Koehler, Issac
Current rating: 1523
Record: 8-8
| Regional Championships San Diego 2023 (ONE standard) | starting rating: 1544 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 132 | Ekdahl, Nils (1541) | Won 2-1 | +181562 |
| 2standard | 8 | Gotham, CJ (1519) | Won 2-0 | +181580 |
| 3standard | 98 | Simon, Oliver (1536) | Lost 1-2 | -191561 |
| 4standard | 139 | Normandin, Ryan (1520) | Lost 1-2 | -191542 |
| 5standard | 293 | Puglisi, Joseph (1510) | Lost 0-2 | -191523 |
| average opponent: 1525record: 2-3 | new rating: 1523 | |||
| Regional Championships Atlanta 2022 (pioneer) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 1054 | Farrell, Bret (1804) | Won 2-1 | +231523 |
| 2pioneer | 1001 | Porr, Zachary (1560) | Won 2-1 | +191542 |
| 3pioneer | 1079 | Chen, Jeffrey (1699) | Won 2-0 | +211563 |
| 4pioneer | 1032 | Jakobovits, Luca (1445) | Lost 1-2 | -201543 |
| 5pioneer | 1119 | Patlis, Kevin (1543) | Won 2-0 | +181561 |
| 6pioneer | 1039 | Rios, Jose E (1605) | Lost 0-2 | -171544 |
| 7pioneer | 1110 | Mancinelli, Matthew (1664) | Won 2-1 | +201564 |
| 8pioneer | 1061 | Lee, Russell (1576) | Lost 0-2 | -181546 |
| 9pioneer | 1093 | Bursavich, Austin (2117) | Won 2-0 | +271573 |
| 10pioneer | 1074 | Bresett, John (1737) | Lost 0-2 | -151558 |
| 11pioneer | 1089 | Marquez, Adrian (1790) | Lost 0-2 | -141544 |
| average opponent: 1685record: 6-5 | new rating: 1544 | |||