What does "bet to show" mean in horse racing?

It is a North American pari-mutuel wager that pays out if your selection finishes first, second or third. The dividend is decided after the race by dividing the show pool, minus the track's takeout, among the winning tickets. Because three positions share the pool, the show dividend is materially smaller than the win dividend on the same horse. It is standard at every American thoroughbred track but does not exist as a named market on UK fixed-odds slips.

Does a show bet exist with UK bookmakers?

Not as a named product. UK bookmakers offer win, place-only and each-way markets at fixed odds, and the Tote runs win and place pools as the British pari-mutuel option. There is no separate show pool on a British meeting. For top-three cover on a UK race, an each-way slip on a race that pays three or more places is the closest functional equivalent. To bet to show on an American race from Britain, a few UK operators offer pool access into the US tote.

What is the closest UK equivalent of a show bet?

The each-way bet, in most cases — it pays out on a top-three or top-four finish depending on field size, alongside the win outcome. The place-only bet is closer in spirit because it ignores winning, but each-way is the dominant UK product. Both are fixed-odds rather than pool-driven, which is the structural break from the American show.

How many places are paid in a typical British race?

It depends on field size and on whether the race is a handicap. Five to seven runners pays two places. A non-handicap with eight or more pays three places at one-fifth. A handicap with 16 or more pays four places at one-quarter. Festival races, particularly the Grand National, see operators promoting extra places as a marketing weapon.

Can I place a show bet on the Kentucky Derby from the UK?

Not in the pure North American sense from a standard UK bookmaker's slip. You can place an each-way bet on the Derby with a UK fixed-odds operator at the published place terms, or, if your operator offers it, route a wager into the American pari-mutuel pool, which is the only way to buy a show ticket at the US dividend. The two routes settle at different prices.

Are show odds lower than win odds the way each-way returns are?

Yes, for similar mathematical reasons. A show pool dividend is smaller than the win pool dividend because the pool is shared three ways. An each-way place return is smaller than the win return because it is a fraction, typically one-quarter or one-fifth, of the win odds. Both buy broader cover at a lower per-outcome price.

Is "across the board" the same as an each-way bet?

Closely related, not identical. Across the board is American shorthand for placing equal-stake win, place and show bets on the same horse — three separate pool tickets. An each-way is two stakes — win plus place — on one British slip at fixed odds, with no third show leg. Across the board buys three layers of cover; each-way buys two.