Ma, Kouming
Current rating: 1465
Record: 14-19
| Grand Prix Sacramento 2018 (M19 limited) | starting rating: 1475 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 205 | LaPlaca, Martin (1470) | Won 2-0 | +181493 |
| 2sealed | 58 | Maxey, Scott (1456) | Won 2-1 | +171510 |
| 3sealed | 4 | Sciesinski, Marcin (1560) | Lost 0-2 | -171493 |
| 4sealed | 331 | Hausman-Cohen, Ari (1680) | Lost 0-2 | -151478 |
| 5sealed | 385 | Hu, Shengling (1732) | Lost 0-2 | -131465 |
| top | average opponent: 1579record: 2-3 | new rating: 1465 | ||
| Grand Prix Las Vegas 2017 (limited) (AKH limited) | starting rating: 1498 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 177 | Kihara, Atsuki (1663) | Lost 1-2 | -151483 |
| 4sealed | 738 | Vandermeyden, Michael (1648) | Won 2-0 | +211504 |
| 5sealed | 311 | Romero, Henry (1863) | Lost 1-2 | -121492 |
| 6sealed | 444 | Laquian, Joshua (1516) | Lost 0-2 | -171475 |
| top | average opponent: 1672record: 1-3 | new rating: 1475 | ||
| Grand Prix Los Angeles 2016 (modern) | starting rating: 1499 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 149 | Feil, Derek (1762) | Won 2-1 | +231522 |
| 4modern | 224 | Freeman, Marcelino (1827) | Lost 1-2 | -121510 |
| 5modern | 416 | Jafari, Keyan (1664) | Won 2-0 | +201530 |
| 6modern | 228 | ReCasino, Matthew (1558) | Won 2-1 | +191549 |
| 7modern | 161 | Maglunog, Raymond (1492) | Lost 1-2 | -191530 |
| 8modern | 163 | Ho, Lan (1752) | Lost 0-2 | -141516 |
| 9modern | 444 | Bustios, Anthony (1538) | Lost 1-2 | -181498 |
| top | average opponent: 1656record: 3-4 | new rating: 1498 | ||
| Grand Prix Las Vegas 2015 (2) (MM2 limited) | starting rating: 1531 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 90 | Davoudi, Mani (1826) | Lost 0-2 | -131518 |
| 4sealed | 149 | LaPierre, Jace (1520) | Won 2-0 | +181536 |
| 5sealed | 107 | Walters, Noah (1625) | Lost 0-2 | -161520 |
| 6sealed | 93 | Ramirez, Michael (1389) | Lost 1-2 | -211499 |
| top | average opponent: 1590record: 1-3 | new rating: 1499 | ||
| Grand Prix Orlando 2014 (KTK limited) | starting rating: 1495 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 47 | Brissette, Philip (1535) | Won 2-1 | +191514 |
| 4sealed | 67 | Spezzo, Vincent (1523) | Won 2-0 | +181532 |
| 5sealed | 20 | Kingsley, James W (1658) | Lost 0-2 | -161516 |
| 6sealed | 86 | Woods, Conley (1881) | Won 2-0 | +251541 |
| 7sealed | 74 | Handy, Carmen (1479) | Won 2-1 | +161557 |
| 8sealed | 30 | Cifka, Stanislav (2107) | Lost 0-2 | -81549 |
| 9sealed | 41 | Byrd, Mark-Antony (1574) | Lost 1-2 | -181531 |
| top | average opponent: 1680record: 4-3 | new rating: 1531 | ||
| Grand Prix Sacramento 2014 (THS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 1240 | Santiago, Marc (1500) | Won 2-0 | +181518 |
| 2sealed | 1075 | MacDonald, Jason (1465) | Won 2-0 | +171535 |
| 3sealed | 1030 | Jackson, Jacob (1481) | Won 2-1 | +171552 |
| 4sealed | 1016 | Watts, Timothy (1502) | Lost 0-2 | -191533 |
| 5sealed | 1078 | McShea, Kevin (1541) | Lost 1-2 | -181515 |
| 6sealed | 1104 | Moreno, Eduardo (1389) | Lost 0-2 | -201495 |
| top | average opponent: 1480record: 3-3 | new rating: 1495 | ||