the best person to ask is 陈团生 ....... as at least he uses computer pairing for Singapore Open 7 + 2 method for all players for two years in 2007 and 2008. Your system is a bit more complex as you are using 5 + 3 method for the Top 8 persons and 5 + 4 method for others. For 7 + 2 method, after the first 7 rounds, to use manual pairing instead of computer pairing for the Top 4 but input the munual pairing for the purpose of 计算对手分, you need to stop the Top 4 after Round 7 before you do the computer pairing for others for Rounds 8 & 9. If you need to use the results of last 3 rounds (5 + 3 method) of the Top 8 for the 对手分 calculation of others, you may need to use 5 + 3 method for others too, alternatively, do not calculate the 对手分 further after first 5 rounds for the Top 8, i.e. their 对手分 stop after Round 5. This is the extra work for computer pairing if you have two methods in one competition, another alternative is to use 8 or 9 rounds Swiss pairing method for all players to avoid any man (more...)