He won eight heat games early on in Series 64 to achieve a total of 903 points, becoming only the sixth player in history to score over 900 as well as the sixth to achieve centuries in all of his preliminary games. His most convincing victory was in his final heat against Mavis Riley, where he spotted the nine-letter word RELATIONS to lead 51 – 0, a record margin after the first half. He proceeded to beat his opponent with words such as PEDALO and HARDENER as well as another niner, SIGNATURE, and became the second player ever, after Julian Fell, to win a game by over 100 points.
In the finals, he returned as #1 seed, beating #8 seed Michelle Nevitt in the quarters. Nevitt provided competition with the niner CONVERTER, but AIRIEST, MORALISE and good numbers skills proved Gillard as the victor. #4 seed Andy McGurn was next, in the semis; Gillard achieved a 108 – 52 victory, including the apt conundrum ONWARDIGO.
Gillard then took on Edward McCullagh in a grand final of a high standard. However, McCullagh beat him with BROWNIES, CARDIO and a numbers game. He ultimately emerged the runner-up 113 – 94, but would have achieved 113 – 104 had his guess on the final conundrum been correct.
He returned to Countdown in 2013, as one of 41 contestants taking part in the 30th Birthday Championship. He was a late replacement for Series 63 semi-finalist Marcus Hares, but he received a bye to the first round, but lost his only game against Series 61 semi-finalist Innis Carson by a score of 116 – 91.
Gillard is also an Apterite. He went to his first Countdown tournament in 2012, when he attended CobliviLon, where he set a new record for the highest score in a "live" (as opposed to online play) 9 round format game with a 95 – 77 win over James Robinson. This score has since been surpassed by Innis Carson, who scored 99 in a 9-rounder at COEDI later in the same year.
|#||Date||Type||Contestant 1||Score||Contestant 2||Guest||Lex||Max|
|5181||12/01/2011||P||Gavin Cooksley||51 – 106||Adam Gillard||Tim Vine||Susie Dent||116|
|5182||13/01/2011||P||Adam Gillard||105 – 36||Fran Dyson||Tim Vine||Susie Dent||129|
|5183||14/01/2011||P||Adam Gillard||126 – 70||Ray Li||Tim Vine||Susie Dent||129|
|5184||17/01/2011||P||Adam Gillard||113 – 65||Andy Turner||Jonathan Maitland||Susie Dent||116|
|5185||18/01/2011||P||Adam Gillard||110 – 74||Liz Prior||Jonathan Maitland||Susie Dent||131|
|5186||19/01/2011||P||Adam Gillard||116 – 32||Cheryl Cutler||Jonathan Maitland||Susie Dent||151|
|5187||20/01/2011||P||Adam Gillard||102 – 75||Adam Manning||Jonathan Maitland||Susie Dent||131|
|5188||21/01/2011||P||Adam Gillard||125 – 23||Mavis Riley||Jonathan Maitland||Susie Dent||141|
|5272||26/05/2011||QF||Michelle Nevitt||76 – 117||Adam Gillard||Alistair McGowan||Susie Dent||129|
|5276||1/06/2011||SF||Adam Gillard||108 – 52||Andy McGurn||Gregg Wallace||Susie Dent||133|
|5278||3/06/2011||GF||Adam Gillard||94 – 113||Edward McCullagh||Gregg Wallace||Susie Dent||127|
|5629||25/01/2013||30B1||Innis Carson||116 – 91||Adam Gillard||Margaret Mountford||Susie Dent||137|