137 Checkout in Darts — T20 → T19 → D10
137 is one of the high-value finishes in 501 — a score where the first dart needs to carry both precision and commitment from the moment it leaves the hand. The route runs T20 → T19 → D10, closing on D10 — a reliable double that rewards clean approach play. From this score, the margin for error on the opening dart is narrow: a clean T20 keeps the route fully intact, while a slight miss forces an immediate decision about the best available continuation.
The preferred miss direction on T20 from 137 is toward 5. Landing there leaves 132 — a position that still carries a realistic path to the close. The 1 side leaves 136 and a harder problem. Players who pay attention to miss geometry on their primary scoring targets consistently produce better outcomes from imperfect darts, which is where most of the marginal gains in competitive 501 are actually found — not in perfect throws, which are the same for everyone, but in where the imperfect ones land.
Players who are reliable at finishing 137 in competition have usually identified and eliminated one specific failure pattern from their game: the tendency to respond to what just happened rather than commit to what comes next. If the first dart misses, the instinct is to adjust — to be more careful, to aim more precisely, to compensate. That instinct is the source of most dropped legs on 137. The route provides the continuation from any reasonable first-dart outcome. Trusting the route rather than overriding it mid-visit is the discipline that converts practice form into match results.
Pressure at 137 creates one specific temptation: to do more. More care, more deliberation, more force. All of it produces the miss it was trying to prevent. The grip is where pressure enters the throw first. Noticing grip tension before stepping to the oche is the earliest point at which the miss can be prevented. Breathe before the throw. Under pressure, shallow breathing is the norm — and it changes every aspect of the physical execution in ways that are difficult to compensate for. Players who finish 137 consistently in competition are not naturally calmer than those who miss it. They have simply rehearsed the response to pressure enough that it no longer interferes with the mechanics. At 137, the most reliable approach is not the most aggressive one. It is the most consistent one. The player who holds the same tempo through all three darts wins the leg.
Triple-start routes under pressure reward the player who commits earliest. Hesitation at T20 is the most common cause of dropped legs from 137.
Route Comparison & Target Selection
Primary: T20 → T19 → D10
treble 20 (60), treble 19 (57), closing on double 10 — solid close
Alternate: T19 → T18 → D13
treble 19 (57), treble 18 (54), closing on double 13
The close is where these routes diverge. The primary (T20 → T19 → D10) arrives at D10, a higher-percentage double. The alternate (T19 → T18 → D13) arrives at D13, which is less forgiving on the final dart. The miss geometry on T20 is asymmetric — the 5 side leaves 132 and the 1 side leaves 136, so the preferred drift direction is toward 5. For most match situations, the primary's stronger close makes it the better default. Consider the alternate only when the primary's specific approach is not landing well — the trade is a more familiar line for a weaker finishing double.
Avoid 1 on this visit. It leaves 136 — the weaker of the two available miss directions. Better miss is 5 for 132.
Miss Geometry, Route Structure & When to Use the Alternate
The geometry around treble 20 is the most punishing on the board for missed triples. The 5 and the 1 sit either side of it — neither useful as a recovery segment from 137. A miss left into 5 leaves 132; a miss right into 1 leaves 136. The route opens on treble 20 because the scoring efficiency justifies it when the darts are landing in the bed. When they are not — when grouping drifts low consistently — switching to treble 19 corrects the geometry. The 3 and 7 that flank the 19 score more than the 5 and 1, and more often leave a position from which the leg can still be closed cleanly. That structural upgrade is the reason the switch is taught as a deliberate skill, not a fallback. Making the decision before stepping to the oche, and executing it with full commitment, is the competitive standard. Considering the route structure, from 137 the route needs three darts: T20 → T19 → D10. T20 is the scoring dart, T19 is the positioning dart, and D10 is the close. That structure exists because the score does not allow a shorter path. The positioning dart (T19) is particularly critical: arriving at D10 in control of the close requires that T19 lands exactly where the route requires, not approximately there. Understanding why each dart appears in the sequence — rather than treating the route as a single action — is part of executing three-dart finishes reliably in competitive play. Where the alternate comes in, finishing on D10 gives the primary a closing advantage over the alternate's D13. In match play, arriving at a stronger double through the same general route structure is a real edge — the primary provides it. The alternate (T19 → T18 → D13) is the route adjustment when the primary's approach is not landing as expected, but when both are available, the primary's better close makes it the correct default.
When and Why to Use This Route
Use this route as the primary approach from this score. D10 is achievable from a controlled visit and responds to a committed throw even when the approach is not perfect. The route does not require ideal conditions to work — that reliability is the point.
The route works by combining a practical opener with a dependable close. T20 is not the most aggressive start available but it is reliable and produces a workable leave. D10 is not the easiest close on the board but it is a solid double that responds to a committed throw. The combination is the most practical available structure from this score — not flashy, but consistently effective.
Why Players Miss This Finish
Players miss the 137 checkout by losing control of the visit on the second dart, not the first. T20 lands well and the position looks good — then, instead of committing fully to T19, the player is already thinking about D10. The second dart becomes distracted: aimed partly at T19 and partly at the result it will produce. That distraction costs accuracy. The dart lands somewhere other than intended, and the close on D10 is either harder than it should be or no longer available. Players who drop 137 regularly from a clean T20 are almost always losing the leg on dart two, not dart three.
Players who close 137 most reliably have solved the same problem: they have made the response to an imperfect dart automatic. When T20 lands slightly off, the right response is to read the new score immediately and throw the best available continuation without hesitation. That response is not instinctive — it is trained. Practising the recovery from the two most likely miss positions on T20 is the most direct way to reduce the number of legs dropped from a recoverable position on 137.
Practice
Practise the 137 checkout as a complete sequence — T20 → T19 → D10 — rather than drilling each dart in isolation. The rhythm between darts is as important as the accuracy of each individual throw. Players who practise T20 separately, then T19 separately, then D10 separately, and then combine them in a match often find the transition between darts is the problem, not the darts themselves. Run the full route in sets: three successful completions before stopping, or a conversion rate target like two clean legs in five attempts.
Recovery practice is not supplementary to 137 training — it is essential to it. The two most likely recovery positions from a miss on T20 are 132 (via 5) and 136 (via 1). Practising both of these scores alongside the full 137 route produces a player who can continue the visit without recalculation after an imperfect first dart. That continuation speed — the automatic response to a slight drift — is one of the most valuable and least-practised skills in club-level 501.
