This short was featured in a Cartoon Network video, synced to Soul Coughing's song "Rolling".
Betty pulls out a box of cough drops with two bearded men pictured on it. It is in the same design as Smith Brothers cough drops.
Koko the Clown, another character from the Fleischer studios, appears as one of the contestants in the race.
One of the grandstand characters gets shoved into an old fashioned spittoon. These can still be found in some establishments today, though mostly as a decorative historical piece.
The animal related sight gags shown here are still classic, 90 years later. The giraffe and monkey film camera sequence is just one example.