F. Diaz Acosta shows a 4–1 form record, though the level of opposition has been mixed — average ranking of opponents is 405. Point margins have been modest — DS averaging +6.0. Wins have been functional rather than dominant. The serve has been a concern — averaging only 5.8/10, leaving F. Diaz Acosta vulnerable on second serve and facing frequent return pressure. Good performance in key moments — break point efficiency of +16 over the last five.