BetterDarts.AI — How To Throw Better: the Fundamentals

Darts isn't a power sport or even, at its core, an accuracy sport — it's a repeatability sport. Every fundamental below ends in the same word: same stance, same grip, same rhythm, same release. Here's the whole throw, piece by piece — and how to actually measure each piece on video instead of guessing.

1Stance

Stand side-on or at ~45° to the board, dominant foot forward against the oche carrying most of your weight (roughly 60–75%). The back foot is a stabilizer, not a power source. Your weight should not shift during the throw — no rocking forward, no rising onto your toes at release.

Head steady, eyes locked on your exact target — not "the 20," but the precise spot in the 20 you want. Aim at a point, never a region.

📐 Measure it: in the Analyzer, watch the hip and ankle dots of the stick figure during your throw — on a stable stance they barely move.

2Grip

Hold the dart at its center of gravity with 2–4 fingers — firm enough to control it, loose enough that it can leave your hand cleanly. Tension is the enemy: a white-knuckle grip causes late, snatchy releases.

Which grip you choose matters far less than using the same grip on every single throw. Pick one that feels natural and stop changing it.

3The setup position

Raise the dart so your upper arm is roughly parallel to the floor and your elbow points at the board. From here on, think of your elbow as a hinge on a fixed pivot — that one idea is the entire model of a good dart throw. The body stays frozen; one forearm does the work.

📐 Measure it: the Analyzer draws a cyan elbow path next to the pink wrist arc — a true hinge leaves a tight little knot, a drifting elbow leaves a smear. The elbow drift readout puts a number on it (% of torso length; single digits = anchored), and elbow anchoring is worth 25 of the 100 Throw Score points.

4Backswing

Draw the dart back toward your face or shoulder by folding at the elbow only. The elbow itself stays put in space. Smooth and unhurried — the backswing sets your rhythm, and a rushed flinch here echoes through everything after it.

📐 Measure it: the Analyzer reports your backswing elbow angle (a real backswing folds to ~80° or less — worth 20 Throw Score points) and your tempo — the time from the deepest backswing to release. Great throwers repeat their tempo within a few hundredths.

5Acceleration & release

Unfold the elbow, accelerating smoothly — the hand speeds up through the throw rather than jerking. The wrist adds a small natural snap at the end. Release at a consistent point in the arc: the dart should leave your hand with your arm at the same extension, throw after throw after throw. That repeatable release point is the single biggest driver of tight grouping — when it wanders, shots scatter vertically.

A small elbow rise near release is normal and fine. What you don't want is the elbow dropping or drifting sideways mid-throw.

📐 Measure it: the Analyzer finds your release point automatically (peak hand speed), labels the elbow angle at release, and — in the 3-throw comparison — shows the spread of that angle across a turn. A spread within a few degrees is what "repeatable" looks like in numbers. It also measures your release angle — the launch direction in degrees above horizontal, live in the sidebar and per throw in the comparison; a steady launch angle across all three darts is the goal. The bright pink wrist path (turn on "Keep full paths") should draw nearly the same arc every throw.

6Follow-through

The arm keeps extending toward the target after the dart is gone, finishing long, fingers pointing roughly where you aimed. Stopping short or snatching the hand down is one of the most common amateur faults — and it back-propagates into an early, inconsistent release. Think of the follow-through as insurance for everything that came before it.

📐 Measure it: the Analyzer tracks your follow-through extension — you're looking for the elbow reaching 160°+ after release. It's the biggest single slice of your Throw Score at 30 of 100 points.

7The one that outranks the rest: repeatability

A "flawed" throw executed identically 90 times a night beats a textbook throw executed inconsistently. Practice isn't about finding the perfect throw — it's about shrinking the variation in yours. Quiet shoulder, anchored elbow, one rhythm, one release, every time.

📐 Measure it: this is exactly what the Throw Score /100 rewards — 60% mechanics (follow-through 30 · shoulder 25 · elbow anchor 25 · backswing 20), 40% consistency (release spread 65 · tempo 35), with every component itemized on screen so you know which dial to work on next. Analyze a full turn and you also get a dedicated Repeatability /100 — it overlays your three wrist paths on a common clock around each release and scores how closely they trace the same arc (arm path 40 · release 20 · launch angle 20 · tempo 20): the numeric twin of the 3-throw overlay. And your Practice Tracker average over weeks is the ultimate repeatability scoreboard.

📊What the numbers should look like

Every measurement the Analyzer reports, with the range you can expect to see and what a good throw reads like. Rows marked ⚠ read inflated when you film front-on — the camera-limited scoring already compensates, but side-on footage shows your true numbers.

Measurement	Typical range	Good looks like	Notes
Release elbow	100–170°	consistent, usually 120–150°	The exact value matters less than repeating it — the spread across 3 throws is what's scored (a few degrees = full consistency points).
Backswing	40–90°	~60–80° fold	Measured only after the arm is up in the set position. A reading over ~100° usually means the camera angle hid the fold, not that you didn't fold.
Follow-through	120–180°	160°+	The biggest single score slice (30 pts). Under ~140° = the arm stopping short or snatching down instead of finishing toward the target.
Tempo	100–500 ms	anything — repeated	Deepest backswing → release. Flowing throws run 300–500 ms, snappy ones 100–200 ms. Scored on spread: within ~50 ms across the turn = full points.
Release angle	−10° to +25°	steady, usually 5–20° up	The dart's launch direction vs horizontal — slightly upward is normal since the dart flies an arc. Consistency across throws beats any particular value.
Elbow drift ⚠	3–30%	single digits	% of torso length the elbow wanders during the throw. 30%+ side-on means the hinge itself is moving. Front-on filming reads 2–3× too high.
Shoulder range ⚠	3–30°	≤8°	How much the shoulder joint opens during the throw — a quiet shoulder stays nearly frozen. Reads huge from a front-on camera for geometric reasons.
Peak hand speed	4–8 torso/s	5–7	Fairly universal across skill levels — informational, not scored. Readings above ~12 are treated as tracking artifacts and ignored.

Sanity check: a throw whose numbers land wildly outside these ranges (hand speed above 12, tempo of 0 ms, backswing equal to release elbow) means the tracker lost the body for a moment — re-film that throw rather than chasing the numbers.

!Common faults, in the order coaches see them

Gripping too tight — tension delays the release and adds snatch.
Elbow moving in space — the hinge drifts, so the arc changes every throw. (Watch the cyan elbow path: knot good, smear bad.)
Snatched or missing follow-through — the arm stops instead of finishing long.
Weight rocking at release — the whole platform moves under the throw.
Aiming at a region — "the 20" instead of a precise spot in it.

Film a throw and see your fundamentals

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