🇺🇸 CHIU Jason · USA RED
55rank
-18.8Butler · 100 bds
-0.19per board
±4.6swing
-0.10vs par /bd
-0.11adjusted /bd
by round
vs par split: bidding -0.02 · play -0.08
Strength of schedule: opponents averaged +0.08/bd (a tough draw) → opponent-adjusted -0.11/bd
Card play — on target: opening leads 76.9% · declarer play 74.1% · defence 89.6%
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 87.5% (8) | 72.2% (18) |
| Declarer play | 42.9% (7) | 85.0% (20) |
| Defence | 85.7% (14) | 91.2% (34) |
Opening leads by suit led: ♠ 100.0% (6) · ♥ 87.5% (8) · ♦ 60.0% (5) · ♣ 57.1% (7)
vs par by strain: NT +0.73 (26) · a suit -0.39 (74)
vs par by level: part-score +1.17 (41) · game -0.44 (50) · slam -4.00 (9)
By role: declaring -0.01/bd (-2.19 vs par · 52) · defending -0.39/bd (+2.17 vs par · 48)
By vulnerability: vulnerable -0.20/bd (-0.74 vs par · 50) · not vulnerable -0.17/bd (+0.54 vs par · 50)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | M.Beck | S.Katz – D.Goldfein | Open | 20 | -42.1 | -2.10 | -1.55 |
| Round 3 | M.Beck | R.Segev – D.Tal | Closed | 20 | -7.8 | -0.39 | +1.05 |
| Round 4 | M.Beck | J.Balasovs – J.Bethers | Open | 20 | +7.2 | +0.36 | -0.85 |
| Round 9 | M.Beck | C.Poon – T.Koo | Closed | 20 | -12.0 | -0.60 | -0.40 |
| Round 11 | M.Beck | N.Junthiang – S.Sansuwan | Closed | 20 | +35.9 | +1.79 | +1.25 |
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 |
|---|---|---|---|---|---|---|---|
| +11.1 | Round 4 | 🇱🇻 LATVIA | 13 | 3NT | ♦10 | -1 | +16 |
| +10.3 | Round 11 | 🇹🇭 THAILAND | 18 | 4♥ | ♣A | -3 | +15 |
| +9.1 | Round 11 | 🇹🇭 THAILAND | 2 | 3♣ | ♠J | = | +9 |
| +8.4 | Round 9 | 🇭🇰 CHINA HONG KONG | 9 | 1♥x | ♦Q | -2 | +9 |
| +7.7 | Round 11 | 🇹🇭 THAILAND | 13 | 2♠ | ♣K | +1 | +10 |
| +7.6 | Round 3 | 🇮🇱 ISRAEL | 20 | 2♦ | ♥Q | = | +12 |
| +7.5 | Round 11 | 🇹🇭 THAILAND | 20 | 4♥ | ♦J | = | +0 |
| +7.1 | Round 1 | 🇺🇸 USA BLUE | 4 | 6♠ | ♥K | +1 | +12 |
| +6.3 | Round 9 | 🇭🇰 CHINA HONG KONG | 1 | 4♠ | ♣K | -1 | +10 |
| +6.2 | Round 4 | 🇱🇻 LATVIA | 2 | 3NT | ♠4 | -2 | +7 |
| +6.1 | Round 3 | 🇮🇱 ISRAEL | 16 | 4♠ | ♥10 | = | +8 |
| +4.9 | Round 11 | 🇹🇭 THAILAND | 17 | 3NT | ♥4 | -1 | +5 |
| +4.7 | Round 1 | 🇺🇸 USA BLUE | 11 | 4♥ | ♦4 | = | +0 |
| +4.5 | Round 9 | 🇭🇰 CHINA HONG KONG | 18 | 2♠ | ♣K | = | +0 |
| +3.9 | Round 1 | 🇺🇸 USA BLUE | 5 | 1NT | ♠7 | = | +5 |
| +3.8 | Round 1 | 🇺🇸 USA BLUE | 6 | 5♦ | ♠7 | -1 | +6 |
| +3.5 | Round 11 | 🇹🇭 THAILAND | 7 | 4♠ | ♥J | -1 | -12 |
| +3.3 | Round 11 | 🇹🇭 THAILAND | 10 | 3♥ | ♣10 | -1 | +0 |
| +3.1 | Round 9 | 🇭🇰 CHINA HONG KONG | 13 | 4♠ | ♣A | -1 | -1 |
| +3.0 | Round 4 | 🇱🇻 LATVIA | 7 | 2♠ | ♥Q | +1 | +0 |
| +3.0 | Round 9 | 🇭🇰 CHINA HONG KONG | 19 | 3NT | ♠4 | -2 | +13 |
| +2.9 | Round 3 | 🇮🇱 ISRAEL | 19 | 3NT | ♠8 | +1 | +0 |
| +2.9 | Round 4 | 🇱🇻 LATVIA | 12 | 2♠ | ♦10 | +2 | +1 |
| +2.9 | Round 11 | 🇹🇭 THAILAND | 1 | 3♥ | ♠A | = | +6 |
| +2.6 | Round 11 | 🇹🇭 THAILAND | 16 | 1NT | ♣J | = | -1 |
| +2.5 | Round 3 | 🇮🇱 ISRAEL | 6 | 2♠ | ♥8 | +1 | +0 |
| +2.5 | Round 4 | 🇱🇻 LATVIA | 3 | 5♦ | ♣K | = | +0 |
| +2.1 | Round 4 | 🇱🇻 LATVIA | 1 | 2♥ | ♦K | -2 | -7 |
| +2.1 | Round 4 | 🇱🇻 LATVIA | 4 | 3NT | ♦5 | +3 | +17 |
| +1.9 | Round 1 | 🇺🇸 USA BLUE | 3 | 1♦ | ♥8 | -3 | +10 |
| +1.7 | Round 1 | 🇺🇸 USA BLUE | 14 | 4♠ | ♥A | -2 | +5 |
| +1.5 | Round 4 | 🇱🇻 LATVIA | 19 | 1NT | ♠7 | = | +1 |
| +1.4 | Round 9 | 🇭🇰 CHINA HONG KONG | 15 | 4♥x | ♠9 | -4 | -11 |
| +1.2 | Round 4 | 🇱🇻 LATVIA | 18 | 4♠ | ♥7 | +1 | +1 |
| +1.1 | Round 3 | 🇮🇱 ISRAEL | 12 | 4♠ | ♥9 | +2 | +2 |
| +1.1 | Round 9 | 🇭🇰 CHINA HONG KONG | 3 | 3NT | ♣7 | = | +2 |
| +1.1 | Round 11 | 🇹🇭 THAILAND | 12 | 1NT | ♥10 | +1 | +0 |
| +0.9 | Round 4 | 🇱🇻 LATVIA | 11 | 2♠ | ♥J | +1 | -6 |
| +0.6 | Round 3 | 🇮🇱 ISRAEL | 1 | 3NT | ♠4 | +1 | +0 |
| +0.6 | Round 4 | 🇱🇻 LATVIA | 15 | 4♥ | ♠K | +1 | +0 |
| +0.5 | Round 3 | 🇮🇱 ISRAEL | 10 | 3NT | ♥4 | -1 | +12 |
| +0.5 | Round 4 | 🇱🇻 LATVIA | 10 | 4♥ | ♦Q | +1 | +0 |
| +0.5 | Round 9 | 🇭🇰 CHINA HONG KONG | 6 | 2NT | ♦Q | = | +0 |
| +0.5 | Round 11 | 🇹🇭 THAILAND | 5 | 3NT | ♠2 | = | +0 |
| +0.4 | Round 3 | 🇮🇱 ISRAEL | 5 | 2♥ | ♦K | -1 | +5 |
| +0.4 | Round 3 | 🇮🇱 ISRAEL | 18 | 1♠ | ♦K | -3 | +10 |
| +0.2 | Round 3 | 🇮🇱 ISRAEL | 9 | 2♦ | ♥A | +1 | +0 |
| +0.1 | Round 1 | 🇺🇸 USA BLUE | 15 | 4♥ | ♠3 | = | +8 |
| +0.1 | Round 1 | 🇺🇸 USA BLUE | 17 | 4♥ | ♦2 | +1 | +0 |
| +0.1 | Round 11 | 🇹🇭 THAILAND | 4 | 4♠ | ♥Q | +1 | -13 |
| +0.1 | Round 11 | 🇹🇭 THAILAND | 6 | 3♠ | ♣A | +1 | +2 |
| -0.1 | Round 1 | 🇺🇸 USA BLUE | 13 | 2♣ | ♠8 | = | -1 |
| -0.1 | Round 1 | 🇺🇸 USA BLUE | 16 | 6♣ | ♦3 | +1 | -11 |
| -0.1 | Round 3 | 🇮🇱 ISRAEL | 17 | 1NT | ♥10 | +1 | +7 |
| -0.2 | Round 3 | 🇮🇱 ISRAEL | 4 | 4♥ | ♦2 | +1 | -1 |
| -0.2 | Round 9 | 🇭🇰 CHINA HONG KONG | 7 | 3♥ | ♠7 | = | +0 |
| -0.2 | Round 9 | 🇭🇰 CHINA HONG KONG | 8 | 5♦ | ♣A | +2 | -4 |
| -0.3 | Round 3 | 🇮🇱 ISRAEL | 13 | 4♥ | ♠K | +3 | -17 |
| -0.3 | Round 4 | 🇱🇻 LATVIA | 9 | 4♠ | ♣A | +1 | +11 |
| -0.6 | Round 3 | 🇮🇱 ISRAEL | 11 | 2♠ | ♥10 | = | +0 |
| -0.7 | Round 9 | 🇭🇰 CHINA HONG KONG | 11 | 2♠ | ♥K | +2 | +6 |
| -0.8 | Round 11 | 🇹🇭 THAILAND | 15 | 3♣ | ♠8 | +1 | +10 |
| -1.0 | Round 11 | 🇹🇭 THAILAND | 14 | 4♠ | ♣10 | -1 | -5 |
| -1.3 | Round 4 | 🇱🇻 LATVIA | 6 | 2♥ | ♠A | = | -1 |
| -1.3 | Round 11 | 🇹🇭 THAILAND | 3 | 3♣ | ♥K | +1 | +0 |
| -1.3 | Round 11 | 🇹🇭 THAILAND | 11 | 3♣ | ♦4 | = | +1 |
| -1.4 | Round 1 | 🇺🇸 USA BLUE | 19 | 5♥ | ♠A | = | +0 |
| -1.7 | Round 9 | 🇭🇰 CHINA HONG KONG | 5 | 2♠ | ♣K | +1 | -1 |
| -1.8 | Round 11 | 🇹🇭 THAILAND | 9 | 3♥ | ♣3 | -2 | -1 |
| -1.9 | Round 9 | 🇭🇰 CHINA HONG KONG | 4 | 3NT | ♠2 | = | +1 |
| -2.1 | Round 1 | 🇺🇸 USA BLUE | 9 | 4♠ | ♠6 | -2 | +0 |
| -2.4 | Round 11 | 🇹🇭 THAILAND | 19 | 5♦ | ♥4 | +2 | -1 |
| -2.5 | Round 9 | 🇭🇰 CHINA HONG KONG | 14 | 6♣ | ♥10 | +1 | +2 |
| -2.6 | Round 3 | 🇮🇱 ISRAEL | 2 | 2♥ | ♠7 | +1 | -7 |
| -2.6 | Round 3 | 🇮🇱 ISRAEL | 7 | 4♠ | ♦Q | +1 | +13 |
| -2.6 | Round 4 | 🇱🇻 LATVIA | 14 | 2♠ | ♥J | +2 | -6 |
| -2.7 | Round 4 | 🇱🇻 LATVIA | 17 | 3NT | ♦5 | -1 | -5 |
| -2.7 | Round 9 | 🇭🇰 CHINA HONG KONG | 2 | 1NT | ♣7 | = | -5 |
| -2.7 | Round 9 | 🇭🇰 CHINA HONG KONG | 16 | 3♠ | ♥A | -1 | -8 |
| -3.5 | Round 4 | 🇱🇻 LATVIA | 20 | 3NT | ♥7 | -1 | -12 |
| -3.7 | Round 4 | 🇱🇻 LATVIA | 8 | 2♣ | ♥J | -2 | -6 |
| -4.0 | Round 3 | 🇮🇱 ISRAEL | 15 | 4♥ | ♣A | +1 | -8 |
| -4.1 | Round 1 | 🇺🇸 USA BLUE | 7 | 7♣ | ♣8 | = | +2 |
| -4.1 | Round 1 | 🇺🇸 USA BLUE | 12 | 3♣ | ♠K | +1 | +0 |
| -4.3 | Round 3 | 🇮🇱 ISRAEL | 8 | 2♦ | ♣A | = | -5 |
| -4.7 | Round 9 | 🇭🇰 CHINA HONG KONG | 20 | 1NT | ♥3 | +1 | -1 |
| -5.6 | Round 1 | 🇺🇸 USA BLUE | 18 | 3NT | ♣7 | -2 | -3 |
| -5.8 | Round 9 | 🇭🇰 CHINA HONG KONG | 10 | 3NT | ♦10 | -2 | -13 |
| -6.6 | Round 4 | 🇱🇻 LATVIA | 5 | 4♠ | ♠5 | +2 | -11 |
| -6.7 | Round 4 | 🇱🇻 LATVIA | 16 | 4♠ | ♥J | +2 | -17 |
| -7.1 | Round 3 | 🇮🇱 ISRAEL | 3 | 4♥ | ♥5 | = | +0 |
| -7.5 | Round 1 | 🇺🇸 USA BLUE | 2 | 5♦x | ♠5 | -4 | -12 |
| -7.7 | Round 1 | 🇺🇸 USA BLUE | 1 | 6♥ | ♠K | +1 | -5 |
| -7.9 | Round 9 | 🇭🇰 CHINA HONG KONG | 12 | 3NT | ♣5 | +1 | -7 |
| -8.3 | Round 3 | 🇮🇱 ISRAEL | 14 | 4♥ | ♦J | -1 | -10 |
| -9.1 | Round 11 | 🇹🇭 THAILAND | 8 | 6♥ | ♣10 | = | +0 |
| -9.3 | Round 9 | 🇭🇰 CHINA HONG KONG | 17 | 6NT | ♥5 | = | +0 |
| -10.1 | Round 1 | 🇺🇸 USA BLUE | 10 | 6NT | ♠K | -2 | -20 |
| -11.0 | Round 1 | 🇺🇸 USA BLUE | 8 | 4♥ | ♥2 | -2 | -11 |
| -11.6 | Round 1 | 🇺🇸 USA BLUE | 20 | 6♠ | ♥3 | -1 | -16 |