His all-time best length ( standing reach and wingspan) is actually longer than many SF's who stand at 6'8''-6'10''. Due to his length he will have the potential to defend the 1 -3 in NBA(given he progresses defensively). The only player to have longer measurements at pg is Shaun Livingston, who stands at 6'8''.
All players drafted at PG in lottery since 2000:
Wingspan: 2nd all time behind Shuan Livingston
Standing Reach: 2nd all time behind Livingston
All players drafted in first round at PG since 2000:
Standing Reach: 3rd overall
Wingspan: 0.25'' away from 2nd overall. Ties for 4th overall.
To put this into better perspective....If Fultz ever gets a 38'' max vertical( which he could already posses), he would have the same defensive range as KAWHI LEANARD when he came into the league at 3200 square feet.....
Fultz (measurements could very well be longer now)
8'6'' Standing Reach
6'10'' Wingspan
***Standing Reach seems to always be left out/inconsequential when length is discussed. Standing Reach is just as important though. Among many things, it also factors in with: height of release point for jumper, makes it difficult for players to disturb your jumper, rebounding, contesting shots, blocking shots, picking off high passes, and etc.
Lillard: 6'7.75'' wingspan and 7'11.5'' standing reach
MCW: 6'7.25'' wingspan and 8'5'' standing reach
Jae Crowder: 6'9.25'' wingspan and 8'3.5'' standing reach
Chris Paul:6'4.25'' wingspan and 7'9'' standing reach
Mike Conley: 6'5.75'' wingspan and 7'10.5'' standing reach
D-Rose: 6'8'' wingspan and 8'2'' standing reach
Westbrook: 6'7.75'' wingspan and 8'4'' standing reach
George Hill: 6'9'' wingspan and 8'1'' standing reach
Steph Curry: 6'3.5'' wingspan and 8'1'' standing reach
Derozan: 6'9'' wingspan and 8'6'' standing reach
Kyrie: 6'3.5'' wingspan and 8'3'' standing reach
Kemba Walker: 6'3.5'' wingspan and 7'7'' standing reach
KCP: 6'8'' wingspan and 8'4'' standing reach
Beal: 6'8'' wingspan and 8'4'' standing reach
John Wall: 6'9.25'' wingspan and 8'5'' standing reach
CJ McCollum: 6'6.25'' wingspan and 8'0.25'' standing reach
Oladipo: 6'9.25'' wingspan and 8'4.5'' standing reach
Jimmy Butler: 6'8'' wingspan and 8'5'' standing reach
D. Wade: 6'10.75'' wingspan and 8'6'' standing reach
Defensive NBA potential
Is off the charts, but it is not guaranteed. He gave up a lot of drives when in isolation defense against other guards. Scouts believe he was carrying a tremendous load for the team, which demanded a lot of energy, but he also had a very fixable/coachable defensive fundamental:
-Location of arms while in defensive stance: He keeps his arms behind him which makes him off-balance and lass athletic. See for yourself in any of the videos from college. Whenever he was in isolation defense the placement of his arms put him at a huge disadvantage on the drive & contesting the shot. This is something that is extremely fixable. It also helps that we have great defenders, a defensive culture, and a great coach. There is no way CBS always Fultz to play defense with his arms in that position.....which IMO means Fultz will change if he ever wants to play in the NBA.
- Getting bumped by defender on drive: one more thing Fultz can do is get better core strength so he does not get bumped off while his defender is driving. Fultz has a history of making huge strides in short periods of time. Young players are naturally the most likely to make physical gains. Getting plugged into a PRO STRENGTH AND CONDITIONING PROGRAM and having zero classes/ academic responsibilities are 2 of the more significant factors, along with natural boosts in testosterone/etc. IMO Fultz will improve both core and overall strength by the start of the season...which is like 5 months away.
Here is a good breakdown of his game:
https://www.youtube.com/watch?v=jHYCFBASl_4