c. April to May
Time control: 10min, +/- 1min per 100 rating points
Source: Joe Klimczak's archive. A spreadsheet contains the almost complete round-robin cross table below. Earlier spreadsheets' modification dates suggest the tournament had started by 10 April; the file with the cross table was last modified on 10 June, but a cell in the spreadsheet suggests the results were updated on 23 May.
N Rtg Name Pts | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 ------------------------------------------------------------------------ 1 1940 WOLFGANG 14.0 | * 1 1 1 1 1 1 1 1 1 1 1 1 1 - 1 2 1650 JONATHAN 5.5 | 0 * 0 0 0 0 1 0 1 = 1 1 1 - 0 3 1641 ANDREW 11.5 | 0 1 * 1 1 1 = 1 1 1 1 1 1 0 - 1 4 1586 NORBERT 6.5 | 0 1 0 * 0 0 1 0 = 1 1 1 0 0 - 1 5 1537 MARC 9.0 | 0 1 0 1 * 0 1 1 0 1 0 1 1 1 - 1 6 1534 MICHAEL 6.0 | 0 1 0 1 1 * 0 0 0 1 0 1 1 0 - 0 7 1530 MIKE 5.5 | 0 0 = 0 0 1 * 0 1 1 0 1 0 1 - 0 8 1492 JOHN 9.0 | 0 1 0 1 0 1 1 * 1 1 0 0 1 1 - 1 9 1351 JOE 6.5 | 0 0 0 = 1 1 0 0 * 1 0 1 0 1 - 1 10 1300 ROLF 0.0 | 0 0 0 0 0 0 0 0 * 0 0 - 11 1247 COLIN 6.0 | 0 = 0 0 1 1 1 0 1 * 1 - = 12 1073 DAVID F. 3.5 | 0 0 0 0 0 0 0 1 0 1 * = 1 - 13 1745 MARTIN 4.5 | 0 0 0 1 0 0 1 0 1 1 = * 0 - 14 1540 VICTOR 6.0 | 0 0 1 1 0 1 0 0 0 0 0 1 * - 1 15 1500 DAVID M. | - - - - - - - - - - - - - - * - 16 1250 TONY 3.5 | 0 1 0 0 0 1 1 0 0 = 0 - *