The skipper was huge for the visitors, racking up 30 disposals, 12 clearances, 6 inside 50s and 5 tackles and won an overwhelming majority of the supporter vote (498 votes*) to receive the three points for the week.
Boak has now moved into outright third on the Supporters' Player of the Year Award.
Chad Wingard's 22 disposals and two goals earned him two points while Kane Cornes received one point for his 29 disposal game.
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*The three players who receive the most votes in any given week are awarded 3,2,1 points in a Brownlow style count
Overall leaderboard - Supporters' Player of the Year Award
9 - Hartlett
7 - Westhoff
6 - Boak
5 - Wingard
3 - Neade
2 - Schulz, Wines, Cornes
Round 6 v North Melbourne
3 - Boak
2 - Wingard
1 - Cornes
Round 5 v West Coast
3 - Hartlett
2 - Neade
1 - Wingard
Round 4 v Gold Coast
3 - Hartlett
2 - Westhoff
1 - Cornes
Round 3 v Adelaide
3 - Boak
2 - Westhoff
1 - Wines
Round 2 v GWS
3 - Westhoff
2 - Wingard
1 - Neade
Round 1 v Melbourne
3 - Hartlett
2 - Schulz
1 - Wines