Usain Bolt is kicking off his 2017 season--allegedly his last, as he's repeatedly said he'll retire after this year--in Australia this weekend. The world record holder and nine-time Olympic gold medalist is the captain of the Usain Bolt All-Stars for a series of meets in Melbourne. The meets are unconventional, though, as they're focused on mixed-gender team scoring. The first one will be late on 

The format

Over the course of three meets, the team that accumulates the most points will win. First place in an event is worth 100 points, second 80, third 70, fourth 60, fifth 50, and sixth 40. Additionally, the teams that are leading after each of the first two meets will receive points. The team captains can choose on the night of the event how to deploy the athletes on their rosters, and some events will have bonus points available. The first race is this Saturday, February 4, which will be in the very early morning U.S. time on Saturday.

Here's the full explanation of the team scoring:

The teams

And here's who will be duking it out throughout February in Melbourne. Again, the captains of each team can decide how to use their athletes before each meet, and it will be kept a secret until each of the three meets start. Each team has 12 men and 12 women.

Bolt All-Stars

Men	Event
Usain Bolt	Sprints
Michael Frater	Sprints
Asafa Powell	Sprints
Ryan Wilson	Hurdles
Kerron Clement	Hurdles/sprints
Jarrion Lawson	Jumps/sprints
James Magut	Mid-distance
Elijah Kiptoo	Mid-distance
Matthew Ramsden	Mid-distance
Mark Hollis	Pole vault
Cyrus Hostetler	Javelin
Jarryd Wallace	Para-Athletics
Women
Natasha Morrison	Sprints
Jeneba Tarmoh	Sprints
Christine Day	Sprints
Dawn-Harper Nelson	Hurdles
Jenna Prandini	Jumps/sprints
Brittany McGowan	Mid-distance
Selah Busienei	Mid-distance
Anastasia Marinakou	Mid-distance
Nina Kennedy	Pole vault
Naa Anang	Jumps
Kara Winger	Javelin
Femita Ayanbeku	Para-Athletics

Australia

Men	Event
Alex Hartmann	Sprints
Jack Hale	Sprints
Aaron Stubbs	Sprints
Luke Stevens	Sprints
Justin Merlino	Hurdles
Ryan Gregson	Mid-distance
Jeff Riseley	Mid-distance
Luke Mathews	Mid-distance
Fabrice Lapierre	Jumps
Kurtis Marschall	Pole vault
Hamish Peacock	Javelin
Scott Reardon	Para-Athletics
Women
Morgan Mitchell	Sprints
Anneliese Rubie	Sprints
Riley Day	Sprints
Christine Wearne	Sprints
Michelle Jenneke	Hurdles/sprints
Genevieve LaCaze	Mid-distance
Linden Hall	Mid-distance
Heidi See	Mid-distance
Brooke Stratton	Jumps
Liz Parnov	Javelin
Kathryn Mitchell	Javelin
Ella Pardy	Para-Athletics

England

Men
Theo Campbell
Luke Cutts
Joe Dunderdale
Scott Hall
Confidence Lawson
Gabriel Odujobi
Michael Rimmer
Kieran Showler-Davis
Jamie Webb
Richard Weir
Rabah Yousif
Women
Margaret Adeoye
Alex Bell
Jo Blair
Karla Drew
Mary Elcock
Alison Leonard
Christine Ohuruogu
Abigail Roberts
Charlene Thomas
Bianca Williams
Hannah Williams

Japan

 

Men	Event
Kazuma Oseto	Sprint
Takuya Nagata	Sprint
Kotaro Taniguchi	Sprint
Kosuke Horii	Sprint
Kazuhik Kawamura	Mid-distance
Renya Maeda	Mid-distance
Kazuki Tamogami	Mid-distance
Wataru Yazawa	Hurdle
Kota Suzuki	Pole vault
Kota Minemura	Long jump
Katsuya Nakamura	Javelin
Mikio Ikeda	Para Sprint
Women
Miyu Maeyama	Sprint
Mariko Nagano	Sprint
Haruko Ishizuka	Sprint
Minami Hatano	Sprint
Ran Urabe	Mid-distance
Yuki Hirota	Mid-distance
Mariko Okita	Mid-distance
Masumi Aoki	Hurdle
Ayako Aoshima	Pole vault
Tamaka Shimizu	Long jump
Hiroko Takigawa	Javelin
Mana Sasaki	Para Sprint

China and New Zealand are also sending teams, with full rosters yet to be announced.