IRL registration with FIDE; additional rating requirement of 1900+ FIDE or ICU with many exceptions (see Sources and Notes).
Tie-break
Not explicitly stated; possibly unchanged from 2014: “Where two players tie for first place the title and prize money will be shared. Where 3 or more tie for first place the top two using Buchholz Meridian system (Hi-Lo) will share the title and all tied players will share the 1st., 2nd., 3rd., and 4th ( if advertised ) prizes equally.”
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)