Géza Maróczy defeated Salo Landau in all three games of a match played across Rotterdam and The Hague. The final result was 3–0.
The historical itinerary
Edo dates the match from 28 May to 18 June 1930. It notes that some secondary sources give Amsterdam, while cited primary reports place the beginning in Rotterdam and the finish in The Hague.
The source database gives the location only as “Netherlands”; this page gives the actual itinerary.
A complete match record
All 3 games are here. Games are listed in the round order of the source database.
The games give Maróczy 3–0 over Landau (+3 −0 =0), the same as the match record in the Edo database.
Cross table
1 win · ½ draw · 0 loss — click a game number to replay it.