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Heersma, Ralf
Current rating: 1760 (#3441)

Grand Prix Brussels 2020 (pioneer) starting rating: 1773
round table opponent (rating) result Δrating
1pioneer 390 Heneghan, Colm (1400) Lost 0-2 -241749
2pioneer 462 Boon, Alexander (1513) Won 2-1 +131762
3pioneer 549 Van Der Burg, Marc (1467) Won 2-0 +131775
4pioneer 435 Bittner, Paul (1608) Won 2-0 +151790
5pioneer 114 Ojeda, Ivan (1549) Won 2-0 +141804
6pioneer 148 Gil, Idris (1554) Lost 1-2 -231781
7pioneer 234 Couzinet, Mickael (1617) Lost 1-2 -211760
top average opponent: 1530record: 4-3 new rating: 1760

Grand Prix Utrecht 2019 (ELD limited) starting rating: 1739
round table opponent (rating) result Δrating
1sealed 229 Sommerlade, Jan Philip (1900) Won 2-0 +211760
2sealed 474 Wulf, Felix (1483) Draw 1-1 -51755
3sealed 350 Dahl, Tina (1674) Won 2-0 +171772
4sealed 165 Milis, Michael (1659) Lost 1-2 -201752
5sealed 317 Annenkov, Mikhail (1472) Won 2-0 +131765
6sealed 203 Lange, Holger (1662) Won 2-1 +161781
7sealed 121 Willems, Daan (1541) Won 2-0 +131794
8sealed 75 Kemp, Erik (1610) Lost 0-2 -211773
top average opponent: 1625record: 5-2-1 new rating: 1773

Grand Prix Prague 2019 (UMA limited) starting rating: 1748
round table opponent (rating) result Δrating
2sealed 983 Nikitopoulos, Dimitris (1482) Won 2-0 +131761
3sealed 479 Lechner, Christian (1803) Won 2-0 +191780
4sealed 62 Glogowski, Piotr (2067) Lost 0-2 -131767
5sealed 287 Zeil, Jean-Julien (1724) Lost 0-2 -191748
6sealed 571 Moller, Jonathan (1533) Won 2-0 +151763
7sealed 356 Dlouhy, Michal (1539) Lost 1-2 -221741
8sealed 456 Kirkebo, Erlend (1663) Draw 1-1 -21739
top average opponent: 1687record: 3-3-1 new rating: 1739

Grand Prix Warsaw 2018 (GRN limited) starting rating: 1749
round table opponent (rating) result Δrating
2sealed 333 Fiorucci, Giacomo (1692) Won 2-0 +171766
3sealed 232 Hovgaard Roth, Rasmus (1645) Lost 0-2 -211745
4sealed 546 Prenom, Benjamin (1519) Won 2-0 +141759
5sealed 393 Litja, Elson (1588) Won 2-0 +151774
6sealed 92 Garcia Marquez, Ivan (1565) Lost 0-2 -221752
7sealed 322 Knipping, Kai (1720) Lost 0-2 -181734
8sealed 364 Murinas, Giedrius (1530) Won 2-1 +141748
top average opponent: 1608record: 4-3 new rating: 1748

Grand Prix Lille 2018 (GRN standard) starting rating: 1744
round table opponent (rating) result Δrating
2standard 32 De Paepe, Emiel (1605) Won 2-1 +151759
3standard 93 Jesus, Marco (1697) Lost 1-2 -191740
4standard 257 Utermark, Janno (1557) Won 2-0 +151755
5standard 203 Komanski, Nicolas (1725) Lost 0-2 -191736
6standard 320 Eveque, Yannice (1516) Won 2-1 +141750
7standard 235 Bach, Wolfgang (1749) Won 2-0 +181768
8standard 129 van Donselaar, Philip (1679) Lost 1-2 -191749
top average opponent: 1647record: 4-3 new rating: 1749

Grand Prix London 2018 (RIX limited) starting rating: 1759
round table opponent (rating) result Δrating
3sealed 207 Pryor, Chris (1539) Lost 0-2 -211738
4sealed 470 Horvath, Tamas (1599) Lost 1-2 -211717
5sealed 571 Lailey, Mark (1715) Won 2-0 +181735
6sealed 335 St. John-hall, Daniel (1540) Lost 1-2 -221713
7sealed 550 Lind, Daniel (1590) Won 2-1 +161729
8sealed 443 Guignabert, Florent (1529) Won 2-0 +151744
top average opponent: 1586record: 3-3 new rating: 1744

Grand Prix Metz 2017 (HOU limited) starting rating: 1550
round table opponent (rating) result Δrating
1sealed 95 Matull, Milan (1685) Won 2-1 +201570
2sealed 282 Sagodira, Melodie (1413) Won 2-0 +151585
3sealed 240 Weinhardt, Denny (1935) Won 2-0 +241609
4sealed 130 Lebrun, Benoit (1846) Won 2-0 +231632
5sealed 48 Lesch, Andreas (1731) Won 2-0 +201652
6sealed 11 Mengucci, Andrea (2037) Won 2-0 +241676
7sealed 18 Tenambergen, Soren (1656) Won 2-0 +181694
8sealed 7 Meyer, Patrick (1920) Won 2-0 +221716
9sealed 2 Hugony, Francesco (1955) Lost 0-2 -141702
10draft 60 Lindgren, Tommi (1827) Lost 0-2 -161686
11draft 60 Bardini, Alain (1914) Won 2-1 +231709
12draft 3 Bonde, Michael (1965) Won 2-1 +221731
13draft 55 Marti, Samuel (2066) Won 2-0 +241755
14draft 160 Duroy, Maxence (1900) Won 2-1 +211776
15draft 3 Delavy, Theophile (1878) Lost 1-2 -171759
top average opponent: 1848record: 12-3 new rating: 1759

Grand Prix Bologna 2017 (AKH limited) starting rating: 1511
round table opponent (rating) result Δrating
1sealed 247 Pichetto, Filippo (1640) Lost 1-2 -161495
2sealed 458 Capecchi, Simone (1483) Won 2-0 +181513
3sealed 500 Encinas, Alejandro (1570) Lost 1-2 -171496
4sealed 644 Fugallo, Alessandro (1426) Draw 1-1 -11495
5sealed 676 Lula, Kevaldo (1487) Won 2-1 +171512
6sealed 534 Zippari, Lino (1522) Won 2-0 +191531
7sealed 386 Lambrich, Benjamin (1700) Lost 1-2 -151516
8sealed 499 Santos, Pedro (1483) Won 2-0 +171533
9sealed 380 Hustler-Wraight, Peter (1464) Won 2-1 +171550
top average opponent: 1531record: 5-3-1 new rating: 1550

Grand Prix Utrecht 2017 (AER standard) starting rating: 1554
round table opponent (rating) result Δrating
1standard 206 Van Luttervelt, Dave (1500) Won 2-1 +171571
2standard 61 Guglielmini, Enrico (1598) Lost 0-2 -181553
3standard 193 Harrison, Anne (1403) Lost 1-2 -201533
4standard 457 Bergerot, Nicolas (1523) Lost 0-2 -191514
5standard 535 Van Der Heide, Stijn Wieger (1463) Won 2-1 +171531
6standard 496 Diekjobst, Lukas (1608) Lost 1-2 -161515
7standard 491 Kelterbaum, Richard (1320) Won 2-0 +141529
8standard 401 Van Der Steen, Niels (1482) Draw 1-1 -11528
9standard 368 Hahn, Maximilian (1538) Lost 0-2 -171511
top average opponent: 1493record: 3-5-1 new rating: 1511

Grand Prix Prague 2017 (AER limited) starting rating: 1574
round table opponent (rating) result Δrating
1sealed 59 Heligr, Jan (1469) Lost 0-2 -201554
top record: 0-1 new rating: 1554

Grand Prix London 2016 (KLD limited) starting rating: 1516
round table opponent (rating) result Δrating
1sealed 871 Thompson, Liam (1477) Lost 0-2 -181498
3sealed 665 Malasidou, Aikaterini (1496) Won 2-0 +181516
4sealed 397 Kelly, Brian [ENG] (1519) Won 2-0 +181534
5sealed 350 Hugony, Francesco (1887) Won 2-1 +241558
6sealed 242 Geffroy, Olivier (1527) Won 2-0 +171575
7sealed 51 Kosma, Ben (1599) Won 2-1 +191594
8sealed 91 Blaas, Jasper (1667) Won 2-1 +191613
9sealed 25 Picciafuochi, Riccardo (1579) Lost 0-2 -191594
10draft 186 Sommen, Pierre (2080) Lost 0-2 -91585
11draft 181 Kotlenko, Alexander (1584) Won 2-0 +181603
12draft 174 Sole Sala, Adria (1520) Won 2-0 +161619
13draft 246 Casar, Gregor (1675) Lost 0-2 -171602
14draft 1 Versari, Matteo (1758) Lost 1-2 -151587
15draft 214 Bornelov, Susanne (1853) Lost 0-2 -131574
top average opponent: 1659record: 8-6 new rating: 1574

Grand Prix Barcelona 2016 (SOI limited) starting rating: 1523
round table opponent (rating) result Δrating
1sealed 370 Canto Chaques, Segismundo (1487) Won 2-0 +181541
2sealed 391 Martos, Antonio (1833) Won 2-0 +231564
3sealed 125 Bausch, Joshua (1803) Won 2-1 +221586
4sealed 154 Deknudt, Thibault (1554) Won 2-0 +181604
5sealed 13 Bratelia, Alexander (1603) Lost 1-2 -181586
6sealed 169 Peille, Clement (1754) Lost 0-2 -151571
7sealed 329 Schmid, Mattia (1462) Lost 1-2 -201551
8sealed 404 Legon, Jeremy (1592) Lost 1-2 -181533
9sealed 483 Kristoffersen, Johannes (1580) Lost 0-2 -171516
top average opponent: 1630record: 4-5 new rating: 1516

Grand Prix Utrecht 2015 (MM2 limited) starting rating: 1486
round table opponent (rating) result Δrating
1sealed 2018 Verbunt, Niels (1500) Won 2-0 +191505
2sealed 2050 Loffeld, Rik (1516) Won 2-0 +181523
3sealed 2190 Waelkens, Wim (1456) Won 2-1 +171540
4sealed 2040 Collinet, Patrick (1582) Won 2-0 +181558
5sealed 2024 Neville, Perry (1539) Won 2-1 +181576
6sealed 2004 Hahn, Fabian (1868) Won 2-1 +231599
7sealed 2004 Aukenthaler, Christoph (1817) Won 2-0 +221621
8sealed 2002 van Driel, Boaz (1737) Lost 1-2 -161605
9sealed 2023 Labahn, Nikolas (1920) Lost 0-2 -121593
10draft 1062 Martinek, Petr (1670) Won 2-0 +191612
11draft 1030 van den Top, Gregory (1605) Lost 0-2 -181594
12draft 1088 Azevedo, Miguel (1568) Lost 0-2 -181576
13draft 1045 Ravenshear, Stuart (1660) Lost 1-2 -171559
14draft 1117 Kaarls, Leonard (1604) Lost 1-2 -171542
15draft 1158 Wilde, Sebastian (1510) Lost 0-2 -191523
top average opponent: 1637record: 8-7 new rating: 1523

Grand Prix Utrecht 2014 (M15 standard) starting rating: 1500
round table opponent (rating) result Δrating
1standard 217 Blokker, Christiaan (1482) Won 2-0 +181518
2standard 135 Petruska, Tomas (1697) Lost 0-2 -151503
3standard 413 Kooij, Arjan (1503) Won 2-0 +181521
4standard 391 Gerecke, Piet (1636) Lost 1-2 -161505
5standard 478 Smid, Ondrej (1473) Lost 0-2 -191486
top average opponent: 1558record: 2-3 new rating: 1486