Pietron, Krzysztof
Current rating: 1570
Record: 21-17-1
| Grand Prix Amsterdam 2017 (AKH standard) | starting rating: 1575 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 211 | Crann, Peter (1449) | Won 2-0 | +161591 |
| 2standard | 126 | Kalter, Phil (1729) | Won 2-0 | +211612 |
| 3standard | 6 | Wingren, Calle (1427) | Won 2-0 | +141626 |
| 4standard | 16 | Schmittbuettner, Markus (1556) | Lost 1-2 | -191607 |
| 5standard | 108 | Strotmeyer, Thomas (1578) | Lost 0-2 | -191588 |
| 6standard | 233 | Seidl, Julius (1576) | Lost 1-2 | -181570 |
| 7standard | 386 | Pass, Kevin (1563) | Draw 1-1 | 01570 |
| top | average opponent: 1554record: 3-3-1 | new rating: 1570 | ||
| Grand Prix Warsaw 2016 (KLD standard) | starting rating: 1567 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 76 | Roels, Markus (1484) | Won 2-0 | +161583 |
| 2standard | 98 | Tvrznik, Pavel (1559) | Lost 0-2 | -181565 |
| 3standard | 438 | Stefanski, Mateusz (1498) | Won 2-0 | +171582 |
| 4standard | 260 | Massmann, Marcel (1528) | Lost 0-2 | -191563 |
| 5standard | 393 | Kalamarz, Lukasz (1414) | Won 2-1 | +151578 |
| 6standard | 189 | Smet, Roald (1654) | Won 2-1 | +191597 |
| 7standard | 145 | Kazantcev, Ilia (1535) | Won 2-0 | +171614 |
| 8standard | 90 | Stefes, Martin (1508) | Lost 1-2 | -201594 |
| 9standard | 182 | Kowalczuk, Wojciech (1541) | Lost 0-2 | -191575 |
| top | average opponent: 1524record: 5-4 | new rating: 1575 | ||
| Grand Prix Prague 2009 (M10 limited) | starting rating: 1515 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 535 | Danilkevicius, Aivaras (1459) | Won 2-0 | +171532 |
| 2sealed | 511 | Pfefferkorn, Jakob (1484) | Won 2-0 | +171549 |
| 3sealed | 572 | Kummer, Tomas (1532) | Won 2-1 | +181567 |
| 4sealed | 594 | Ogrizek, Matjaz (1575) | Lost 0-2 | -181549 |
| 5sealed | 663 | Gasser, Jakob (1579) | Won 2-1 | +181567 |
| 6sealed | 586 | Mostek, Sten-Magnus (1614) | Lost 1-2 | -171550 |
| 7sealed | 574 | Kolz, Benjamin (1479) | Won 2-1 | +171567 |
| 8sealed | 550 | Vragovic, Predrag (1539) | Won 2-0 | +171584 |
| 9sealed | 530 | Cech, Vit (1614) | Lost 0-2 | -171567 |
| top | average opponent: 1542record: 6-3 | new rating: 1567 | ||
| Grand Prix Brighton 2009 (M10 limited) | starting rating: 1501 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 51 | McIntosh, Stephen (1543) | Lost 1-2 | -181483 |
| 3sealed | 260 | Waelkens, Wim (1508) | Lost 0-2 | -171466 |
| 4sealed | 303 | Von Kalkstein, Christian (1580) | Won 2-0 | +201486 |
| 5sealed | 250 | Perez Paez, Oscar (1654) | Won 2-0 | +211507 |
| 6sealed | 184 | van den Brink, Peter (1638) | Won 2-0 | +201527 |
| 7sealed | 147 | Loubser, Pieter (1496) | Won 2-0 | +181545 |
| 8sealed | 83 | Ferreira, Narciso (1709) | Lost 1-2 | -151530 |
| 9sealed | 90 | Komanicky, Vladimir (1697) | Lost 1-2 | -151515 |
| top | average opponent: 1603record: 4-4 | new rating: 1515 | ||
| Grand Prix Warsaw 2001 (Invasion block) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1block | 63 | Widuch, Piotr (1535) | Lost 0-2 | -171483 |
| 2block | 128 | Pork, Kristjan (1485) | Won 2-1 | +181501 |
| 3block | 102 | Urbanec, Jan (1483) | Won 2-0 | +171518 |
| 4block | 66 | Kasinski, Tomas (1518) | Won 2-0 | +181536 |
| 5block | 63 | Arcimovic, Martin (1518) | Lost 1-2 | -181518 |
| 6block | 82 | Payen, Laurent (1550) | Lost 1-2 | -171501 |
| top | average opponent: 1515record: 3-3 | new rating: 1501 | ||