McKay's début score of 129 was the joint-highest in the history of the show at the time, along with Giles Hutchings in Series 68 and Jamie Ilett-Jones in Series 71. McKay followed this with seven more victories while never falling below 102. He is known for his catchphrase "what you do is..." at the start of any numbers solution. A total of 1119 points were available to McKay during his octochamp run, the then-highest total ever available to a player who did in fact go on to become an octochamp.
McKay returned for the finals as number 2 seed, and defeated Sean Cooke in the quarter-final to set up a semi-final with number 3 seed Ann Dibben. With only four points separating them in their octoruns, this was always going to be a tight game, and viewers were not disappointed as McKay and Dibben equalled each other in 12 of the first 14 rounds, with Dibben going into the crucial conundrum with a 1 point advantage. Neither player solved MEMYSHAPE, and so McKay was defeated, but finished with an impressive record of 10 centuries in 10 games.
|#||Date||Type||Contestant 1||Score||Contestant 2||Presenters||Guest||Lex||Max|
|6362||18/05/2016||P||Tony Lock||42 - 129||Robin McKay||Nick Hewer||Rachel Riley||Janet Street-Porter||Susie Dent||143|
|6363||19/05/2016||P||Robin McKay||102 - 54||Kevin Dixon||Nick Hewer||Rachel Riley||Janet Street-Porter||Susie Dent||140|
|6364||20/05/2016||P||Robin McKay||107 - 52||Mel Mills||Nick Hewer||Rachel Riley||Janet Street-Porter||Susie Dent||123|
|6365||23/05/2016||P||Robin McKay||111 - 40||Si Prendergast||Nick Hewer||Rachel Riley||Michael Buerk||Susie Dent||146|
|6366||24/05/2016||P||Robin McKay||112 - 8||Struan Charters||Nick Hewer||Rachel Riley||Michael Buerk||Susie Dent||166|
|6367||25/05/2016||P||Robin McKay||109 - 49||John Goodall||Nick Hewer||Rachel Riley||Michael Buerk||Susie Dent||134|
|6368||26/05/2016||P||Robin McKay||107 - 23||Jason Vincent||Nick Hewer||Rachel Riley||Michael Buerk||Susie Dent||145|
|6369||27/05/2016||P||Robin McKay||111 - 44||Aden Brooks||Nick Hewer||Rachel Riley||Michael Buerk||Susie Dent||122|
|6379||13/06/2016||QF||Robin McKay||107 - 72||Sean Cooke||Nick Hewer||Rachel Riley||Richard Madeley||Susie Dent||132|
|6383||23/06/2016||SF||Robin McKay||112 - 113||Ann Dibben||Nick Hewer||Rachel Riley||Dr Phil Hammond||Susie Dent||144|