GM150 Dynamometer Instructions

The dynamometer is a steel frame with an internal device for measuring grip strength and displaying values on the screen. The device has two handles. It uses two AAA batteries. When the battery is low, the screen will display and flash a "-" indicator, followed by the "Lo" symbol. When the low battery indicator appears, you need to replace the batteries with new ones. To replace the batteries, unscrew the cover on the back side. The electronic part of the dynamometer is manufactured and calibrated in factory conditions. Everything else is handmade. This means there may be minor manufacturing imperfections on the frame that do not affect functionality.

The GM150 dynamometer is designed for participation in grip strength competitions in the overall ranking and in seasonal competitions.

Seasonal Competitions

The competition season equals one calendar year. It starts on January 1st and ends on December 31st. Results are determined by the sum of both hands' performance.

Medals will be awarded for the first three places in the absolute category and in weight classes. For a weight class to be recognized, there must be at least three participants by the end of the season. The same participant can only compete in one weight class. From 2026, only participants of the competition season will be able to generate certificates.

You can view the ranking of participants for the current competition season via this link. So far, only the Russian version.

1. General Requirements:

1.0. Anyone who has reached the age of majority and has no health contraindications to physical exertion can participate in competitions. Minors can participate with permission from parents or guardians.

1.1. Only the original GM150 dynamometer, version 10, is permitted.

1.2. Disassembling or modifying the dynamometer is prohibited.

1.3. Using the dynamometer with low battery charge is prohibited.

1.4. Using a malfunctioning dynamometer is prohibited.

1.5. The dynamometer must be clean. Chalk may be applied evenly only to the dynamometer handles at the points of contact with hands.

1.6. You must be a member of the Grippermania group on Telegram.

2. Video Recording Process:

2.1. Ensure sufficient lighting, high image clarity, and high detail level.

2.2. Show your face so we can correctly identify you.

2.3. Slowly show the dynamometer from the front, back, left side, and right side. Show it close to the video camera.

2.4. Reset the display readings to zero and show them.

2.5. Position the hand that will be squeezing in the middle of the dynamometer handles.

2.6. The other hand should be moved aside.

2.7. Squeeze the dynamometer handles with one hand and show the result.

2.8. The dynamometer and the squeezing hand must always be in frame.

2.9. Leaning against your body or surrounding objects is prohibited.

2.10. Using wristbands, plasters, or bandages on hands or dynamometer handles is prohibited.

2.11. For participants without reputation: Show full-body weighing on electronic scales, and also show weighing of a factory-made weight plate or kettlebell.

2.12. By the end of the season, participants must have at least the first level of reputation. Results of participants without reputation will be deleted when summarizing results.

3. Result Submission Process:

To submit your result, you need to fill out the form at this link.

You can submit results any day, but they will be processed once a week. One attempt for the right hand and one attempt for the left hand are processed at a time.

Overall Ranking

The rules for the overall ranking are the same as for seasonal competitions, except:

1. You can use the GM150 of any version to participate.

2. Point 2.11. is mandatory only for the first three places in the absolute category and weight classes.

Additional Information

1. If questions arise, the judge may request additional verification of the dynamometer.

2. If a participant ignores the judge's remarks, if a participant starts scandals and conflicts, or if a participant is suspected of fraudulent actions, restrictions may be applied such as temporary suspension from result registration, prohibition of result registration, and deletion of all results from the database.

Rules edition dated 17.05.26