Ionov, Andrei
Current rating: 1502
Record: 19-23
| Regional Championships Atlanta 2022 (pioneer) | starting rating: 1404 | |||
| round | table | opponent (rating) | result | Δrating |
| 1pioneer | 1077 | Friedman, Gene (1664) | Lost 0-2 | -141390 |
| 2pioneer | 1400 | Kane, Will (1527) | Won 2-1 | +211411 |
| 3pioneer | 1327 | Linn, Ricky (1733) | Won 2-0 | +241435 |
| 4pioneer | 1073 | Karamchandani, Arya (1663) | Lost 0-2 | -141421 |
| 5pioneer | 1262 | Durward, Caleb (1805) | Won 2-1 | +241445 |
| 6pioneer | 1175 | Brown, Nicolas (1456) | Won 2-1 | +181463 |
| 7pioneer | 1129 | Rucker, Darren (1731) | Won 2-1 | +231486 |
| 8pioneer | 1088 | Higgins, Aaron (1493) | Won 2-1 | +181504 |
| 9pioneer | 1049 | Thompson, William (1595) | Lost 0-2 | -161488 |
| 10pioneer | 1056 | Cruz, Lucas (1889) | Won 2-1 | +251513 |
| 11pioneer | 1053 | Daniels, Sabastian (1667) | Lost 0-2 | -151498 |
| 12pioneer | 1085 | Carroll, Lindsey (1566) | Won 2-1 | +191517 |
| 13pioneer | 1054 | Zhang, Rei (1689) | Lost 1-2 | -151502 |
| top | average opponent: 1652record: 8-5 | new rating: 1502 | ||
| Grand Prix Hartford 2018 (modern) | starting rating: 1414 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 376 | Ruiz, Josh (1518) | Lost 0-2 | -171397 |
| 3modern | 630 | Hoten, CJ (1324) | Lost 0-2 | -191378 |
| 4modern | 644 | Spinella, Philip (1464) | Won 2-1 | +201398 |
| 5modern | 654 | Quirke, Ethan (1456) | Lost 0-2 | -171381 |
| 6modern | 575 | Falco, Katie (1483) | Won 2-0 | +201401 |
| 7modern | 493 | Rast, Arthur (1456) | Won 2-1 | +191420 |
| 8modern | 384 | Shi, Jiaan (1534) | Lost 1-2 | -161404 |
| top | average opponent: 1462record: 3-4 | new rating: 1404 | ||
| Grand Prix Amsterdam 2017 (AKH standard) | starting rating: 1459 | |||
| round | table | opponent (rating) | result | Δrating |
| 2standard | 99 | Kovpak, Andriy (1505) | Lost 1-2 | -171442 |
| 3standard | 489 | Hocedez, Corentin (1545) | Won 2-1 | +201462 |
| 4standard | 367 | Schweizer, Michael (1669) | Lost 0-2 | -141448 |
| 5standard | 342 | Stock, Marc (1493) | Lost 1-2 | -181430 |
| 6standard | 456 | Kalter, Chris (1439) | Lost 1-2 | -171413 |
| 7standard | 416 | Huizinga, Sander (1474) | Won 2-0 | +191432 |
| 8standard | 343 | Dunand, Romain (1427) | Lost 1-2 | -181414 |
| top | average opponent: 1507record: 2-5 | new rating: 1414 | ||
| Grand Prix Chiba 2016 (legacy) | starting rating: 1481 | |||
| round | table | opponent (rating) | result | Δrating |
| 1legacy | 36 | Taniguchi, Yu (1488) | Won 2-0 | +181499 |
| 2legacy | 358 | Rowe, John (1574) | Won 2-0 | +191518 |
| 3legacy | 89 | Ishino, Katsunori (1555) | Won 2-0 | +191537 |
| 4legacy | 44 | Yamamoto, Kentaro (2125) | Lost 1-2 | -81529 |
| 5legacy | 499 | Suzuki, Shouta (1704) | Lost 0-2 | -151514 |
| 6legacy | 386 | Fukuda, Masahiro (1505) | Lost 0-2 | -181496 |
| 7legacy | 817 | Tazawa, Kazuho (1477) | Lost 0-2 | -191477 |
| 8legacy | 757 | Kudou, Kouji (1471) | Lost 0-2 | -181459 |
| top | average opponent: 1612record: 3-5 | new rating: 1459 | ||
| Grand Prix Moscow 2012 (M13 limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 271 | Chekhonin, Roman A (1500) | Lost 1-2 | -181482 |
| 2sealed | 253 | Shatalin, Anton (1461) | Lost 0-2 | -181464 |
| 3sealed | 377 | Kazmin, Oleg (1464) | Won 2-1 | +181482 |
| 4sealed | 335 | Danilov, Mihail (1482) | Won 2-0 | +181500 |
| 5sealed | 271 | Surovegin, Andrew (1501) | Won 2-0 | +181518 |
| 6sealed | 187 | Silvestrov, Alexander (1516) | Lost 0-2 | -181500 |
| 7sealed | 217 | Tveretinov, Roman (1454) | Lost 1-2 | -191481 |
| top | average opponent: 1483record: 3-4 | new rating: 1481 | ||