SwissSys Standings. 2009 Markham Thornhill Chess Challenge: Grade 9
| # | Name | ID | Rtng | Rd 1 | Rd 2 | Rd 3 | Rd 4 | Rd 5 | Tot | Prize |
| 1 | David Lau | 680332 | 646 | W8 | W18 | W4 | W9 | W2 | 5.0 | |
| 2 | Soomin Kim | | unr. | W5 | W15 | W7 | W6 | L1 | 4.0 | |
| 3 | Glen Cho | | unr. | W20 | L4 | W13 | W7 | W6 | 4.0 | |
| 4 | John Cherian | | unr. | W19 | W3 | L1 | W16 | D5 | 3.5 | |
| 5 | Jong Tae Hwang | | unr. | L2 | W12 | W21 | W10 | D4 | 3.5 | |
| 6 | Jason Choi | | unr. | W16 | W14 | W17 | L2 | L3 | 3.0 | |
| 7 | Jerry Jiang | | unr. | W21 | W9 | L2 | L3 | W17 | 3.0 | |
| 8 | Gi Song Song | | unr. | L1 | B--- | W12 | W17 | L10 | 3.0 | |
| 9 | George Papakonstantinos | 840609 | 551 | W11 | L7 | W10 | L1 | W14 | 3.0 | |
| 10 | Christopher Fafalios | 840622 | 388 | W14 | W19 | L9 | L5 | W8 | 3.0 | |
| 11 | Nicholas Tam | | unr. | L9 | L16 | W15 | W20 | W13 | 3.0 | |
| 12 | Alan Daniels | 679241 | 487 | W18 | L5 | L8 | L14 | W16 | 2.0 | |
| 13 | Kevin Cho | | unr. | B--- | L17 | L3 | W21 | L11 | 2.0 | |
| 14 | William Lee | | unr. | L10 | L6 | W18 | W12 | L9 | 2.0 | |
| 15 | Kasey Piper | | unr. | L17 | L2 | L11 | B--- | W20 | 2.0 | |
| 16 | Jamie Jewitt | 574536 | 300 | L6 | W11 | W19 | L4 | L12 | 2.0 | |
| 17 | Simon Mao | | unr. | W15 | W13 | L6 | L8 | L7 | 2.0 | |
| 18 | Hunter Weston | | unr. | L12 | L1 | L14 | D19 | B--- | 1.5 | |
| 19 | Alex Nho | 840813 | 515 | L4 | L10 | L16 | D18 | W21 | 1.5 | |
| 20 | Sang Jun Lee | | unr. | L3 | L21 | B--- | L11 | L15 | 1.0 | |
| 21 | Tom Baghainia | | unr. | L7 | W20 | L5 | L13 | L19 | 1.0 | |