I am surprised I have not seen this elsewhere... so...
Why not here. Make your predictions in the following Senate races in the order presented (roughly poll closing times East-West)- winner who calls the most races correctly wins bragging rights. Indicate Senate race, percentages, and finally, overall Dem/Republican split of Senate (see poll).
KY - SEN - Conway/Paul
CT - SEN - Blumenthal/McMahon
NC - SEN - Marshall/Burr
WV - SEN - Manchin/Raese
PA - SEN - Sestak/Toomey
IL - SEN - Gianoulias/Kirk
WI - SEN - Feingold/Johnson
LA - SEN - Melancon/Vitter
MO - SEN - Carnahan/BluntCO - SEN - Bennet/Buck
NV - SEN - Reid/Angle
CA - SEN - Boxer/Fiorina
WA - SEN - Murray/Rossi
AK - SEN - McAdams/Miller/Muhrkovsky*
*I refuse to provide aid and comfort by spelling correctly