Jordan Johnson transferring got me interested. Here's what the No. 1 player in the state of Missouri has done in the Rivals Era (along with who should have been No.1 in hindsight)
2003--Darnell Terrell, went juco, then to Mizzou. 125 tackles, 3 INT, 9 PBU in three seasons (Laurence Maroney who was 3rd)
2004--Chase Patton, 18-31 at Missouri, 1 TD (Tony Temple #2 or William Moore #12)
2005--DJ Hord, 2 catches, 7 yards at Notre Dame (Chase Coffman #3)
2006--Josh Freeman, 8078 passing yards, 44 TD, 34 INT at Kansas State (Adrian Clayborn #2 or Jeremy Maclin #3)
2007--Aron White, 34 catches, 512 yards, 10 TD at Georgia (Derrick Washington #5 or Donald Stephenson #7)
2008--Blaine Gabbert, 6822 passing yards, 40 TD, 18 INT at Mizzou (Gabbert or Aldon Smith #7)
2009--Sheldon Richardson, went juco, 112 tackles, 18.5 TFL, 6 sacks at Mizzou (Montee Ball #4)
2010--Nick Demien, DNP at Mizzou, transferred (EJ Gaines #9)
2011--Darrian Miller, 936 total yards, 4 TD at Kansas (honestly, maybe MIller, or Jason Meehan #15. Rough class)
2012--Dorial Green-Beckham, 1278 yards, 17 TD at Mizzou, dismissed, transferred and DNP at Oklahoma (Evan Boehm #4)
2013--Ezekiel Elliott, 4410 total yards, 44 TD at Ohio State (Elliott)
2014--Brian Wallace, 3 year starter at Arkansas (Wallace or Roderick Johnson #3)
2015--Drew Lock, 12193 yards, 99 TD, 39 INT at Mizzou (Lock)
2016--AJ Taylor, 1395 total yards, 10 TD at Wisconsin (Cale Garrett #13)
2017--Marquis Hayes, 2 year OL starter at Oklahoma (Hayes)
2018--Trevor Trout, DNP, retired due to injury at USC (Ronnie Perkins #4)
2019--Isaiah Williams, 431 yards, 4 TD, 3 INT so far at Illinois (As of now, Kyren Williams #6)
2020--Jordan Johnson, Transferring from Notre Dame (TBD)
2021--Jakailan Johnson, signed with Ohio State (TBD)
That's 19 classes. Mizzou has landed the state's top ranked prospect seven times. On my re-rank, Missouri has landed the state's best player between 7 and 9 times (depending on how you'd go between Maclin/Clayborn and Washington/Stephenson) with at least two still TBD
2003--Darnell Terrell, went juco, then to Mizzou. 125 tackles, 3 INT, 9 PBU in three seasons (Laurence Maroney who was 3rd)
2004--Chase Patton, 18-31 at Missouri, 1 TD (Tony Temple #2 or William Moore #12)
2005--DJ Hord, 2 catches, 7 yards at Notre Dame (Chase Coffman #3)
2006--Josh Freeman, 8078 passing yards, 44 TD, 34 INT at Kansas State (Adrian Clayborn #2 or Jeremy Maclin #3)
2007--Aron White, 34 catches, 512 yards, 10 TD at Georgia (Derrick Washington #5 or Donald Stephenson #7)
2008--Blaine Gabbert, 6822 passing yards, 40 TD, 18 INT at Mizzou (Gabbert or Aldon Smith #7)
2009--Sheldon Richardson, went juco, 112 tackles, 18.5 TFL, 6 sacks at Mizzou (Montee Ball #4)
2010--Nick Demien, DNP at Mizzou, transferred (EJ Gaines #9)
2011--Darrian Miller, 936 total yards, 4 TD at Kansas (honestly, maybe MIller, or Jason Meehan #15. Rough class)
2012--Dorial Green-Beckham, 1278 yards, 17 TD at Mizzou, dismissed, transferred and DNP at Oklahoma (Evan Boehm #4)
2013--Ezekiel Elliott, 4410 total yards, 44 TD at Ohio State (Elliott)
2014--Brian Wallace, 3 year starter at Arkansas (Wallace or Roderick Johnson #3)
2015--Drew Lock, 12193 yards, 99 TD, 39 INT at Mizzou (Lock)
2016--AJ Taylor, 1395 total yards, 10 TD at Wisconsin (Cale Garrett #13)
2017--Marquis Hayes, 2 year OL starter at Oklahoma (Hayes)
2018--Trevor Trout, DNP, retired due to injury at USC (Ronnie Perkins #4)
2019--Isaiah Williams, 431 yards, 4 TD, 3 INT so far at Illinois (As of now, Kyren Williams #6)
2020--Jordan Johnson, Transferring from Notre Dame (TBD)
2021--Jakailan Johnson, signed with Ohio State (TBD)
That's 19 classes. Mizzou has landed the state's top ranked prospect seven times. On my re-rank, Missouri has landed the state's best player between 7 and 9 times (depending on how you'd go between Maclin/Clayborn and Washington/Stephenson) with at least two still TBD