I will be using the KEY SYSTEM programs to reduce the Rundown Due pairs list. These programs give you the same two key digits. Do not concern yourself so much with the playlists – what you want are the two key digits. 

Key Digit Programs
> KEY 40 SYSTEM
> KEY 64 SYSTEM
> KEY 80 SYSTEM
> KEY 120 SYSTEM

Enter the last 10 numbers that hit to get the key digits for the following day (one or both of the key digits should hit in the next one or two drawings). For example, the last 10 numbers for California starting from Friday June 19 are: 917 931 665 607 963 494 380 744 821 734 

https://www.lotterypost.com/results/ca/calendar/daily3

When you enter these 10 numbers into the program, it gives you keys 4 and 8. 

Key 40 System
Numbers used: 917 931 665 607 963 494 380 744 821 734
List 48: 028 058 128 145 158 238 245 246
247 248 249 258 268 278 358 457 458 459 (18)

Notice that 598 and 480 hit the following day!

Test this program out in your state.

Use this information to reduce your playlist.