What a camera can see in a dumbbell snatch
A dumbbell snatch drives a single dumbbell from between the feet to a locked-out overhead position in one movement. The rubric scores the elbow angle at the finish, the hip angle at the top of the pull, and how quickly the concentric phase completed. Because it usually appears in workouts rather than in strength sessions, consistency across the set is scored too — the drop between the fastest and slowest rep. Front, back, side and oblique views are all accepted, which is unusual and reflects how this movement gets filmed in practice.
How ScoreRep scores a dumbbell snatch
The rubric declares 4 scored criteria. The strongest single camera angle is the left side view. Every criterion below is available from that angle.
The score is the points earned divided by the points the recorded angle could support, so a clip filmed from a limited angle is never quietly marked down for what the camera could not see. At least 60% of the applicable weight has to be measured before a result is ranked at all.
| Criterion | Points | Measured from the athlete’s pose | Full marks when |
|---|---|---|---|
| Overhead lockout | 35 | elbow angle in the finish position | 165° or more |
| Hip extension | 25 | largest hip angle in the rep | 168° or more |
| Explosiveness | 25 | time taken by the lifting phase | 0.8s or less |
| Consistency across the set | 15 | drop in rep speed between the fastest and the slowest rep | 15% or less |
Criteria that depend on the camera angle
These criteria are excluded, not estimated, when the recorded angle cannot support them. That is why the same set filmed twice from different positions can produce two valid scores out of two different totals.
- Hip extension — needs a left side, right side, left oblique and right oblique view.
Does this dumbbell snatch rep count?
ScoreRep answers that in two separate steps. First, the clip has to read as a dumbbell snatch at all: every check in the table below has to pass, and a reading the camera could not take counts as a fail, never as a pass. A clip that fails is returned unranked with the reason attached, rather than scored low against the wrong rubric, and no template can override a failed check.
Second, the scoring criteria award points. Falling short of a full-marks threshold costs points, not the rep. Every number here is read from version 2 of the dumbbell snatch rubric, the same file the scoring engine runs.
- Compare the dumbbell snatch standard with the other 29 movements on the movement standards page.
- How the rep counter decides between a valid rep and a no-rep, station by station.
| Reading | Has to be | Otherwise rejected because |
|---|---|---|
| Vertical travel of the wrists across the rep | 0.08 or more | the dumbbell does not travel far enough vertically |
| Whether the hands finish above the shoulders | yes | the dumbbell does not finish overhead |
| Elbow angle in the finish position | 155° or more | the elbow is not extended overhead at the finish |
| Largest hip angle in the rep | 150° or more | the hips do not extend, so no pull was detected |
What the recording has to contain
Eligibility decides whether a result can enter a leaderboard. Failing it does not block the feedback — the clip is still scored and returned, but marked unranked with the reason attached, so a bad camera position never silently becomes a bad score.
- A pose has to be detected in at least 55% of the frames.
- The camera angle has to be one of: left side, right side, left oblique, right oblique, front and back.
- At least 1 complete repetition has to be detected.
What is deliberately not scored
Identity, repetition counting, eligibility and the score are derived only from the athlete’s pose. Measurements that come from tracking an external object — the path of a barbell, for example — are drawn on the review overlay but are deliberately outside the scoring contract, so they never affect the number.
Reading the result
In a long set, the consistency criterion tells you more than the lockout one. Athletes hold overhead position well past the point where their pace collapses, so a stable lockout score with a falling consistency score is the normal signature of a set taken too fast at the start. Use it for pacing decisions rather than as a technique verdict.
A technique score is educational feedback about visible movement. It cannot tell you whether a load is safe for your joints, whether pain means something, or whether a programme suits you. Those judgements need a coach or clinician who knows your history.