From the ARGbase site, www.oocities.org/colosseum/mound/7762/jag/base4049.htm, comes this cross table (well, I made the xtab, but ARGbase supplied the pgn’s):
Beware however – there is some complications from Bolbochan’s apparent withdrawal from the tournament which could alter the above.
For example, if Bolbochan withdrew before playing six games, all his results would be dropped(*). That would mean Stahlberg would lose 1/2, while all others would lose 1 point. (Stahlberg drew Bolbochan in round 1). In that case, Najdorf would be tied with Stahlberg for 1st place with 8/10.
(*) Under modern rules. The cbh file from ARGbase has only five games with moves from Bolbochan (including a loss to Najdorf, and a draw to Stahlberg). It is likely that modern rules were used in the 1948 tournament, but contemporaneous confirmation would be nice to have.
And also from ARGbase, comes the cross table for Buenos Aires / La Plata Sextangular (1947), a 6-player double Round Robin: