Their members have ran a total of 37,055km over a total of 179 days, with 1104 runners taking the track.
On Saturday the club will break the 100 barrier, and to mark the occasion event director Casey Smith is hoping to see 100 runners hit the Junction Hill track in their craziest pair of socks.
"It's pretty good we got this far, it's definitely gone quickly,” Smith said.
"We wanted to celebrate reaching this milestone so we thought it's just something a bit different to do, we didn't want to do anything too over the top but wanted everybody to be involved so we thought a crazy pair of socks to have a bit of fun was perfect.
"Someone suggest a big dress up but I suggested something a bit simpler that everyone can do and I said I thought another Parkrun had done a crazy sock kind of thing and everyone liked the idea.”
Smith said she hoped to see 100 runners take part in their 100th run on Saturday morning.
"I think chucking the socks in will help, one person can tell their friends to get involved because they are, so we're hopefully we get 100 for our 100th,” she said.
"We are trying to put on a morning tea and if anyone wants to bring anything along their welcome and we can all just get together and have a bit afterwards and a chat and catch up.”
To register or for more information visit www.parkrun.com.au/ grafton.