IRL registration with FIDE; additional rating requirement of 1900+ FIDE or ICU with many exceptions (see Sources and notes).
Tie-break
Not explicitly stated; a tie between exactly two players resulted in a shared title, but the outcome if three or more players had tied is uncertain. (See Sources and notes.)
Time control
40 moves in 105 minutes, plus an additional 30 minutes at move 40, plus a 30 second increment from move 1.
Irish Championship Major 2017, 1st-5th Martin Crichton (Transport for London ENG), Eoin Govers (Ennis), Jan Heinrich (Adare), Ravshan Khaydarov (Lucan), John McMorrow (Gonzaga)