Yow, Jonathan
Current rating: 1545
Record: 31-27
| Grand Prix Brisbane 2017 (modern) | starting rating: 1587 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 159 | Davies, Greg (1535) | Lost 0-2 | -191568 |
| 4modern | 242 | Burns, David (1518) | Won 2-1 | +171585 |
| 5modern | 177 | Agnello, Matthew (1458) | Lost 0-2 | -201565 |
| 6modern | 168 | Mills, Samuel (1518) | Lost 1-2 | -191546 |
| 7modern | 259 | Kruger, Riley (1506) | Won 2-1 | +171563 |
| 8modern | 241 | Lawler, Jesse (1522) | Lost 0-2 | -181545 |
| top | average opponent: 1510record: 2-4 | new rating: 1545 | ||
| Grand Prix Melbourne 2016 (modern) | starting rating: 1652 | |||
| round | table | opponent (rating) | result | Δrating |
| 3modern | 40 | Elton, Craig (1516) | Lost 0-2 | -201632 |
| 4modern | 265 | Ball, Alexander (1756) | Lost 0-2 | -161616 |
| 5modern | 239 | Camm, Tim (1495) | Lost 1-2 | -201596 |
| 6modern | 394 | Riley, Isaac (1485) | Lost 0-2 | -201576 |
| 7modern | 409 | Morgan, Alastair (1464) | Won 2-0 | +161592 |
| 8modern | 325 | Cramp, Mitchell (1485) | Won 2-0 | +161608 |
| 9modern | 267 | Chan, Dennis (1466) | Lost 1-2 | -211587 |
| top | average opponent: 1524record: 2-5 | new rating: 1587 | ||
| Grand Prix Nagoya 2016 (OGW limited) | starting rating: 1542 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 152 | Fukumoto, Nobuhiro (1423) | Won 2-0 | +161558 |
| 2sealed | 263 | Mizuno, Fumihiro (1524) | Won 2-1 | +171575 |
| 3sealed | 239 | Hariu, Daichi (1503) | Won 2-0 | +171592 |
| 4sealed | 60 | Kasuga, Ryou (1592) | Won 2-1 | +181610 |
| 5sealed | 35 | Ishimaru, Ken (1810) | Won 2-0 | +211631 |
| 6sealed | 8 | Murakami, Satoshi (1592) | Won 2-1 | +171648 |
| 7sealed | 17 | Ueno, Shinichi (1827) | Lost 1-2 | -141634 |
| 8sealed | 53 | Watanabe, Yuuki (1497) | Won 2-0 | +151649 |
| 9sealed | 64 | Munekata, Yuuki (1652) | Lost 0-2 | -181631 |
| 10draft | 108 | Kojima, Daiki (1631) | Won 2-0 | +181649 |
| 11draft | 108 | Yamamoto, Kouhei2453 (1685) | Lost 0-2 | -171632 |
| 12draft | 103 | Sano, Keisuke (1498) | Won 2-1 | +161648 |
| 13draft | 262 | Takamizu, Tomohiro (1769) | Won 2-1 | +201668 |
| 14draft | 248 | Cheng, Tung-Yi (1803) | Lost 0-2 | -161652 |
| top | average opponent: 1629record: 10-4 | new rating: 1652 | ||
| Grand Prix Sydney 2014 (M15 limited) | starting rating: 1574 | |||
| round | table | opponent (rating) | result | Δrating |
| 1sealed | 319 | Phillips, Rory (1443) | Lost 0-2 | -201554 |
| 2sealed | 326 | Altmann, Darrel (1422) | Won 2-1 | +161570 |
| 3sealed | 156 | Cortina, Benjamin II (1497) | Won 2-0 | +161586 |
| 4sealed | 134 | Haley, Ben (1458) | Won 2-1 | +161602 |
| 5sealed | 110 | Johnston, William [AUS] (1501) | Lost 0-2 | -201582 |
| 6sealed | 134 | Gordon, Brent (1527) | Lost 0-2 | -191563 |
| 7sealed | 159 | Estephan, Jessica (1500) | Lost 0-2 | -191544 |
| 8sealed | 170 | Hu, Sean (1476) | Won 2-1 | +171561 |
| 9sealed | 142 | Ridley, Jordan (1503) | Lost 0-2 | -191542 |
| top | average opponent: 1481record: 4-5 | new rating: 1542 | ||
| Grand Prix Melbourne 2014 (BNG standard) | starting rating: 1564 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 100 | Lin, Johnson (1511) | Lost 1-2 | -191545 |
| 4standard | 115 | Danaro, Paul (1428) | Lost 1-2 | -211524 |
| 5standard | 282 | Lim-Hussain, Denzil (1399) | Won 2-1 | +161540 |
| 6standard | 222 | Clarke, Trent (1519) | Lost 1-2 | -181522 |
| 7standard | 222 | Ophel, Lewis (1498) | Won 2-1 | +171539 |
| 8standard | 152 | Tonkin, Jonathon D (1517) | Won 2-1 | +181557 |
| 9standard | 108 | Nash, William (1529) | Won 2-0 | +171574 |
| top | average opponent: 1486record: 4-3 | new rating: 1574 | ||
| Grand Prix Kuala Lumpur 2014 (THS limited) | starting rating: 1540 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 52 | Sparks, Damian (1436) | Lost 1-2 | -191521 |
| 4sealed | 177 | Heng, Chin (1464) | Won 2-1 | +171538 |
| 5sealed | 93 | Cho, Bu-Hong (1731) | Lost 1-2 | -151523 |
| 6sealed | 188 | Sin, Rickson Chye Heng (1519) | Won 2-0 | +181541 |
| 7sealed | 164 | Popitukgul, Sutipong (1742) | Lost 0-2 | -141527 |
| 8sealed | 171 | Chalermtanasak, Pattana (1468) | Won 2-0 | +161543 |
| 9sealed | 125 | Chua, Wei Xiang (1654) | Won 2-1 | +211564 |
| top | average opponent: 1573record: 4-3 | new rating: 1564 | ||
| Grand Prix Hong Kong 2013 (THS limited) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 2sealed | 12 | Lim, Ernest (1667) | Lost 0-2 | -151485 |
| 3sealed | 316 | Cheung, Yuen Kwan (1504) | Won 2-1 | +181503 |
| 4sealed | 198 | Jaruksin, Meta (1487) | Won 2-1 | +181521 |
| 5sealed | 163 | Wang, Sen (1540) | Won 2-1 | +181539 |
| 6sealed | 40 | Shen, Yufei (1518) | Won 2-0 | +181557 |
| 7sealed | 23 | Li, Ming Jian (1489) | Lost 1-2 | -191538 |
| 8sealed | 90 | Wang, Zhu (1690) | Lost 0-2 | -151523 |
| 9sealed | 128 | Deng, Zhi Chao (1519) | Won 2-0 | +171540 |
| top | average opponent: 1552record: 5-3 | new rating: 1540 | ||