[2] He has played at representative level for the Prime Minister's XIII and for Australia 9s at the 2019 Rugby League World Cup 9s tournament.

[9] In round 18 2019 against the Parramatta Eels, Garrick scored a hat-trick as Manly Warringah won the match 36-24 at Brookvale Oval.

[10] In round 20 2019 against Newcastle, Garrick scored 2 tries and kicked 3 goals as Manly won the match 30-6 at Brookvale Oval.

In round 15 of the 2020 NRL season, Garrick scored two tries and kicked two goals in a 56-16 loss against South Sydney at ANZ Stadium.

[16] In round 6 of the 2021 NRL season, Garrick scored two tries and kicked six goals in Manly's 36-0 victory over the Gold Coast.

[23] In round 24, Garrick became the first player in NRL history to score 20 tries and kick 100 goals in a season during Manly's victory over wooden spooners Canterbury.

[24] In round 25, Garrick overtook Hazem El Masri's record for most points by a player during a regular NRL season in Manly's 46-18 victory over North Queensland.

[33] Garrick played 21 games for Manly in the 2023 NRL season as the club finished 12th on the table and missed the finals.

[36] In the Second Elimination Final against the Canterbury-Bankstown Bulldogs at Accor Stadium, Garrick kicked 4/4 goals in Manly's 24-22 come from behind win.