troubleshooting the reaction ring speed game
In the back of the machine you can find the control board that shows you which baton will drop at which time.
Note the 2 green connectors with wires. The control board is made for 12 batons, ( see yellow 11 & 12 ), but since your machine has 10 drop points number 11 and 12 should be empty and not connected.
Next notice the red lights above the connectors. When a red light is ON it means that the particular magnet connected to that port is ON and should hold your baton in place. When you start the game, red lights will turn off one by one and corresponding batons will drop.

IMPORTANT NOTES :
baton #1 is the SECOND wire on the bottom left of the lower green connector.
baton #6 is the right-most connector on the lower green connector
note there are 7 wires in the bottom connector, wire #1 = common ground
connection #11 and #12 should be empty
red lights are not exactly above the correct wire due to size differences. COUNT where needed
REMOVE THE GREEN CONNECTORS AND PUT THEM BACK AGAIN TO CHECK FOR A DIRTY CONNECTOR.
OFTEN THIS WILL SOLVE SIMPLE ISSUES.