Games played by Roy C Ervin
| White | ELO W | Black | ELO B | Result | Moves | ECO | Date | Tournament | View |
| BYE, | Ervin, R | 0-1  |
1972 | Lone Pine op |
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| Savage, A | Ervin, R | 0-1 |
45 | C27 | 1972 | Lone Pine op |
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| Ervin, R | Berner, G | 0-1 |
70 | B00 | 1972 | Lone Pine op |
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| Ervin, R | Goichberg, W | 1-0 |
50 | B72 | 1972 | Lone Pine op |
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| Karklins, A | Ervin, R | 1-0 |
29 | C02 | 1972 | Lone Pine op |
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| Ervin, R | Roy, D | 1-0 |
18 | A36 | 1971 | USA-72ch |
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| Lapiken, P | Ervin, R | 0-1 |
54 | A13 | 1971 | USA-72ch |
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| Radaikin, V | Ervin, R | ½-½ |
28 | A00 | 1971 | USA-72ch |
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| Gauntt, R | Ervin, R | 0-1 |
55 | A00 | 1971 | USA-72ch |
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| Ervin, R | Appleberry, M | 0-1 |
31 | B28 | 1971 | USA-72ch |
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| Ervin, R | Levy, D | 1-0 |
36 | B25 | 1971 | USA-72ch |
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| Chism, O | Ervin, R | 0-1 |
28 | C04 | 1971 | USA-72ch |
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| Ervin, R | Wuntschek, S | 1-0 |
45 | C51 | 1971 | Canadian op 9th |
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| Benko, P | Ervin, R | ½-½ |
79 | D36 | 1971 | Canadian op 9th |
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| Ervin, R | Durrant, E | 1-0 |
46 | B70 | 1971 | Canadian op 9th |
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| Vranesic, Z | Ervin, R | 1-0 |
64 | D36 | 1971 | Canadian op 9th |
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| Zeidaks, A | Ervin, R | 0-1 |
26 | D20 | 1971 | Canadian op 9th |
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| Ervin, R | Johnson, R | 1-0 |
62 | B57 | 1971 | Canadian op 9th |
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