Opposite party senators run against each other

[Sir Mohamed]

If the two senators from the states with one Dem and one GOPer would run against each other, who would win each race?


My thoughts:

AL: Shelby defeats Jones 58-40%
CO: Bennett defeats Gardner 51-46%
FL: Nelson defeats Rubio: 50-48%
IN: Young defeats Donnelly: 50-46%
ME: King defeats Collins: 51-48%
MO: Blunt defeats McCaskill: 49-48%
MT: Tester defeats Daines: 49-47%
ND: Hoeven defeats Heitkamp: 52-45%
NV: Cortez-Masto defeats Heller: 48-45%
OH: Brown defeats Portman: 50-49%
PA: Casey defeats Toomey: 53-46%
VT: Sanders defeats Leahy: 55-44%
WI: Baldwin defeats Johnson: 50-47%
WV: Manchin defeats Shelly-Capito: 53-45%

[Politician]

Republican winners (margin):
Shelby (12%)
Young (5%)
Hoeven (8%)

Democratic winners (margin):
Bennett (6%)
Nelson (5%)
King (5%)
Tester (3%)
Cortez-Masto (6%)
Casey (5%)
Baldwin (4%)

Tossups:
MO
OH
WV