Welcome to the Jalopnik Weekend Motorsports Roundup, where we let you know what's going on in the world of racing, where you can see it, and talk about it all in one convenient place. Where else would you want to spend your weekend?

Just one more week until the start of the 2013 Formula One season! Are you guys super excited? I know I am. Until then, we have a pretty decent weekend of racing on tap, including NASCAR at Las Vegas and a replay of last week's Grand-Am festivities at the Circuit of the Americas in Austin, in case you missed that.

As always, let us know about anything we missed, or about good livestreams out there, in the comments.

All times Eastern.

Las Vegas Motor Speedway

Las Vegas, Nevada

12 p.m. on SPEED

Las Vegas Motor Speedway

Las Vegas, Nevada

1 p.m. on SPEED

Las Vegas Motor Speedway

Las Vegas, Nevada

2:30 p.m. on SPEED

Las Vegas Motor Speedway

Las Vegas, Nevada

4 p.m. on ESPN2

Circuit of the Americas

Austin, Texas

(Race from March 2)

4 p.m. on SPEED

Daytona International Speedway

Daytona, Florida

7:30 p.m. on SPEED

Las Vegas Motor Speedway

Las Vegas, Nevada

2:30 p.m. on FOX