Since we just had two additions to this table in the last couple of weeks, it feels like a good time to post it here. This is a list of everyone, since 2008, who has won a GP without losing a match. No one has ever actually won every match they were paired for, though this is largely a matter of deciding how you count intentional draws.

We have raw 2008-09 data now; it’s going to take a couple of weeks to curate it, but it’s good enough to decide whether the winner lost at some point during the tournament or not. The table only lists the record in rounds played, i.e., byes are ignored. This is why the win totals might look low at first blush. Richard Parker only had one bye in GP Lille, so he got an extra couple of matches in at the beginning. This is an insane accomplishment, but it is actually not the record for wins in a single GP: that distinction goes to Brock Parker, who won GP Pittsburgh 2013 with zero byes, going 17-2-0-0 in the event. He was helped by the fact that there was a tenth round of sealed deck played on day one. Given that all current Grand Prix (and almost all older ones) involve fifteen or fewer rounds of Swiss, it seems very likely that no one else has managed 17 wins in one GP.