Competitors must cling onto a vertical log (60 cm thick) with their arms and legs, while it slides down a nine meter track to the landing platform. The log contains many small indentations to provide some grip.
The track is similar to the one previously used for the Sandan Rolling Maruta, but:
- The drops are bigger and the track is longer
- The drops are closer together, almost eliminating a chance to recover from the previous drop.
SASUKE 21-25 Version
In SASUKE 21, the Log Grip was modified. The actual log was placed lower to the platform and a new mechanism was engineered where once a competitor applied his or her weight, the log would start down the track.
This was proven to make the log much easier to start, but in contrast, competitors would fail more because of the speed and shock of the drops.
It was the second obstacle initially, but became the third obstacle from SASUKE 22 to SASUKE 24, when these three obstacles took its previous position as the second obstacle throughout the three tournaments:
SASUKE 29-30 Version
The Log Grip returned for SASUKE 29 as the second obstacle, replacing the Rolling Escargot from the previous tournament. However, the obstacle had two ledges to hang on instead of the holes in the previous versions. For male competitors, the ledges were taller than the ledges used for female competitors. This modification made the obstacle extremely easier, as many competitors were placing their hands on top of the ledges, providing an extra grip. As the result, fewer competitors failed here.
SASUKE 31 Version
Minor modifications were made to the Log Grip in SASUKE 31:
- The track was steeper, and
- The drops were much larger than usual, which forced competitors to hold on tightly to prevent themselves from falling off the log.
American Ninja Warrior Appearances
The Log Grip made its first appearance on American Ninja Warrior 3, as the second obstacle during qualifying and semifinal, but the log was much thinner and the track was much shorter than the one in SASUKE.
Then, the obstacle returned as the second obstacle in every qualifying region on American Ninja Warrior 4. This time, the log was thicker and made out of wood.
After one season hiatus, the Log Grip returned as the second obstacle in Dallas on American Ninja Warrior 6, but with four handles instead of holes (two on each side) and only one drop on the track. The handles version later returned as the second obstacle in Pittsburgh on American Ninja Warrior 7, but with two drops again.
On American Ninja Warrior 8, the same version of the Log Grip from the previous season returned as the second obstacle in Philadelphia. Later on that season, the Log Grip returned in the form of the Giant Log Grip, as the third obstacle in Stage One, replacing the Silk Slider from the past two American Ninja Warrior seasons. This version had four handles as usual, but:
- The obstacle has a 52 feet long track, with three drops, and a dismount onto a small landing pad, floating in the water.
- The log also twisted around at the end of the track.
- Competitors also had to time their landing correctly or let the log stop swinging to land.
This version of the Log Grip was proven to be much lethal, as several competitors either lost their grip or couldn't time the dismount properly. Although only 12 competitors failed on this obstacle, it eliminated several top competitors (e.g. Jo Jo Bynum, Adam Arnold, Meagan Martin, Brent Steffensen, Kevin Bull, and Jamie Rahn).
The Log Grip has been used on several SASUKE/Ninja Warrior's international formats, including:
- Ninja Warrior UK (similar to American Ninja Warrior 6-8 version),
- Australian Ninja Warrior (similar to American Ninja Warrior 6-8 version),
- SASUKE Ninja Warrior Indonesia (similar to SASUKE 29-31 version), and
- SASUKE Vietnam (similar to SASUKE 29-31 version, and was called locally as Bám Trụ or Ôm Trụ).
Competitor's Success Rate
All results based on the TBS broadcast and external information found