Going

Do favourites run better on soft ground?

Soft-ground form is notoriously hard to fake, and it shows in the favourites. The deeper the ground, the more reliable the jolly becomes, both in strike rate and in actual return.

+8.1% on heavy

Level-stakes SP return backing the favourite on heavy ground (39.5% win rate), versus around break-even on good and a loss on the all-weather.

Favourites firm up as the ground softens

On testing ground, proven stamina and a genuine liking for the conditions separate the field, and that is usually the horse at the head of the market. On quick ground more horses can show speed, so results scatter.

Going	Races	Win rate	ROI at SP
Heavy	11,859	39.5%	+8.1%
Soft	26,247	37.1%	+5.0%
Good To Soft	21,194	35.9%	+3.1%
Good	49,844	35.5%	+0.4%
Good To Firm	25,818	35.7%	+0.1%
Standard	36,259	34.2%	-4.7%

A real but modest edge

Even the best band (heavy) is a small edge on a big sample, not a licence to print money. But the direction is consistent and it tracks the jumps season, where soft ground and stronger favourites go together.

If you lean on favourites at all, the data says do it when the mud is flying, not on a quick summer surface where the form is looser.

It also flags the all-weather (standard going) as the toughest place to trust a short price, worth remembering on a winter Friday night card.

See where the model thinks the market is wrong

The Overlay is a free, data-driven UK and Irish racing model. It looks for the gap between a horse's true chance and its price, logs every selection before the off, and settles in public, win or lose. It is not a tipster, and it tells you when to sit a race out.

Explore The Overlay

Method, in plain English

The starting-price favourite in every race 2010 to June 2026, grouped by the going returned. Win rate is favourite wins divided by races; ROI is level-stakes SP return. Goings with fewer than 2,000 races are excluded. Historical and for information only.