Teilnehmer – Stand 24. August 2020
| Kategorie | Code | Name | Elo | Verein |
| Open | 23073 | Affentranger Urs | 1435 | Novartis |
| Open | 24165 | Duveen Roman | 1809 | Sorab |
| Open | 17214 | Eichenberger Dominique | 1476 | Birseck |
| Open | 9373 | Eiliczi Stephan | 1258 | Rhy Rheinfelden |
| Open | 7705 | Erb Bernhard | 1792 | Novartis |
| Open | 2547 | Gogniat Michel | 1913 | Birsfelden |
| Open | 22813 | Grabowski Reiner | 1670 | Novartis |
| Open | 5286 | Hartmann Beat | 1496 | Rhy-Rheinfelden |
| Open | 21429 | Heman Emmanuel | 1754 | Therwil |
| Open | 22449 | Imhasly Elias | 1112 | DSSP |
| Open | 12702 | Jans Thomas | 1625 | Neuallschwil |
| Open | 3565 | Jovanovic Slavko | 1555 | Sorab |
| Open | 2748 | Ledermann Wolfgang | 1736 | Therwil |
| Open | 5383 | Lenders Jean-Pierre | 1906 | Novartis |
| Open | 21013 | Lo Presti Vito | 1496 | Therwil |
| Open | 23281 | Locher Helmut | 1827 | Trümmerfeld |
| Open | 11170 | Maier René | 1560 | Roche |
| Open | 23272 | Mohr Jan | 1723 | DSSP |
| Open | 23273 | Mohr Moritz | 1617 | DSSP |
| Open | 22087 | Romer Lukas | 1362 | Trümmerfeld |
| Open | 13742 | Rosebrock Florian | 1630 | SG Basel |
| Open | 4292 | Rothenfluh Marcel | 1555 | Liestal |
| Open | 4069 | Rudin Erich | 1622 | Muttenz |
| Open | 22259 | Schnell Simon | 1648 | DSSP |
| Open | 23069 | Spirig Iri | 1327 | DSSP |
| Open | 2038 | Steck Kurt | 1736 | Therwil |
| Open | 10460 | Tschumi Bernhard | 1647 | Laufental |
| Open | 17824 | Weber Wolfgang | 1510 | Novartis |
| Open | 24406 | Weegen Moritz | 1724 | Trümmerfeld |
| Open | 23476 | Wehrle Maximilian | 1603 | DSSP |
| Open | 8611 | Wehrle Uwe | 2000 | DSSP |
| Open | 23476 | Wehrle Valentin | 1540 | DSSP |