It's more than 0.9 miles, because the witnesses said the man was walking west on 10th towards Patton.
It's completely possible that Oswald was walking west on Tenth and arrive at the Tippit encounter at 1:16.
Speculation, but possible:
12:33 - Leaves the Depository
12:40 - Boards the McWatters bus
12:44 - Departs the bus
12:48 - Enters Whaley's cab
12:53/12:54 - Exits Whaley's cab at Beckley & Neely
12:59 - Arrive at rooming house
1:00 - Leave rooming house ("Long enough to grab a jacket and put it on" - Earlene Roberts)
1:01 - Begin walking south on Beckley form the bus stop outside rooming house
1:12 - Arrive at Tenth & Patton for the first time
1:14 - Walking east on Tenth, arrive at curve on Tenth Street, see Sherriff's Deputy Unit 109 east of the curve and do an about-face, now walking west on Tenth
1:16 - Encounter Tippit