | Round 3 | SX VENUS | 10 | 4♥ | ♣Q | -1 | +6 |
| -0.1 | Round 2 | SX STARLORD | 19 | 2♠ | ♣J | +1 | +10 |
| -0.3 | Round 5 | SX SATURN | 30 | 4NT | ♥10 | +1 | +1 |
| -0.7 | Round 6 | USA | 5 | 3♥ | ♠3 | = | -1 |
| -0.9 | Round 5 | SX SATURN | 23 | 3♥ | ♣K | = | -12 |
| -1.1 | Round 3 | SX VENUS | 7 | 3NT | ♦3 | +2 | -1 |
| -1.3 | Round 7 | SX JUPITER | 12 | 3♣ | ♦A | +1 | +0 |
| -1.3 | Round 7 | SX JUPITER | 15 | 5♥ | ♥2 | +1 | -2 |
| -1.6 | Round 7 | SX JUPITER | 17 | 2♠ | ♥8 | -2 | +0 |
| -1.7 | Round 2 | SX STARLORD | 17 | 3NT | ♠3 | +2 | -1 |
| -1.7 | Round 5 | SX SATURN | 28 | 2NT | ♣J | +1 | -2 |
| -1.9 | Round 3 | SX VENUS | 4 | 3♦ | ♥A | -1 | +0 |
| -2.0 | Round 1 | SX MERCURY | 1 | 2NT | ♥4 | = | +1 |
| -2.0 | Round 3 | SX VENUS | 8 | 3♠ | ♣K | -2 | -5 |
| -2.1 | Round 3 | SX VENUS | 2 | 3♠ | ♣A | +1 | -4 |
| -2.4 | Round 6 | USA | 3 | 3♠ | ♦7 | = | +0 |
| -2.9 | Round 3 | SX VENUS | 5 | 1NT | ♣2 | +1 | -6 |
| -2.9 | Round 6 | USA | 9 | 1NT | ♠5 | -1 | +0 |
| -3.0 | Round 1 | SX MERCURY | 5 | 3♦ | ♥3 | -2 | -7 |
| -3.1 | Round 2 | SX STARLORD | 15 | 4♥ | ♥3 | +1 | -6 |
| -3.3 | Round 8 | SX MARS | 4 | 4♥ | ♠10 | -1 | -6 |
| -3.4 | Round 5 | SX SATURN | 27 | 2♣ | ♥6 | +3 | -7 |
| -3.9 | Round 8 | SX MARS | 7 | 3NT | ♣K | -1 | -12 |
| -4.1 | Round 6 | USA | 7 | 3♥ | ♦8 | +1 | -1 |
| -4.3 | Round 6 | USA | 1 | 2♠ | ♣9 | = | -5 |
| -4.4 | Round 8 | SX MARS | 5 | 3NT | ♥9 | +3 | -1 |
| -5.0 | Round 6 | USA | 6 | 4♠ | ♥A | = | -7 |
| -5.0 | Round 7 | SX JUPITER | 13 | 6♠ | ♥J | +1 | -8 |
| -5.1 | Round 5 | SX SATURN | 29 | 4♠ | ♥K | = | +1 |
| -5.3 | Round 1 | SX MERCURY | 7 | 3NT | ♠5 | = | +0 |
| -5.4 | Round 2 | SX STARLORD | 14 | 1NT | ♥8 | +2 | -2 |
| -6.0 | Round 8 | SX MARS | 3 | 3NT | ♠2 | -2 | -13 |
| -6.3 | Round 6 | USA | 2 | 4♥ | ♥8 | +1 | -4 |
| -6.3 | Round 7 | SX JUPITER | 16 | 7♠ | ♣2 | = | +0 |
| -7.1 | Round 1 | SX MERCURY | 6 | 3NT | ♣8 | +1 | +0 |
| -7.6 | Round 5 | SX SATURN | 24 | 4♥ | ♥3 | +2 | -11 |
| -8.1 | Round 5 | SX SATURN | 22 | 3NT | ♥6 | = | -7 |
| -8.3 | Round 1 | SX MERCURY | 8 | 6♥x | ♠2 | -2 | -12 |
| -8.3 | Round 7 | SX JUPITER | 20 | 4♠ | ♦A | -2 | -8 |
| -10.7 | Round 5 | SX SATURN | 26 | 3NT | ♠3 | = | -10 |
| -12.4 | Round 6 | USA | 10 | 3NT | ♥7 | = | -10 |
| -13.3 | Round 1 | SX MERCURY | 4 | 4♠ | ♣4 | -3 | -16 |