If you are even just fairly decent with that voltmeter, it's an easy problem to solve:up:
In the interest of saving a Track Day immediately I have some guesses for you.
The red run switch (that should be "on" haha) is prone to corrosion. So is the relay in the fuse box. I'd start by wiggling the switch really well, and pulling out the relay and swapping it with another in the fuse box (they are the same) wiggling the relay could also break through some corrosion as well.
Other parts in that system are the kickstand switch (if you bike has one) and the clutch switch (tiny 2 prong switch at the base of the lever. Wiggle those wires and make sure they're connected.
If all that fails, you can always trick the starter to cranking.
These tricks bypass all the safeties, so make SURE you're in neutral etc...
1) The starter has ONE big wire on it (you could use a big wire from the battery (+) to crank it.
2) The solenoid that's mounted on it has 2 BIG wires and one small one. One of the big wires is directly from the battery, one big wire is to the starter. You can use a BIG wire to jump the two big wires together.
3) You can jump the Big battery wire from either the battery or the solenoid to the small wire on the starter solenoid with a small wire and it will crank also.
Hope that helps. When you get to the garage you can diagnose it properly