KOVACHEV Valentin · VALIO
218rank
+13.2Butler · 100 bds
+0.13per board
±3.6swing
+0.25vs par /bd · #171/518
+0.20adjusted /bd
by round
vs par split: bidding +0.36 · play -0.11
Strength of schedule: opponents averaged +0.07/bd (a tough draw) → opponent-adjusted +0.20/bd
Card play — on target: opening leads 65.2% #479 of 518 · declarer play 75.0% #263 of 517 · defence 71.7% #488 of 518
| vs NT | vs a suit | |
|---|---|---|
| Opening leads | 36.4% (11) | 91.7% (12) |
| Declarer play | 71.4% (14) | 76.9% (26) |
| Defence | 70.6% (17) | 72.4% (29) |
Opening leads by suit led: ♠ 100.0% (5) · ♥ 66.7% (6) · ♦ 60.0% (5) · ♣ 42.9% (7)
vs par by strain: NT -0.49 (37) · a suit +0.68 (63)
vs par by level: part-score -0.07 (40) · game +0.51 (59) · slam -2.00 (1)
By role: declaring +0.11/bd (-1.52 vs par · 54) · defending +0.15/bd (+2.33 vs par · 46)
By vulnerability: vulnerable +0.50/bd (+1.04 vs par · 51) · not vulnerable -0.25/bd (-0.57 vs par · 49)
By round↑ top
| Round | Partner | Opponents | Room | Bds | Butler | Avg | vs par |
|---|---|---|---|---|---|---|---|
| Round 1 | D.Marquardt | J.Pszczola – J.Seamon-Molson | Open | 10 | -6.8 | -0.68 | -2.20 |
| Round 2 | D.Marquardt | T.Gotard – M.Eggeling | Closed | 10 | +3.1 | +0.31 | -0.10 |
| Round 3 | D.Marquardt | DRIMMER MADELYNN – P.Eberman | Closed | 10 | -4.7 | -0.47 | -0.50 |
| Round 4 | D.Marquardt | A.Versace – K.Dufrat | Closed | 10 | +4.4 | +0.44 | +2.30 |
| Round 5 | D.Marquardt | B.Satyanarayana – K.Nadar | Open | 10 | +3.8 | +0.38 | -0.20 |
| Round 6 | D.Marquardt | G.Sherman – P.Martin | Open | 10 | -4.6 | -0.46 | +0.80 |
| Round 7 | D.Marquardt | P.Hamman – H.Lall | Closed | 10 | +15.1 | +1.51 | -1.20 |
| Round 8 | D.Marquardt | Y.Wang – L.Yang | Closed | 10 | +12.7 | +1.27 | +0.70 |
| Round 9 | D.Marquardt | Y.Zhang – J.Liu | Closed | 10 | -14.6 | -1.46 | +0.30 |
| Round 10 | D.Marquardt | S.Cohen – M.Michelin | Closed | 10 | +4.8 | +0.48 | +2.60 |
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 |
|---|---|---|---|---|---|---|---|
| +10.0 | Round 8 | LU DONG | 2 | 3NT | ♥A | +1 | +1 |
| +9.9 | Round 5 | FORMIDABLES | 26 | 3NT | ♣7 | +4 | +12 |
| +7.4 | Round 7 | MARTENS | 14 | 5♣ | ♦7 | -1 | +10 |
| +7.1 | Round 3 | BENNER | 2 | 4♠ | ♦4 | = | +0 |
| +7.1 | Round 8 | LU DONG | 9 | 3NT | ♥Q | -2 | +12 |
| +6.8 | Round 2 | GOTARD | 19 | 4♠ | ♥6 | -3 | +9 |
| +6.1 | Round 4 | ROMAMIAMI | 13 | 3NT | ♠9 | +1 | +11 |
| +6.0 | Round 6 | KAMIL | 5 | 4♠ | ♣A | +2 | +11 |
| +5.4 | Round 10 | ITABASHI | 27 | 3NT | ♦2 | -2 | +11 |
| +4.9 | Round 4 | ROMAMIAMI | 12 | 4♠ | ♥A | -1 | +5 |
| +4.8 | Round 4 | ROMAMIAMI | 15 | 3NT | ♥Q | -2 | +5 |
| +4.7 | Round 1 | PSZCZOLA | 9 | 3NT | ♣7 | +1 | +10 |
| +3.8 | Round 2 | GOTARD | 12 | 4♠ | ♥J | = | +10 |
| +3.4 | Round 5 | FORMIDABLES | 25 | 5♣ | ♦K | = | +5 |
| +3.2 | Round 6 | KAMIL | 1 | 5♦ | ♠A | = | +7 |
| +3.0 | Round 4 | ROMAMIAMI | 19 | 1NT | ♥3 | -1 | +10 |
| +2.9 | Round 8 | LU DONG | 4 | 5♥x | ♣A | -1 | +9 |
| +2.9 | Round 9 | LUCKY BRIDGE | 13 | 3NT | ♥Q | -2 | +8 |
| +2.8 | Round 1 | PSZCZOLA | 6 | 3NT | ♥5 | +2 | +1 |
| +2.8 | Round 5 | FORMIDABLES | 29 | 3NT | ♦10 | = | -1 |
| +2.7 | Round 1 | PSZCZOLA | 3 | 5♦ | ♥A | +1 | -10 |
| +2.6 | Round 7 | MARTENS | 18 | 6♣ | ♦K | = | -2 |
| +2.5 | Round 7 | MARTENS | 15 | 2♥ | ♠K | = | -1 |
| +2.3 | Round 10 | ITABASHI | 30 | 3♠ | ♥3 | -2 | +8 |
| +2.2 | Round 5 | FORMIDABLES | 21 | 2♦ | ♣4 | -1 | +4 |
| +2.0 | Round 7 | MARTENS | 19 | 3♣ | ♦K | -1 | +0 |
| +1.9 | Round 3 | BENNER | 7 | 2♠ | ♥6 | = | +5 |
| +1.9 | Round 6 | KAMIL | 9 | 2♠ | ♥5 | = | +5 |
| +1.8 | Round 10 | ITABASHI | 26 | 4♥ | ♠K | -1 | +5 |
| +1.7 | Round 10 | ITABASHI | 23 | 4♥ | ♠2 | -1 | +12 |
| +1.5 | Round 7 | MARTENS | 13 | 4NT | ♠10 | = | -13 |
| +1.4 | Round 3 | BENNER | 5 | 2♥ | ♦2 | = | +8 |
| +1.2 | Round 4 | ROMAMIAMI | 18 | 3♠ | ♥6 | = | +0 |
| +1.2 | Round 7 | MARTENS | 20 | 1NT | ♦K | +1 | +10 |
| +1.1 | Round 5 | FORMIDABLES | 30 | 3♠x | ♥3 | -2 | +4 |
| +1.1 | Round 7 | MARTENS | 16 | 4♠ | ♦3 | +1 | +0 |
| +1.0 | Round 1 | PSZCZOLA | 10 | 3♦ | ♥6 | -1 | -1 |
| +1.0 | Round 8 | LU DONG | 1 | 3NT | ♦2 | = | -1 |
| +1.0 | Round 10 | ITABASHI | 21 | 2♣ | ♣10 | +2 | +0 |
| +0.8 | Round 5 | FORMIDABLES | 24 | 2♠ | ♣8 | +2 | -6 |
| +0.7 | Round 2 | GOTARD | 16 | 3NT | ♥9 | +1 | +0 |
| +0.7 | Round 3 | BENNER | 6 | 4♥ | ♣8 | +1 | +0 |
| +0.6 | Round 7 | MARTENS | 17 | 2♠ | ♥A | = | -7 |
| +0.4 | Round 9 | LUCKY BRIDGE | 16 | 4♠ | ♣9 | +1 | +0 |
| +0.3 | Round 2 | GOTARD | 18 | 2♦ | ♥K | -1 | +1 |
| +0.2 | Round 5 | FORMIDABLES | 28 | 1NT | ♦10 | -1 | +1 |
| +0.2 | Round 9 | LUCKY BRIDGE | 18 | 3NT | ♣8 | +1 | +0 |
| +0.2 | Round 10 | ITABASHI | 22 | 3♣ | ♣4 | -1 | -1 |
| +0.1 | Round 3 | BENNER | 3 | 3NT | ♥9 | +1 | +0 |
| +0.1 | Round 6 | KAMIL | 6 | 3NT | ♥6 | = | +2 |
| +0.1 | Round 8 | LU DONG | 7 | 2♠ | ♦10 | +3 | +10 |
| +0.0 | Round 8 | LU DONG | 5 | 2♠ | ♦J | +1 | +0 |
| -0.1 | Round 2 | GOTARD | 11 | 3♠ | ♥9 | = | +4 |
| -0.1 | Round 9 | LUCKY BRIDGE | 20 | 1NT | ♦9 | +1 | -1 |
| -0.3 | Round 1 | PSZCZOLA | 4 | 4♠ | ♦4 | +1 | +0 |
| -0.3 | Round 2 | GOTARD | 13 | 4♥ | ♥9 | +2 | +13 |
| -0.3 | Round 9 | LUCKY BRIDGE | 17 | 4♥ | ♦8 | +1 | +10 |
| -0.4 | Round 2 | GOTARD | 20 | 4♥ | ♠J | +1 | +0 |
| -0.4 | Round 4 | ROMAMIAMI | 11 | 1NT | ♦2 | = | -1 |
| -0.5 | Round 6 | KAMIL | 8 | 1NT | ♥4 | +2 | -6 |
| -0.5 | Round 9 | LUCKY BRIDGE | 11 | 4♠ | ♥4 | +1 | +0 |
| -0.7 | Round 8 | LU DONG | 3 | 3NT | ♠2 | -1 | +2 |
| -0.7 | Round 10 | ITABASHI | 29 | 3♦ | ♠2 | -1 | +1 |
| -0.8 | Round 7 | MARTENS | 11 | 1♠ | ♣4 | -2 | +0 |
| -0.8 | Round 10 | ITABASHI | 24 | 2♠ | ♠2 | -1 | -5 |
| -1.2 | Round 4 | ROMAMIAMI | 17 | 3NT | ♥10 | +2 | -1 |
| -1.2 | Round 6 | KAMIL | 2 | 3NT | ♣Q | +1 | -1 |
| -1.3 | Round 3 | BENNER | 9 | 3♦ | ♥10 | = | +1 |
| -1.4 | Round 2 | GOTARD | 14 | 3NT | ♠7 | +3 | -14 |
| -1.4 | Round 9 | LUCKY BRIDGE | 15 | 4♠ | ♦9 | = | -1 |
| -1.6 | Round 4 | ROMAMIAMI | 16 | 2♦ | ♠8 | -1 | +11 |
| -1.7 | Round 10 | ITABASHI | 25 | 4♠ | ♠2 | = | +0 |
| -2.0 | Round 1 | PSZCZOLA | 2 | 4♠ | ♥A | +1 | -1 |
| -2.1 | Round 2 | GOTARD | 17 | 5♣ | ♥K | -1 | -8 |
| -2.3 | Round 5 | FORMIDABLES | 27 | 1NT | ♠Q | +2 | -1 |
| -2.3 | Round 6 | KAMIL | 4 | 3NT | ♥Q | +1 | +0 |
| -2.4 | Round 8 | LU DONG | 8 | 1NT | ♠3 | = | -6 |
| -2.6 | Round 8 | LU DONG | 6 | 3NT | ♠3 | +1 | -10 |
| -2.7 | Round 6 | KAMIL | 3 | 4♥ | ♦10 | +1 | -11 |
| -2.7 | Round 6 | KAMIL | 10 | 2♦ | ♦3 | +3 | -1 |
| -2.7 | Round 8 | LU DONG | 10 | 3♠ | ♠2 | +1 | -10 |
| -2.8 | Round 1 | PSZCZOLA | 1 | 2NT | ♠4 | -2 | +0 |
| -2.8 | Round 1 | PSZCZOLA | 7 | 1♠ | ♦Q | -1 | -5 |
| -2.8 | Round 3 | BENNER | 8 | 3♥ | ♣4 | = | -10 |
| -3.0 | Round 1 | PSZCZOLA | 5 | 4♠ | ♥Q | -1 | -5 |
| -3.0 | Round 7 | MARTENS | 12 | 3♣ | ♦8 | +1 | -9 |
| -3.6 | Round 3 | BENNER | 1 | 3NT | ♣4 | +1 | -7 |
| -3.7 | Round 3 | BENNER | 10 | 2NT | ♠9 | -2 | -3 |
| -3.7 | Round 9 | LUCKY BRIDGE | 19 | 3♥ | ♣4 | +1 | -6 |
| -3.9 | Round 4 | ROMAMIAMI | 14 | 3♥ | ♦Q | = | -6 |
| -4.2 | Round 2 | GOTARD | 15 | 3NT | ♠Q | -1 | -16 |
| -4.2 | Round 5 | FORMIDABLES | 22 | 3NT | ♣7 | = | -10 |
| -4.4 | Round 10 | ITABASHI | 28 | 4♠ | ♦4 | -1 | -5 |
| -4.5 | Round 3 | BENNER | 4 | 5♦ | ♦3 | +1 | +1 |
| -5.2 | Round 9 | LUCKY BRIDGE | 14 | 5♦x | ♥Q | -1 | -5 |
| -6.4 | Round 6 | KAMIL | 7 | 5♣ | ♠4 | = | +2 |
| -6.9 | Round 9 | LUCKY BRIDGE | 12 | 5♠x | ♥A | -2 | -2 |
| -7.1 | Round 1 | PSZCZOLA | 8 | 3NT | ♣6 | -3 | -11 |
| -8.5 | Round 4 | ROMAMIAMI | 20 | 3NT | ♣4 | +1 | -11 |
| -10.1 | Round 5 | FORMIDABLES | 23 | 4♥ | ♣5 | = | -10 |