Ferrer, John Reuben
Current rating: 1699
Record: 24-12-1 (GP) / 3-5 (professional)
| Players Tour Nagoya 2020 (pioneer) | starting rating: 1737 | |||
| round | table | opponent (rating) | result | Δrating |
| 1draft | 17 | Randeni, Harshana (1603) | Won 2-1 | +151752 |
| 2draft | 68 | van Eeden, Jacques (1771) | Lost 1-2 | -171735 |
| 3draft | 56 | Soh, Joe (2163) | Won 2-0 | +251760 |
| 4pioneer | 23 | Yanaseko, Kentarou (1659) | Lost 0-2 | -201740 |
| 5pioneer | 49 | Boku, Takashi (1620) | Won 2-0 | +161756 |
| 6pioneer | 38 | Nakajima, Chikara (1740) | Lost 1-2 | -181738 |
| 7pioneer | 54 | John, Julian (1792) | Lost 1-2 | -171721 |
| 8pioneer | 54 | Shibata, Takahiro (1492) | Lost 1-2 | -221699 |
| top | average opponent: 1730record: 3-5 | new rating: 1699 | ||
| Grand Prix Yokohama 2019 (modern) | starting rating: 1546 | |||
| round | table | opponent (rating) | result | Δrating |
| 2modern | 317 | Oshima, Masanori (1518) | Won 2-0 | +171563 |
| 3modern | 302 | Takase, Ryousuke (1600) | Won 2-0 | +191582 |
| 4modern | 210 | Oono, Takahiro (1524) | Won 2-0 | +171599 |
| 5modern | 78 | Iwazaki, Yuuta (1901) | Lost 1-2 | -131586 |
| 6modern | 268 | Bonet Espinosa, Dante (1561) | Won 2-0 | +181604 |
| 7modern | 145 | Hagiwara, Yuichi (1552) | Won 2-0 | +171621 |
| 8modern | 86 | Kyogoku, Kyosuke (1706) | Won 2-0 | +201641 |
| 9modern | 40 | Sim, Soohong (1611) | Won 2-1 | +171658 |
| 10modern | 31 | Noine, Kazuhiro (1849) | Won 2-0 | +211679 |
| 11modern | 8 | Ishizuki, Takuya (1597) | Won 2-1 | +171696 |
| 12modern | 5 | Suzuki, Takahito (1705) | Won 2-0 | +181714 |
| 13modern | 5 | Harada, Dampei (1828) | Lost 0-2 | -161698 |
| 14modern | 13 | Hori, Masataka (1876) | Won 2-1 | +211719 |
| 15modern | 8 | Iwasaki, Daisuke (1689) | Won 2-0 | +181737 |
| top | average opponent: 1680record: 12-2 | new rating: 1737 | ||
| Grand Prix Kuala Lumpur 2016 (KLD standard) | starting rating: 1553 | |||
| round | table | opponent (rating) | result | Δrating |
| 3standard | 112 | Beh, Edison (1435) | Lost 0-0 | -201533 |
| 4standard | 191 | Leong, Pou Man (1441) | Lost 0-2 | -201513 |
| 5standard | 221 | Lim, Meng Fu (1501) | Won 2-0 | +181531 |
| 6standard | 157 | Ye, Alan (1517) | Won 1-0 | +181549 |
| 7standard | 103 | Taki, Masaya (1515) | Won 2-1 | +171566 |
| 8standard | 80 | Maikhu, Suripat (1495) | Draw 1-1 | -11565 |
| 9standard | 74 | Wong, Wilfred (1507) | Lost 0-2 | -191546 |
| top | average opponent: 1487record: 3-3-1 | new rating: 1546 | ||
| Grand Prix Hong Kong 2015 (ORI limited) | starting rating: 1560 | |||
| round | table | opponent (rating) | result | Δrating |
| 3sealed | 123 | Willems, Sjoerd (1672) | Lost 0-2 | -161544 |
| 4sealed | 209 | Tse, Kevin Chi Ho (1725) | Won 2-0 | +211565 |
| 5sealed | 169 | Chan, Andy (1629) | Lost 1-2 | -171548 |
| 6sealed | 47 | Liao, yufan (1491) | Won 2-0 | +171565 |
| 7sealed | 105 | Yasooka, Shota (1950) | Won 2-1 | +251590 |
| 8sealed | 84 | Lai, Pak Yin (1693) | Lost 1-2 | -161574 |
| 9sealed | 105 | Noine, Kazuhiro (1448) | Lost 0-2 | -211553 |
| top | average opponent: 1658record: 3-4 | new rating: 1553 | ||
| Grand Prix Manila 2015 (KTK standard) | starting rating: 1500 | |||
| round | table | opponent (rating) | result | Δrating |
| 1standard | 233 | Salem, Josep S (1500) | Won 2-0 | +181518 |
| 2standard | 284 | Taneza, Dexter Allan D (1501) | Won 2-1 | +181536 |
| 3standard | 122 | Villanueva, Raymond H (1536) | Lost 1-2 | -181518 |
| 4standard | 206 | Kumar, Mylen (1451) | Won 2-0 | +161534 |
| 5standard | 115 | Matriano, Krister Marti M (1591) | Lost 0-2 | -161518 |
| 6standard | 292 | Ikawa, Yoshihiko (1867) | Lost 1-2 | -121506 |
| 7standard | 360 | Zafra, Jaf (1497) | Won 2-1 | +171523 |
| 8standard | 301 | Talana, James Francis (1533) | Won 2-0 | +191542 |
| 9standard | 153 | Panizales, Rubin (1536) | Won 2-1 | +181560 |
| top | average opponent: 1557record: 6-3 | new rating: 1560 | ||