Benjamin de Costa
| Name | City | CFC Id | CFC Expiry | Regular Rating | Regular High | Quick Rating | Quick High | FIDE Id |
|---|---|---|---|---|---|---|---|---|
| de Costa, Benjamin | Toronto, ON | 156465 | 2023-12-09 | 1845 | 1845 | 1504 | 1504 | 2653869 |
| End Date | Type | Games Played | Score | Old Rating | Perf Rating | New Rating | Highest Rating | ||
|---|---|---|---|---|---|---|---|---|---|
| 2025 Hart House Summer Rapid Crown | 2025-07-06 | Q | 6 | 2 | 1394 | 1746 | 1504 | 1504 | |
| SCC 2024 Club Ch Over 1600 | 2024-05-23 | R | 2 | 3 | 1739 | 1780 | 1742 | 1744 | |
| SCC 2024 Winter Swiss Over 1600 | 2024-02-14 | R | 3 | 2 | 1744 | 1694 | 1739 | 1744 | |
| SCC Jack Frost Over1600 | 2024-01-25 | R | 2 | 3.5 | 1702 | 2222 | 1744 | 1744 | |
| SCC Falling Leaves Over 1600 | 2023-11-30 | R | 2 | 2 | 1702 | 1776 | 1702 | 1702 | |
| SCC Howard Ridout Memorial O1600 | 2023-10-19 | R | 4 | 2.5 | 1618 | 1898 | 1702 | 1702 | |
| 2023 Excelsior August U2000 | 2023-08-13 | R | 4 | 2 | 1626 | 1579 | 1618 | 1626 | |
| 2023 Canadian Junior U1800 | 2023-07-09 | R | 8 | 4.5 | 1492 | 1687 | 1626 | 1626 | |
| SCC Spring into Summer Under 1600 | 2023-06-29 | R | 4 | 4 | 1461 | 1640 | 1492 | 1521 | |
| Hart House Holidays Open - U1600 | 2022-12-11 | R | 5 | 2.5 | 1494 | 1331 | 1461 | 1521 | |
| SCC Winter Swiss U1800 | 2020-03-12 | R | 2 | 1.5 | 1504 | 1393 | 1494 | 1521 | |
| SCC Jack Frost U1800 | 2020-02-13 | R | 1 | 3 | 1492 | 1795 | 1504 | 1521 | |
| Falling Leaves Swiss U1800 | 2019-12-12 | R | 3 | 2.5 | 1521 | 1250 | 1492 | 1521 | |
| Guelph Fall ProAm U1700 | 2019-11-03 | R | 4 | 3.5 | 1461 | 1653 | 1521 | 1521 | |
| SCC Howard Ridout Memorial U1800 | 2019-10-24 | R | 6 | 3 | 1470 | 1433 | 1461 | 1470 | |
| NAYCC 2019 U14 Open | 2019-08-20 | R | 9 | 3.5 | 1332 | 1686 | 1470 | 1470 | |
| SCC Spring Into Summer JU1400 | 2019-06-27 | R | 4 | 4 | 1284 | 1493 | 1332 | 1421 | |
| Scarborough CC Championship (U1800) | 2019-05-23 | R | 2 | 4.5 | 1232 | 1903 | 1284 | 1421 | |
| SCC Winter Swiss - U1400 | 2019-03-28 | R | 2 | 3 | 1225 | 1326 | 1232 | 1421 | |
| SCC Jack Frost - u1400 juniors | 2019-02-14 | R | 2 | 3.5 | 1216 | 1329 | 1225 | 1421 | |
| SCC Falling Leaves U1400 - Juniors | 2018-12-13 | R | 5 | 3 | 1261 | 1037 | 1216 | 1421 | |
| SCC Howard Ridout Swiss - U1400 | 2018-10-25 | R | 4 | 3.5 | 1279 | 1171 | 1261 | 1421 | |
| SCC Spring Into Summer - U1400 Jrs | 2018-06-28 | R | 5 | 4 | 1263 | 1304 | 1279 | 1421 | |
| SCC U1800 Reserves | 2018-05-24 | R | 4 | 3.5 | 1272 | 1165 | 1263 | 1421 | |
| SCC Winter Swiss - U1400 | 2018-03-29 | R | 1 | 3 | 1271 | 1092 | 1272 | 1421 | |
| Greater Toronto Chess League 2018 | 2018-03-20 | R | 2 | 1 | 1246 | 1749 | 1271 | 1421 | |
| JackFrost U1400 | 2018-02-15 | R | 5 | 4 | 1263 | 1158 | 1246 | 1421 | |
| SCC Falling Leaves U1400 Juniors | 2017-12-14 | R | 7 | 4.5 | 1289 | 1193 | 1263 | 1421 | |
| SCC Howard Ridout - U1400 Junior | 2017-10-26 | R | 5 | 4.5 | 1304 | 1169 | 1289 | 1421 | |
| SCC Spring into Summer U1800 | 2017-06-29 | R | 3 | 1.5 | 1315 | 1217 | 1304 | 1421 | |
| SCC Championship - Under 1800 | 2017-05-25 | R | 3 | 2.5 | 1363 | 946 | 1315 | 1421 | |
| SCC Winter Swiss U1800 | 2017-03-30 | R | 2 | 2.5 | 1346 | 1552 | 1363 | 1421 | |
| SCC Jack Frost U1800 | 2017-02-16 | R | 3 | 1 | 1367 | 1191 | 1346 | 1421 | |
| SCC Falling Leaves Swiss U1400 | 2016-12-15 | R | 2 | 2 | 1412 | 661 | 1367 | 1421 | |
| Guelph Fall ProAm U1600 | 2016-11-06 | R | 4 | 3.5 | 1405 | 1453 | 1412 | 1421 | |
| SCC Howard Ridout U1800 | 2016-10-27 | R | 5 | 2.5 | 1416 | 1362 | 1405 | 1421 | |
| CYCC 2016 U10 Open | 2016-07-08 | R | 7 | 4.5 | 1394 | 1413 | 1416 | 1421 | |
| SCC Spring into Summer U1400 | 2016-06-30 | R | 4 | 3.5 | 1404 | 1289 | 1394 | 1421 | |
| Scarborough Club Ch U1800 | 2016-05-19 | R | 6 | 5 | 1389 | 1384 | 1404 | 1421 | |
| OYCC 2016 U10 | 2016-05-15 | R | 5 | 3.5 | 1395 | 1274 | 1389 | 1421 | |
| SCC Winter Swiss U1800 | 2016-03-24 | R | 3 | 1.5 | 1402 | 1342 | 1395 | 1421 | |
| 2016 Jack Frost U1800 | 2016-02-11 | R | 2 | 1.5 | 1421 | 1182 | 1402 | 1421 | |
| Falling Leaves U1800 | 2015-12-18 | R | 6 | 3.5 | 1336 | 1517 | 1421 | 1421 | |
| 2015 Howard Ridout Mem U1400 | 2015-10-29 | R | 6 | 5.5 | 1338 | 1326 | 1336 | 1338 | |
| 2015 Aurora Fall Open U1600 | 2015-10-05 | R | 5 | 2 | 1294 | 1405 | 1338 | 1338 | |
| CYCC2015 U10 Open | 2015-07-09 | R | 7 | 4.5 | 1216 | 1402 | 1294 | 1294 | |
| 2015 Spring into Summer U1400 | 2015-06-25 | R | 4 | 3 | 1229 | 1126 | 1216 | 1235 | |
| OYCC 2015 Under 10 Open | 2015-05-24 | R | 5 | 3 | 1235 | 1147 | 1229 | 1235 | |
| 2015 SCC Club Championship | 2015-05-21 | R | 5 | 3.5 | 1148 | 1461 | 1235 | 1235 | |
| NYYCC May U10 | 2015-05-16 | Q | 5 | 4.5 | 0 | 1212 | (1212) | (5 g) | |
| Scarborough Winter Swiss U1400 | 2015-03-26 | R | 4 | 3.5 | 1172 | 987 | 1148 | 1184 | |
| Aurora Spring Open 2015 U1300 | 2015-03-15 | R | 4 | 3 | 1184 | 1117 | 1172 | 1184 | |
| 2015 Jack Frost U1400 | 2015-02-12 | R | 5 | 4.5 | 1072 | 1279 | 1184 | 1184 | |
| Guelph Winter ProAm U1600 | 2015-02-08 | R | 5 | 2 | 1048 | 1196 | 1072 | 1098 | |
| Falling Leaves U1400 | 2014-12-18 | R | 5 | 3.5 | 1065 | 977 | 1048 | 1098 | |
| 2014 Howard Ridout U1400 | 2014-10-30 | R | 4 | 4.5 | 1028 | 1224 | 1065 | 1098 | |
| Aurora Fall Open 2014 - U1300 | 2014-10-06 | R | 1 | 1 | 1012 | 1404 | 1028 | 1098 | |
| 2014 Toronto Labour Day U1300 | 2014-09-01 | R | 6 | 2 | 1062 | 850 | 1012 | 1098 | |
| 2014 Canadian Amateur Open Rookie | 2014-08-04 | R | 6 | 4 | 1057 | 1078 | 1062 | 1098 | |
| CJCE CYCC 2014 - U8 OUVERT OPEN | 2014-07-18 | R | 7 | 4 | 1075 | 918 | 1057 | 1098 | |
| Aurora Summer Open 2014 - U1300 | 2014-07-07 | R | 5 | 2.5 | 1095 | 958 | 1075 | 1098 | |
| 2014 SCC Spring into Summer U1400 | 2014-06-26 | R | 5 | 3 | 1098 | 1083 | 1095 | 1098 | |
| 2014 Guelph PreSummer ProAm U1600 | 2014-06-08 | R | 4 | 3.5 | 925 | 1416 | 1098 | 1098 | |
| 2014 SCC Ch | 2014-05-15 | R | 5 | 3.5 | 824 | 1178 | 925 | 925 | |
| 2014 OYCC - U08 | 2014-04-20 | R | 5 | 4 | 799 | 921 | 824 | 837 | |
| Feb 23-Mar 23 Oriole - B | 2014-03-23 | R | 6 | 3 | 799 | 779 | 799 | 837 | |
| 2014 SCC Winter Swiss - U1400 | 2014-03-20 | R | 4 | 2 | 819 | 630 | 799 | 837 | |
| 2014 Aurora Spring U1300 | 2014-03-09 | R | 5 | 1.5 | 837 | 749 | 819 | 837 | |
| Feb 2-16 Oriole - B | 2014-02-16 | R | 6 | 3.5 | 774 | 921 | 837 | 837 | |
| 2014 SCC Jack Frost Swiss - U1400 | 2014-02-06 | R | 2 | 1.5 | 768 | 867 | 774 | 774 | |
| Jan 12-26 Oriole - B | 2014-01-26 | R | 6 | 4 | 729 | 747 | 768 | 768 | |
| CFC Junior Grand Prix 2 - U8 | 2014-01-05 | R | 5 | 3.5 | 667 | 876 | 729 | 729 | |
| CFC Junior Grand Prix 1 - U8 | 2013-12-29 | R | 5 | 3 | 625 | 803 | (667) | (21 g) | |
| Dec 1-15 Oriole - B | 2013-12-15 | R | 4 | 2 | 672 | 483 | (625) | (16 g) | |
| Nov 10-24 Oriole - B | 2013-11-24 | R | 6 | 3 | 467 | 876 | (672) | (12 g) | |
| Oct 20-Nov 3 Oriole - B | 2013-11-03 | R | 6 | 2 | 0 | 467 | (467) | (6 g) |