| 2020 Mandurah Summer Congress Swiss Pairs - DAVID PETTERSON / BEVERLY PETTERSON | |||||
| Match | Opponent | Imps | VPs | Cum. Rank | |
| 2020 Mandurah Congress Swiss Pairs - Round 1 | KAIPING CHEN / FISKE WARREN (14) | -14.08 | 4.84 | 65 | |
| 2020 Mandurah Congress Swiss Pairs - Round 2 | SUE SHADBOLT / JAY WONGPHASUKCHOT (65) | 6.08 | 12.34 | 56 | |
| 2020 Mandurah Congress Swiss Pairs - Round 3 | SHEELAGH DUPONT / ALFRED DUPONT (22) | 39.97 | 20.00 | 17 | |
| 2020 Mandurah Congress Swiss Pairs - Round 4 | HILARY HALL / WALTER HALL (48) | 12.58 | 14.87 | 8 | |
| 2020 Mandurah Congress Swiss Pairs - Round 5 | MAX HAVERCROFT / JUDY HAVERCROFT (26) | -8.19 | 6.88 | 16 | |
| 2020 Mandurah Congress Swiss Pairs - Round 6 | GEOFF HOLMAN / RON COOPER (6) | 0.18 | 10.00 | 19 | |
| 2020 Mandurah Congress Swiss Pairs - Round 7 | MARIANNE VIEBKE / JOHN FERGUSON (71) | 6.79 | 12.73 | 15 | |
| Totals | 43.34 | 81.66 | |||
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