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There is no record of the name of the players or the modalities that were played in the plaza libre. The only information available is that 5 events were played between France and Spain, and that France won all 5.
France: Pierre and Bernard Bareits, Jacques Errecalde.
References
Javier Solano (November 2004). "Historia de los Mundiales" (PDF) (in Spanish). Archived from the original (PDF) on 24 September 2016. Retrieved 20 September 2016.
^ "BAREITS, Pierre". Auñamendi Eusko Entziklopedia (in Spanish). Retrieved 2023-01-19.
"BAREITS, Bernard". Auñamendi Eusko Entziklopedia (in Spanish). Retrieved 2023-01-19.
"ERRECALDE, Jacques". Auñamendi Eusko Entziklopedia (in Spanish). Retrieved 2023-01-19.