SwissSys Standings. 2009 York Region Chess Challenge: Grade 4
| # | Name | ID | Rtng | Rd 1 | Rd 2 | Rd 3 | Rd 4 | Rd 5 | Tot | Prize |
| 1 | Melissa Giblon | 760869 | 966 | W31 | W9 | W4 | W8 | W3 | 5.0 | |
| 2 | Ethan Atkinson | 776103 | 727 | D5 | W12 | W17 | W19 | W8 | 4.5 | |
| 3 | John O'Reilly | 889997 | 487 | B--- | W21 | W16 | W5 | L1 | 4.0 | |
| 4 | Adam Packer | 708917 | 599 | W18 | W11 | L1 | W16 | W10 | 4.0 | |
| 5 | Austin Jiang | 936707 | unr. | D2 | W22 | W25 | L3 | W16 | 3.5 | |
| 6 | Andre Dao | 936718 | unr. | L17 | B--- | W13 | W9 | D7 | 3.5 | |
| 7 | Matthew Minchella | 776147 | 483 | W23 | L10 | W21 | W20 | D6 | 3.5 | |
| 8 | Mark Huang | 936729 | 615 | W26 | W17 | W10 | L1 | L2 | 3.0 | |
| 9 | Rigel Noble-Koza | 936731 | unr. | W20 | L1 | W23 | L6 | W18 | 3.0 | |
| 10 | Nathan Song | 936742 | unr. | W30 | W7 | L8 | W14 | L4 | 3.0 | |
| 11 | Ali Pourkevian | 936753 | unr. | W14 | L4 | L19 | W28 | W25 | 3.0 | |
| 12 | Hayden Brown | 889942 | 468 | W24 | L2 | L22 | W30 | W19 | 3.0 | |
| 13 | Kevin Mo | 936764 | unr. | W28 | L16 | L6 | W23 | W20 | 3.0 | |
| 14 | Ryan Edwards | 889953 | 522 | L11 | W29 | W24 | L10 | W17 | 3.0 | |
| 15 | Liam Douglas | 840115 | 293 | L21 | L18 | X31 | W27 | W22 | 3.0 | |
| 16 | Charles Ma | 877015 | 743 | W19 | W13 | L3 | L4 | L5 | 2.0 | |
| 17 | Christina Stevenson | 936775 | unr. | W6 | L8 | L2 | W24 | L14 | 2.0 | |
| 18 | Jonathan Lekatis | 889975 | 384 | L4 | W15 | L20 | W21 | L9 | 2.0 | |
| 19 | Matthew Glonna | 936786 | unr. | L16 | W28 | W11 | L2 | L12 | 2.0 | |
| 20 | Evan Dacey | 936808 | unr. | L9 | W26 | W18 | L7 | L13 | 2.0 | |
| 21 | Sina Kheir-Abady Seyed | 936797 | unr. | W15 | L3 | L7 | L18 | W30 | 2.0 | |
| 22 | Ben Wehby | 936819 | unr. | D27 | L5 | W12 | D25 | L15 | 2.0 | |
| 23 | Agnes Lim | 936821 | unr. | L7 | W31 | L9 | L13 | W29 | 2.0 | |
| 24 | Kyle Dungey | 936832 | unr. | L12 | W30 | L14 | L17 | W27 | 2.0 | |
| 25 | Varuhn Ruthirakuhan | 936854 | unr. | D29 | W27 | L5 | D22 | L11 | 2.0 | |
| 26 | Mitchell Taylor | 936843 | unr. | L8 | L20 | D30 | D29 | X28 | 2.0 | |
| 27 | William Deo | 936865 | unr. | D22 | L25 | W29 | L15 | L24 | 1.5 | |
| 28 | Andrew Currie | 936876 | unr. | L13 | L19 | B--- | L11 | F26 | 1.0 | |
| 29 | Gregory Sondrup | 936887 | unr. | D25 | L14 | L27 | D26 | L23 | 1.0 | |
| 30 | Drew Robinson | 936898 | unr. | L10 | L24 | D26 | L12 | L21 | 0.5 | |
| 31 | Rudy Ancimer | 936909 | unr. | L1 | L23 | F15 | U--- | U--- | 0.0 | |