A mobile start releases the field at racing speed from behind a moving vehicle, the mobile barrier, with each horse in its drawn place. A standing start begins from a standstill behind a barrier at the start line, and the horses usually line up on handicap marks set in metres behind the front. The mobile is the default in Australian harness racing: rule 142 of the Australian Harness Racing Rules (AHRR 142) sets it, and only the controlling body or the chairman of stewards can approve a different start.
The start type changes what you are betting on. From the mobile, the draw and early speed decide the first lap. From a stand, the questions are whether a horse leaves cleanly at its gait and how much ground its mark costs. Harness racing betting sets the start beside the draw, positions and form.
How a mobile start works
The mobile is a vehicle with arms that reach across the track. The stewards approve it and the starting points, which are marked on the track (AHRR 143 and 144). The horses score up behind it in their barrier positions, then it accelerates away at the starting point and the race is on. A driver must reach the gate by the candy pole or other nominated marker, hold position behind it and never let the horse past the arms once the score-up has begun (AHRR 162).
The Chief Steward decides how many horses start abreast, and draws that do not fit go behind the front line (AHRR 130). The form prints the two rows as Fr and Sr. Harness Racing Australia's (HRA) track pages show how much the front line varies (checked October 2026). Canberra lists 6 abreast in a mobile field of 10 and Albion Park 7 abreast in a field of 12, so full fields put four and five horses on the second row.
The starter can call a false start if a horse causes interference, falls, breaks gear or scores up in front of the gate or in the wrong position (AHRR 141(1)). A horse counts as having taken part once it faces the mobile and the mobile starts to move (AHRR 128(3)). Harness racing barrier draws measures what each row and barrier has been worth.
How a standing start works
In a standing start the horses are drawn up by handicap, and horses on the same mark line up in their barrier order (AHRR 130). The front, printed FT, is the mark for horses with no handicap. HRA's form guide adds the handicap in front of the barrier on a standing-start line. FT Sr1 is a front-marker on the second row of that mark, and 10 Fr2 is a horse 10 metres back, second from the inside on its mark.
HRA's Australian Handicapping Rules (version of 1 January 2026) define two kinds of handicap:
| Handicap type | How marks are set | Rule |
|---|---|---|
| Automatic handicap | 5 rating points equals 10 metres: horses rated at the race's front start from the front, those 5 points higher from 10 metres, and so on | 2.4 |
| Discretionary handicap | The handicapper sets the marks, in steps of 10 metres, or 5 metres after the 10 metre mark | 2.11 |
A Classic, for 2, 3 or 4-year-olds of one age or sex, starts every horse from the front (rule 2.6), and each controlling body specifies how its standing-start races are handicapped (rule 8.1).
A horse counts as having started once it faces the standing start barrier when the starter directs (AHRR 128(4)). A horse re-handicapped after the draw goes on the outside of the horses on its new mark (AHRR 137).
Which races start from a stand
The mobile dominates. Of the 3,509 races in HRA's results for TAB meetings between 1 July and 30 September 2026, 119 (3.4%) started from a stand:
| Races | Standing starts | Share |
|---|---|---|
| Trotting | 81 of 429 | 18.9% |
| Pacing | 38 of 3,080 | 1.2% |
Queensland ran the most standing starts (38) and NSW the fewest (6).
The most common standing-start trips were 2,138 m at Albion Park (30 races, 28 of them for trotters) and 2,230 m at Globe Derby Park (18, 17 of them for trotters). Standing starts are used most for trotters and for handicap races over middle and longer trips.
Track pages show the pattern too. Melton's shortest trip, 1,200 m, is listed for mobile starts only, and Bunbury lists a single standing-start trip, 2,503 m (checked October 2026). Feature races can use either start, so read the conditions: the feature calendar is in major harness races in Australia.
Which start carries more risk of a bad beginning
From the mobile a horse is already moving at its gait when the race starts. From a stand it has to reach racing speed without breaking, and a horse that gallops away loses ground at once. Harness Racing Victoria's guidelines spell out what a satisfactory standing start is (clause 12.4.2, checked October 2026): no delay through intractability, leaving the barrier at the correct gait, and getting through the first 100 metres without losing gait or rhythm.
HRA's stewards' comments for July to September 2026 show where each start goes wrong:
| Starts | Broke at or just after the start | Broke in the score-up | Began badly | Any of these, counted once |
|---|---|---|---|---|
| Trotters from a stand (687) | 37 (5.4%) | none possible | 18 (2.6%) | 53 (7.7%) |
| Trotters from the mobile (2,885) | 108 (3.7%) | 85 (2.9%) | 54 (1.9%) | 242 (8.4%) |
| Pacers from a stand (371) | 9 (2.4%) | none possible | 2 (0.5%) | 11 (3.0%) |
| Pacers from the mobile (27,690) | 221 (0.8%) | 317 (1.1%) | 33 (0.1%) | 562 (2.0%) |
The mobile has a risk of its own: a break in the score-up, before the race starts, which can leave a horse out of position. Count those and trotters met early trouble a little more often from the mobile, 8.4% against 7.7%, while pacers met more from a stand, 3.0% against 2.0%. Both gaps are within luck for samples this size, so a trotter's own record from each start says more than the start type.
A horse whose intractability causes two false starts is withdrawn automatically and treated as a late scratching (AHRR 141(4)). The stewards can also send a horse that misbehaves at a standing start to the outside of the draw, and ban a repeat offender from standing-start races (AHRR 134).
For a bet, a bad beginning usually brings no refund: a horse that faced the start is a starter (AHRR 128) unless the stewards rule otherwise, for example that it was denied a fair start (AHRR 141(1)(b)). Your bookmaker's terms decide how each bet then settles.
HRA's form guide shows each horse's record at the race's start type beside its career record, a Stand line in a standing-start race, and marks each past run MS or SS. Compare the Stand and Career lines before you trust mobile form. Trotters vs pacers covers how breaks differ between the two gaits.
What a handicap costs in time and ground
A back mark is extra distance, run at the race's speed, so turn it into time:
speed = 1,609.344 / mile rate in seconds; time = metres / speed
| Illustrative mile rate | Speed | 10 m | 20 m | 30 m |
|---|---|---|---|---|
| 2:01.5 (121.5 s) | 13.25 m a second | 0.75 s | 1.51 s | 2.26 s |
| 2:04.0 (124.0 s) | 12.98 m a second | 0.77 s | 1.54 s | 2.31 s |
To finish level with a front-marker, a horse off a mark has to run a faster mile rate over the longer trip:
mile rate needed = front-marker's mile rate x distance / (distance + handicap)
Over an illustrative 2,600 m at 2:01.5, a horse off 20 m needs 121.5 x 2,600 / 2,620 = 120.57 seconds, about 2:00.6, or 0.93 seconds a mile faster than the front-marker.
Better horses get the back marks, so a mark is not a bad sign by itself. In the July to September 2026 results, horses off 20 m won 29 of 201 starts (14.4%), more than their share of the fields, while front-markers won 34 of 409 (8.3%).
Worked: pricing a 20 m handicap in a standing-start race
Example: Illustrative figures, not a real horse or a current market. Runner 6 has had 12 standing starts against fields like today's, all off the front. It won seven, by 31.4, 26.2, 21.5, 14.8, 9.6, 4.1 and 0.7 m, and was beaten in the other five by 2.3 to 18.6 m. Today it starts off 20 m, with every rival on the front.
Count how many of those runs would still have won with 20 m to give:
| Past runs off the front | Count | With 20 m to make up |
|---|---|---|
| Won by more than 20 m (31.4, 26.2, 21.5) | 3 | Still wins, by 11.4, 6.2 and 1.5 m |
| Won by less than 20 m (14.8, 9.6, 4.1, 0.7) | 4 | Now beaten |
| Beaten | 5 | Still beaten |
| Off the front | Off 20 m | |
|---|---|---|
| Chance | 7 / 12 = 58.3% | 3 / 12 = 25.0% |
| Fair price (1 / chance) | $1.71 | 1 / 0.25 = $4.00 |
| Value of $10 at $3.30 | 10 x (0.25 x 3.30 - 1) = -$1.75 | |
| Value of $10 at $4.40 | 10 x (0.25 x 4.40 - 1) = +$1.00 |
The method assumes Runner 6 runs the same race from behind, which it may not: a back-marker can find a trail or be caught wide getting round the field. Twelve runs is a small sample, so treat $4.00 as rough.
Risk: Betting involves risk. A count of past margins is a rough guide, Runner 6 still loses 75% of the time at your own estimate, and there is no guarantee of profit. See responsible gambling for limits and support.
Mistakes with the two starts
- Trusting mobile form from a stand. A Stand record of two or three starts beside a long career record says little about how a horse begins.
- Mapping a standing start like a mobile one. Without the mobile, gate speed matters less than how cleanly a horse leaves.
- Expecting money back after a bad beginning. A horse that faced the start has started.
Before you bet a standing start
Check the start type, each horse's Stand record and its mark. The Terminal shows prices from 40+ bookmakers across racing and sports, and flucs (price history) show how each price has moved. The handicap maths stays with you: B337 compares prices and is not a form guide.
A standing-start price can move right up to the jump, and the board reads prices on a repeating cycle, so confirm the price in your bookmaker account before you bet. A free account opens a limited view of the Terminal with live odds. Bookmaker names are trade marks of their owners. B337 is not affiliated with them.
Risk: Betting involves risk. Standing starts add a bad beginning to everything else that can go wrong, and a price above your estimate can still lose. For free and confidential support call 1800 858 858 or visit gamblinghelponline.org.au. See responsible gambling for limits and support.