| Game Balance of Robbert van Opstal, sorted by Dates of Events | ||||||||
|---|---|---|---|---|---|---|---|---|
| Event | Opponent | Result | ||||||
| Place | Date ↑ | Significance | Surname | Prename | Rating | Expected | Observed | Net Yield |
| Groningen | 1999-04-10 | 0.000000 | Helmus | René | 1552 | 0.24855 | 0.00000 | -0.24855 |
| Derks | Marc | 1476 | 0.34224 | 0.00000 | -0.34224 | |||
| Eefting | Roel | 1395 | 0.45416 | 1.00000 | 0.54584 | |||
| Lommert | Peter | 985 | 0.91196 | 1.00000 | 0.08804 | |||
| Keizer | Robin | 752 | 0.98248 | 1.00000 | 0.01752 | |||
| Beijsens | Robert | 404 | 0.99874 | 1.00000 | 0.00126 | |||
| Leudsen | 1998-10-01 | 0.000000 | Leijten | Ben | 2382 | 0.00080 | 0.50000 | 0.49920 |
| Rinzema | Sander | 1502 | 0.30887 | 0.50000 | 0.19113 | |||
| Geertsma | Hans | 1254 | 0.65380 | 0.00000 | -0.65380 | |||
| Verleysdonk | Wim | 1186 | 0.73899 | 1.00000 | 0.26101 | |||
| Paffen | Ard | 986 | 0.91149 | 0.00000 | -0.91149 | |||
| Haar | Eric van de | 896 | 0.95114 | 0.00000 | -0.95114 | |||
| Smit | Joost de | 549 | 0.99618 | 1.00000 | 0.00382 | |||
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