Groth, Johannes
Current rating: 1558
Record: 71-88-5
- 1999
- 2000
- 2001
- 2013
- 2014
- 2015
- 2016
- 2017
- 2018
- 2019
| Grand Prix Barcelona 2019 (modern) | starting rating: 1476 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 165 | Rubio Perez, Jose Felix (1502) | Won 2-1 | +181494 |
| 2modern | 206 | Fraser, Cameron (1518) | Won 2-1 | +191513 |
| 3modern | 94 | Pla, David (1661) | Lost 0-2 | -151498 |
| 4modern | 214 | Martin Fornieles, Yoel (1485) | Won 2-1 | +171515 |
| 5modern | 255 | Villa Crespo, Manuel (1520) | Won 2-0 | +181533 |
| 6modern | 131 | Lagarde, Antoine (1776) | Won 2-1 | +231556 |
| 7modern | 56 | Schwack, Fabian (1617) | Lost 0-2 | -171539 |
| 8modern | 87 | Rodrigues, Hugo (1857) | Won 2-1 | +241563 |
| 9modern | 99 | Riegler, Moritz (1656) | Won 2-1 | +191582 |
| 10modern | 69 | Delafosse, Quentin (1558) | Won 2-0 | +181600 |
| 11modern | 59 | P, Brian (1673) | Lost 0-2 | -171583 |
| 12modern | 76 | Marrero Negrin, Jaime (1855) | Lost 1-2 | -131570 |
| 13modern | 98 | Soucheiron, Alex (1722) | Lost 0-2 | -151555 |
| 14modern | 109 | Bossy, Gaetan (1817) | Lost 1-2 | -141541 |
| 15modern | 113 | Lindroth, Niklas (1489) | Won 2-1 | +171558 |
| top | average opponent: 1647record: 9-6 | new rating: 1558 | ||
| Grand Prix Prague 2019 (UMA limited) | starting rating: 1472 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 866 | Kuprin, Alexander (1518) | Draw 1-1 | +11473 |
| 3sealed | 1016 | Aidla, Markus (1521) | Won 2-0 | +191492 |
| 4sealed | 283 | Cherfan, Raphael (1537) | Won 2-1 | +191511 |
| 5sealed | 150 | Kusev, Jan (1474) | Lost 1-2 | -191492 |
| 6sealed | 361 | Akerstrom, Janne (1536) | Lost 0-2 | -171475 |
| 7sealed | 512 | Waelkens, Wim (1438) | Lost 0-2 | -191456 |
| 8sealed | 509 | Petrovich, Ivan (1561) | Won 2-0 | +201476 |
| top | average opponent: 1512record: 3-3-1 | new rating: 1476 | ||
| Grand Prix Prague 2018 (modern) | starting rating: 1488 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 363 | Hansen, Marc (1776) | Lost 0-2 | -131475 |
| 3modern | 582 | Kuhna, Daniel (1501) | Lost 0-2 | -181457 |
| 4modern | 895 | Schiavon, Moreno (1313) | Won 2-0 | +161473 |
| 5modern | 453 | Guesnel, Quentin (1504) | Won 2-1 | +181491 |
| 6modern | 465 | Gabriel, Jan [CZE] (1452) | Lost 0-2 | -181473 |
| 7modern | 595 | Ahn, Ei Yong (1485) | Lost 1-2 | -181455 |
| 8modern | 508 | Melone, Rudy (1412) | Won 2-1 | +171472 |
| top | average opponent: 1492record: 3-4 | new rating: 1472 | ||
| Grand Prix Turin 2017 (HOU standard) | starting rating: 1366 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 132 | Pizzi, William (1707) | Won 2-0 | +241390 |
| 3standard | 35 | Jones, Oscar (1776) | Lost 1-2 | -111379 |
| 4standard | 308 | Niedermeier, Christoph (1520) | Lost 1-2 | -161363 |
| 5standard | 297 | Cislaghi, Andrea (1480) | Lost 0-2 | -151348 |
| 6standard | 372 | Lotfy, Mykel (1374) | Won 2-1 | +181366 |
| 7standard | 282 | Savigni, Mirko (1517) | Won 2-0 | +211387 |
| 8standard | 177 | Polizzi, Emmanuel (1455) | Won 2-0 | +191406 |
| 9standard | 148 | Miracca, Alessandro (1609) | Won 2-1 | +221428 |
| 10standard | 134 | Habert, Alexandre (1780) | Lost 0-2 | -121416 |
| 11standard | 143 | Merlo, Michele (1596) | Won 2-1 | +211437 |
| 12standard | 113 | Jakob, Tobias (1597) | Lost 0-2 | -151422 |
| 13standard | 113 | Cassell, Peter (1643) | Won 2-1 | +221444 |
| 14standard | 97 | Pedon, Alessandro (1706) | Won 2-1 | +231467 |
| 15standard | 83 | Theurel, Sebastien (1643) | Won 2-1 | +211488 |
| top | average opponent: 1600record: 9-5 | new rating: 1488 | ||
| Grand Prix Metz 2017 (HOU limited) | starting rating: 1387 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 23 | Brocsko, Arthur (1648) | Lost 0-2 | -141373 |
| 3sealed | 535 | Schaub, Marco (1489) | Lost 0-2 | -151358 |
| 4sealed | 564 | Tiraspolski, Illya (1466) | Won 2-0 | +201378 |
| 5sealed | 526 | Caccia, Alberto (1362) | Lost 1-2 | -191359 |
| 6sealed | 540 | Kelch, Kevin (1436) | Lost 0-2 | -161343 |
| 7sealed | 532 | Rosette, Michael (1611) | Lost 0-2 | -141329 |
| 8sealed | 504 | Dalby, Rasmus (1399) | Won 2-1 | +201349 |
| 9sealed | 439 | Iannello, Andrea (1326) | Won 2-1 | +171366 |
| top | average opponent: 1467record: 3-5 | new rating: 1366 | ||
| Grand Prix Bologna 2017 (AKH limited) | starting rating: 1333 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 423 | Del Rio Hecklau, Gabriel (1451) | Won 2-1 | +201353 |
| 2sealed | 310 | Naujokat, Ricardo (1697) | Won 2-1 | +241377 |
| 3sealed | 21 | Prada, Carmen (1349) | Won 2-1 | +181395 |
| 4sealed | 126 | Longo, Alessandro (1553) | Won 2-1 | +211416 |
| 5sealed | 92 | Zobel, Sebastian (1622) | Lost 0-2 | -151401 |
| 6sealed | 89 | Fafalios, Pavlos (1672) | Won 2-0 | +231424 |
| 7sealed | 80 | Carvalho, Marcio (2260) | Lost 0-2 | -51419 |
| 8sealed | 180 | [anonymous] | Lost 1-2 | -171402 |
| 9sealed | 247 | Riegel, Julian (1556) | Lost 0-2 | -151387 |
| top | average opponent: 1628record: 5-4 | new rating: 1387 | ||
| Grand Prix Prague 2017 (AER limited) | starting rating: 1364 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 385 | Lecercle, Jeremy (1559) | Lost 1-2 | -141350 |
| 2sealed | 616 | Skov, Soeren (1566) | Lost 0-2 | -151335 |
| 3sealed | 898 | Rich, Benjamin (1466) | Won 2-1 | +211356 |
| 4sealed | 810 | Derpmann, Werner (1360) | Lost 1-2 | -181338 |
| 5sealed | 857 | Chmelik, Jaroslav (1520) | Lost 0-2 | -151323 |
| 6sealed | 805 | Hudelmaier, Ralph (1338) | Won 2-1 | +181341 |
| 7sealed | 722 | Faehler, Bjoern (1464) | Lost 1-2 | -151326 |
| 8sealed | 669 | Rudnik, Jan (1569) | Won 2-0 | +221348 |
| 9sealed | 582 | Wickham, Charles (1525) | Lost 0-2 | -151333 |
| top | average opponent: 1485record: 3-6 | new rating: 1333 | ||
| Grand Prix Lille 2016 (modern) | starting rating: 1315 | |||
| round | table | opponent (rating) | result | Δrating |
| 1modern | 528 | Fanlo, Maxime (1500) | Won 2-0 | +211336 |
| 2modern | 196 | Tran, Franck (1518) | Won 2-1 | +211357 |
| 3modern | 377 | Gravina, Michele (1576) | Lost 1-2 | -141343 |
| 4modern | 474 | Aris Girbau, Arnau (1441) | Lost 0-2 | -161327 |
| 5modern | 663 | Pernot, Quentin (1498) | Won 2-0 | +211348 |
| 6modern | 502 | Dauphin, Jean-Jacques (1471) | Won 2-0 | +201368 |
| 7modern | 369 | Wellinger, Serafin (1876) | Lost 0-2 | -91359 |
| 8modern | 365 | Drignon, Thibault (1568) | Won 2-0 | +221381 |
| 9modern | 304 | Henry, Dimitri (1464) | Lost 0-2 | -171364 |
| top | average opponent: 1546record: 5-4 | new rating: 1364 | ||
| Grand Prix Rimini 2016 (EMN standard) | starting rating: 1379 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 79 | Muccini, Marco (1595) | Lost 0-2 | -141365 |
| 2standard | 269 | Svensson, Eric (1440) | Lost 0-2 | -171348 |
| 3standard | 420 | Accarino, Francesco (1462) | Lost 0-1 | -161332 |
| 4standard | 419 | Cogan, Mark (1352) | Lost 0-2 | -171315 |
| top | average opponent: 1462record: 0-4 | new rating: 1315 | ||
| Grand Prix Barcelona 2016 (SOI limited) | starting rating: 1423 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 399 | Dyson, Greg (1559) | Lost 0-1 | -151408 |
| 3sealed | 770 | Nizon, Jerome (1550) | Lost 0-1 | -161392 |
| 4sealed | 915 | Bestard, Kat (1554) | Draw 1-1 | +31395 |
| 5sealed | 820 | Martinez Rojas, Alberto (1479) | Lost 0-2 | -161379 |
| top | average opponent: 1536record: 0-3-1 | new rating: 1379 | ||
| Grand Prix Bologna 2016 (modern) | starting rating: 1421 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 210 | Muccioli, Michele (1518) | Lost 0-2 | -161405 |
| 3modern | 662 | Erni Cassola, Gabriel (1522) | Won 2-1 | +201425 |
| 4modern | 432 | Celik, Ibrahim (1501) | Won 2-1 | +201445 |
| 5modern | 175 | Barbero, Marco (1531) | Lost 0-2 | -171428 |
| 6modern | 398 | Breit, Marco (1560) | Won 2-1 | +211449 |
| 7modern | 276 | Stadlbauer, Siegfried (1461) | Won 2-1 | +181467 |
| 8modern | 272 | Laudati, Pietro (1580) | Lost 1-2 | -161451 |
| 9modern | 293 | Beadell, Chloe (1589) | Won 2-1 | +201471 |
| 10modern | 240 | Mascagni, Lorenzo (1542) | Lost 0-2 | -161455 |
| 11modern | 331 | Rinaldi, Giuseppe (1597) | Lost 1-2 | -161439 |
| 12modern | 298 | Allingham, James (1563) | Lost 0-2 | -161423 |
| top | average opponent: 1542record: 5-6 | new rating: 1423 | ||
| Grand Prix Utrecht 2015 (MM2 limited) | starting rating: 1359 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 2104 | Simon, Assaf (1431) | Won 2-1 | +191378 |
| 3sealed | 2158 | Winkler, Simon (1609) | Won 2-1 | +221400 |
| 4sealed | 2027 | Berle, Kim (1537) | Lost 1-2 | -151385 |
| 5sealed | 2136 | Gorzgen, Fabian (1853) | Won 2-1 | +251410 |
| 6sealed | 2033 | Bergesen, Christian (1517) | Won 2-0 | +201430 |
| 7sealed | 2021 | Marek, Krzysztof (1510) | Lost 0-2 | -161414 |
| 8sealed | 2075 | Rabyska, Ondrej (1641) | Won 2-1 | +221436 |
| 9sealed | 2049 | Christensen, Oscar (1621) | Lost 0-2 | -151421 |
| top | average opponent: 1590record: 5-3 | new rating: 1421 | ||
| Grand Prix Strasbourg 2014 (KTK limited) | starting rating: 1286 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 73 | Goux, Michael (1500) | Won 2-0 | +221308 |
| 2sealed | 160 | Claes, Nick (1470) | Lost 1-2 | -151293 |
| 3sealed | 392 | Guillen, Laura (1500) | Won 2-1 | +211314 |
| 4sealed | 161 | Viac, Venenzio (1518) | Won 2-0 | +221336 |
| 5sealed | 119 | Rizzi, Michael (1412) | Won 2-0 | +191355 |
| 6sealed | 36 | Anteri, Fabrizio (2074) | Lost 0-2 | -61349 |
| 7sealed | 124 | Hurkmans, Bram (1530) | Draw 1-1 | +31352 |
| 8sealed | 146 | Deckert, Michael (1476) | Lost 1-2 | -161336 |
| 9sealed | 146 | Lemaitre, Benoist (1590) | Won 2-0 | +231359 |
| top | average opponent: 1563record: 5-3-1 | new rating: 1359 | ||
| Grand Prix Milan 2014 (JOU limited) | starting rating: 1330 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 172 | Exler, Lukas (1384) | Lost 1-2 | -171313 |
| 2sealed | 372 | Careghini, Alessandro (1428) | Lost 0-2 | -161297 |
| 3sealed | 540 | Ganivet, Jeremy (1466) | Won 2-0 | +211318 |
| 4sealed | 507 | Couvin, Roland (1409) | Lost 0-2 | -161302 |
| 5sealed | 458 | Torasso, Denis (1402) | Lost 1-2 | -161286 |
| top | average opponent: 1418record: 1-4 | new rating: 1286 | ||
| Grand Prix Vienna 2014 (BNG limited) | starting rating: 1357 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 245 | Makulec, Ross (1519) | Lost 0-2 | -151342 |
| 2sealed | 340 | Baptiste, Nicolas (1571) | Lost 0-2 | -141328 |
| 3sealed | 548 | Erenyi, Jakub (1708) | Lost 1-2 | -111317 |
| 4sealed | 560 | Matouskova, Lenka (1330) | Won 2-1 | +181335 |
| 5sealed | 500 | Bornelov, Susanne (1526) | Lost 0-2 | -141321 |
| 6sealed | 472 | Kakonyi, Attila (1441) | Won 2-0 | +201341 |
| 7sealed | 390 | Keller, Stephan (1506) | Lost 0-2 | -151326 |
| 8sealed | 354 | Buhl, Oliver (1451) | Won 2-1 | +201346 |
| 9sealed | 301 | Kovacs, Adam (1468) | Lost 0-2 | -161330 |
| top | average opponent: 1502record: 3-6 | new rating: 1330 | ||
| Grand Prix Vienna 2013 (THS standard) | starting rating: 1424 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 79 | Hauser, Severin (1449) | Lost 1-2 | -171407 |
| 2standard | 419 | Postma, Jan (1482) | Lost 0-1 | -171390 |
| 3standard | 625 | Seibt, Anne (1517) | Lost 1-2 | -161374 |
| 4standard | 690 | Kuhnke, Oliver (1426) | Lost 1-2 | -171357 |
| top | average opponent: 1469record: 0-4 | new rating: 1357 | ||
| Grand Prix Prague 2013 (M14 limited) | starting rating: 1469 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 218 | Grafensteiner, Daniel (1918) | Lost 0-2 | -101459 |
| 2sealed | 531 | Tavoda, Martin (1506) | Lost 0-2 | -171442 |
| 3sealed | 672 | Rietzschel, Tobias (1464) | Won 1-0 | +181460 |
| 4sealed | 522 | Schmitz, Mario (1432) | Lost 0-2 | -181442 |
| 5sealed | 641 | Murphy, Tadhg (1465) | Lost 0-2 | -181424 |
| top | average opponent: 1557record: 1-4 | new rating: 1424 | ||
| Grand Prix Rimini 2013 (M14 limited) | starting rating: 1458 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 123 | Corenstein, Fernando (1561) | Won 2-0 | +201478 |
| 2sealed | 64 | Didier, Nicolas (1500) | Won 2-0 | +181496 |
| 3sealed | 87 | Drapala, Thomas (1738) | Lost 0-2 | -131483 |
| 4sealed | 337 | Roque, Marco (1670) | Lost 1-2 | -151468 |
| 5sealed | 391 | Pinto, Bruno (1508) | Lost 1-2 | -171451 |
| 6sealed | 403 | Mignani, Andrea (1471) | Won 2-0 | +181469 |
| top | average opponent: 1575record: 3-3 | new rating: 1469 | ||
| Grand Prix Vienna 2001 (ODY limited) | starting rating: 1472 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 235 | Havranek, Max (1500) | Won 2-0 | +191491 |
| 2sealed | 89 | Jagereder, Andreas (1518) | Lost 0-2 | -181473 |
| 3sealed | 241 | Bonati, Davide Tolle (1501) | Draw 1-1 | +11474 |
| 4sealed | 182 | Braun, Matthias (1499) | Lost 1-2 | -181456 |
| 5sealed | 223 | Rasch, Marius (1481) | Lost 0-2 | -171439 |
| 6sealed | 217 | Olczak, Dariusz (1465) | Won 2-0 | +181457 |
| 7sealed | 159 | Lencses, Andras (1483) | Lost 0-2 | -171440 |
| 8sealed | 159 | Mirabile, Giulio (1463) | Won 2-0 | +181458 |
| top | average opponent: 1489record: 3-4-1 | new rating: 1458 | ||
| Grand Prix Florence 2000 (extended) | starting rating: 1447 | |||
| round | table | opponent (rating) | result | Δrating |
| 1extended | 20 | CASES, Giorgio (1500) | Won 2-0 | +181465 |
| 2extended | 52 | Guverinzzi, Marc (1518) | Won 2-1 | +191484 |
| 3extended | 57 | Panebianco, Andrea (1499) | Won 2-0 | +191503 |
| 4extended | 40 | Gasparac, Luka (1571) | Lost 1-2 | -171486 |
| 5extended | 74 | Magnani, Matteo (1528) | Draw 1-1 | +11487 |
| 6extended | 65 | Brito, Rafael (1540) | Won 2-1 | +191506 |
| 7extended | 42 | Chiera, Luca (1628) | Lost 1-2 | -161490 |
| 8extended | 71 | Pacifici, Guido (1518) | Lost 0-1 | -181472 |
| top | average opponent: 1538record: 4-3-1 | new rating: 1472 | ||
| Grand Prix Vienna 1999 (extended) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2extended | 24 | Hein, Dirk (1519) | Won 0-0 | +181518 |
| 3extended | 36 | Sykora, Martin (1557) | Lost 0-0 | -171501 |
| 4extended | 99 | Jurkovic, Robert (1436) | Lost 0-0 | -191482 |
| 5extended | 83 | Paulus, Christian (1499) | Lost 0-0 | -181464 |
| 6extended | 115 | Sumi, Miha (1482) | Lost 0-0 | -171447 |
| top | average opponent: 1499record: 1-4 | new rating: 1447 | ||