I went through the last 30+ years of drafts and assessed why good players went undrafted. I mapped those trends on to this year's draft to see who might fit the model and get overlooked, despite potential value. Here are the best undrafted players in recent past at each position. In parentheses it shows why they were not picked. Below that are the players in this years class who have similar attributes. Let me know what you think and if I missed anybody. In summary the overall assessment when targeting undrafted players is to value skill over athleticism or size. Almost every player on the list was highly skilled but were small for their position or lacked athletic traits. Very few were uber athletes that needed to develop skills I.e, skill > athletic upside when it comes to undrafted players.


Point Guards(Lack Athleticism/Shot)
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TJ McConnel (-ath)
Fred VanVleet (-ath)
Jose Calderon (-ath)
Avery Johnson (-shot)
Darrell Armstrong (-shot)
JJ Barea (-size)
Earl Boykins (-size)
Jeremy Lin (SG game, PG body)
Mike James (SG game, PG body)


Shooting Guards (Lack Size)
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Lu Dort (-size)
Kendrick Nunn (-size)
Duncan Robinson (-age)
Brynn Forbes (-ath)
Raja Bell (?)
Wes Matthews (heavy build)
John Starks (-size)
Seth Curry (-ath)
David Wesley (-size)


Small Forwards (Tweener/Unrefined)
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Robert Covington (PF game, SF body)
Joe Ingles (PG game, SF body)
Naji Marshall (PG game, SF body)
Derrick Jones Jr (unrefined offense)
Royce ONeale (-size, heavy)
Andres Nocioni (PF game, SF body)
Bruce Bowen (unrefined offense)


PF/C (Unconventional Size)
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Ben Wallace (-size, 6'8 C)
Naz Reid (-size, 6'9 C, heavy)
Udonis Haslem (heavy)
Christian Wood (thin, PF/C tweener)
Reggie Evans (Rebounder only)
Brad Miller (-ath)
Birdman (character issues)
Moses Brown (unrefined)


Who in this draft may go undrafted and fits the archetypes above? Who are they akin to?
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PG
DJ Stewart - similar to Darrell Armstrong
Austin Reaves - similar to Jose Calderon
Jason Preston - similar to TJ McConnell
Daishen Nix - heavy build
Jose Alvarado - similar to VanVleet

SG
Scottie Lewis - similar to Raja Bell
David Duke - similar to Wes Matthews
Buddy Boheim - similar to Seth Curry

SF
Raiquan Gray - similar to Royce O'Neale/Joe Ingles

PF/C
Justin Champagnie - similar Reggie Evans
Ariel Hukporti - similar to Birdman
Luka Garza - similar to Brad Miller