Australian racing

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Anbell
Posts: 2049
Joined: Fri Apr 05, 2019 2:31 am

Thanks.

I dont really have a rule of thumb for the magnitude of the change of matched vs % of the fave (apart from that it is positive)

Does anyone have a heuristic?
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PDC
Posts: 2272
Joined: Sun Jul 24, 2016 5:52 pm

Found Randwick poor. The TO charge just kills it for me.

Caulfield was very good good and picked up some other good results along the way.

Time for some sleep before the afternoon fare at Ascot. Brilliant afternoon of racing awaits.
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Euler
Posts: 24806
Joined: Wed Nov 10, 2010 1:39 pm
Location: Bet Angel HQ

PDC wrote:
Sat Oct 16, 2021 8:14 am
Found Randwick poor. The TO charge just kills it for me.

Caulfield was very good good and picked up some other good results along the way.

Time for some sleep before the afternoon fare at Ascot. Brilliant afternoon of racing awaits.
Ditto
Phrend
Posts: 1
Joined: Tue Oct 19, 2021 11:46 am

Hi All,

I'm new to trading so wanted throughts on the following - hopefully this is the right forum.

Tomorrows Geelong Cup - Tralee Rose very strong favourite - Lay $30 @ 2.30 liab of around $40

Back it for the Melbourne Cup $30 @ 30 = $925.

If it loses (in a big field) tomorrow you break even minus some comission.

If it wins then it's likely its odds halve so you can either trade to freeroll for something like $200 - $500 or take a small profit whatever floats your boat. Many winners of the Geelong Cup have gone on to win the Melbourne Cup.

Worst case scenario - it wins but gets injured on the line. 2nd worst is that it gets scratched before tomrrows race - you are out $30 on the cup?

Thoughts....
PapaShango
Posts: 85
Joined: Thu Apr 29, 2021 2:41 pm

Phrend wrote:
Tue Oct 19, 2021 12:09 pm
Hi All,

I'm new to trading so wanted throughts on the following - hopefully this is the right forum.

Tomorrows Geelong Cup - Tralee Rose very strong favourite - Lay $30 @ 2.30 liab of around $40

Back it for the Melbourne Cup $30 @ 30 = $925.

If it loses (in a big field) tomorrow you break even minus some comission.

If it wins then it's likely its odds halve so you can either trade to freeroll for something like $200 - $500 or take a small profit whatever floats your boat. Many winners of the Geelong Cup have gone on to win the Melbourne Cup.

Worst case scenario - it wins but gets injured on the line. 2nd worst is that it gets scratched before tomrrows race - you are out $30 on the cup?

Thoughts....

Maybe watch the Geelong Cup with the Melbourne Cup market open on your one click screen and see if your feed and your finger is fast enough.

Or do they suspend the Melbourne cup market whilst the geelong cup is being run ?
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Derek27
Posts: 23636
Joined: Wed Aug 30, 2017 11:44 am
Location: UK

Phrend wrote:
Tue Oct 19, 2021 12:09 pm
Hi All,

I'm new to trading so wanted throughts on the following - hopefully this is the right forum.

Tomorrows Geelong Cup - Tralee Rose very strong favourite - Lay $30 @ 2.30 liab of around $40

Back it for the Melbourne Cup $30 @ 30 = $925.

If it loses (in a big field) tomorrow you break even minus some comission.

If it wins then it's likely its odds halve so you can either trade to freeroll for something like $200 - $500 or take a small profit whatever floats your boat. Many winners of the Geelong Cup have gone on to win the Melbourne Cup.

Worst case scenario - it wins but gets injured on the line. 2nd worst is that it gets scratched before tomrrows race - you are out $30 on the cup?

Thoughts....
If it wins and halves for the Melbourne, you lose $40 on the Geelong and your trade on the Melbourne only gains $30 in value, so any gain is lost in the cost of insuring your stake money.
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gazuty
Posts: 2547
Joined: Sun Jun 26, 2011 11:03 am
Location: Green land :)

Derek27 wrote:
Tue Oct 19, 2021 8:48 pm
Phrend wrote:
Tue Oct 19, 2021 12:09 pm
Hi All,

I'm new to trading so wanted throughts on the following - hopefully this is the right forum.

Tomorrows Geelong Cup - Tralee Rose very strong favourite - Lay $30 @ 2.30 liab of around $40

Back it for the Melbourne Cup $30 @ 30 = $925.

If it loses (in a big field) tomorrow you break even minus some comission.

If it wins then it's likely its odds halve so you can either trade to freeroll for something like $200 - $500 or take a small profit whatever floats your boat. Many winners of the Geelong Cup have gone on to win the Melbourne Cup.

Worst case scenario - it wins but gets injured on the line. 2nd worst is that it gets scratched before tomrrows race - you are out $30 on the cup?

Thoughts....
If it wins and halves for the Melbourne, you lose $40 on the Geelong and your trade on the Melbourne only gains $30 in value, so any gain is lost in the cost of insuring your stake money.
Derek has nailed it here. You want the reverse scenario. You want it to lose the Geelong Cup, collect $30 (ignoring comms) and now you have a "free bet" on the cup. You now cash out on the cup and you are ahead.

Now you need to do an E(x) which should be as follows:

E(x) = [Result if win] * probability of win + [Result if lose] * probability of loss

Result if win

You lose $40 on Geelong Cup. Odds on Melbourne Cup halve to 15. $925/15 = $61 then subtract $30 initial bet and hence you collect $31. You are down ($9).

Result if lose

You win $30 on the Geelong Cup. Odds on Melbourne Cup blow out to 80. $925/80 = $11.56 then subtract initial bet and you are down ($18.44). You are up $11.56

E(x) = ($9) * 0.43 + $11.56 * 0.57
E(x) = ($3.87) + $6.58
E(x) = $2.71

So looks ok (while not every scenario covered). And the biggest unknown is the odds movement on the Melbourne Cup post result, together with injuries etc

A lot of faffing about for $2.71 of value. After comms this could be zero. And then there are edge cases that I haven't covered that could reduce the $2.71 further. (Eg. in the result "if lose scenario" if the odds on the Melbourne cup blow out beyond 135 the E(x) turns negative).

////

And it won, so its the result if win. You'd have to jump ahead of the 17 on offer right now for the MC assuming you are not taking the 34. :shock:

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PapaShango
Posts: 85
Joined: Thu Apr 29, 2021 2:41 pm

Seems like a lot of faffing about for a few cents, and if it runs really badly you might not even be able to lay the 80 anyway.

Might as well just decide whether or not you fancy it for the geelong cup and back or lay accordingly.

Or if you wanted to try and nick a few dollars/cents, watch the race on the fastest feed possible with your mouse hovering over the selection you expect to shorten/drift in the MC depending on how it runs in the geelong.
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PDC
Posts: 2272
Joined: Sun Jul 24, 2016 5:52 pm

Euler wrote:
Sat Oct 16, 2021 7:35 am
Was going to review the numbers later. So that's interesting.
Did you run the numbers?

I saw this data earlier:

Key metrics from Carlton Draught Caulfield Cup last Saturday - domestic wagering turnover $143m (new record) up 11% YoY (2020 $129m, 2019 $97.5m). Heavy 8 v Soft 6 (2 upgrades this year). Starters 106 v 112 LY (down 5.4%)

Total domestic turnover for the 3 days of the Carlton Draught Caulfield Cup Carnival was $297m up 12.4% YoY (2020 $264m, 2019 $215m).
PapaShango
Posts: 85
Joined: Thu Apr 29, 2021 2:41 pm

Didn’t read gazutys post properly this morning. Didn’t realise race had already been run. Bit late trying to be fastest finger now lol
agog
Posts: 55
Joined: Tue Aug 29, 2017 3:55 pm

Just a general query. Are the Australian markets strong/liquid enough to trade pre-off?
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PDC
Posts: 2272
Joined: Sun Jul 24, 2016 5:52 pm

agog wrote:
Wed Oct 20, 2021 12:44 pm
Just a general query. Are the Australian markets strong/liquid enough to trade pre-off?
999 pages of discussion might be a clue ;) read a few pages to get an idea
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Derek27
Posts: 23636
Joined: Wed Aug 30, 2017 11:44 am
Location: UK

gazuty wrote:
Tue Oct 19, 2021 10:26 pm
Derek27 wrote:
Tue Oct 19, 2021 8:48 pm
Phrend wrote:
Tue Oct 19, 2021 12:09 pm
Hi All,

I'm new to trading so wanted throughts on the following - hopefully this is the right forum.

Tomorrows Geelong Cup - Tralee Rose very strong favourite - Lay $30 @ 2.30 liab of around $40

Back it for the Melbourne Cup $30 @ 30 = $925.

If it loses (in a big field) tomorrow you break even minus some comission.

If it wins then it's likely its odds halve so you can either trade to freeroll for something like $200 - $500 or take a small profit whatever floats your boat. Many winners of the Geelong Cup have gone on to win the Melbourne Cup.

Worst case scenario - it wins but gets injured on the line. 2nd worst is that it gets scratched before tomrrows race - you are out $30 on the cup?

Thoughts....
If it wins and halves for the Melbourne, you lose $40 on the Geelong and your trade on the Melbourne only gains $30 in value, so any gain is lost in the cost of insuring your stake money.
Derek has nailed it here. You want the reverse scenario. You want it to lose the Geelong Cup, collect $30 (ignoring comms) and now you have a "free bet" on the cup. You now cash out on the cup and you are ahead.

Now you need to do an E(x) which should be as follows:

E(x) = [Result if win] * probability of win + [Result if lose] * probability of loss

Result if win

You lose $40 on Geelong Cup. Odds on Melbourne Cup halve to 15. $925/15 = $61 then subtract $30 initial bet and hence you collect $31. You are down ($9).

Result if lose

You win $30 on the Geelong Cup. Odds on Melbourne Cup blow out to 80. $925/80 = $11.56 then subtract initial bet and you are down ($18.44). You are up $11.56

E(x) = ($9) * 0.43 + $11.56 * 0.57
E(x) = ($3.87) + $6.58
E(x) = $2.71

So looks ok (while not every scenario covered). And the biggest unknown is the odds movement on the Melbourne Cup post result, together with injuries etc

A lot of faffing about for $2.71 of value. After comms this could be zero. And then there are edge cases that I haven't covered that could reduce the $2.71 further. (Eg. in the result "if lose scenario" if the odds on the Melbourne cup blow out beyond 135 the E(x) turns negative).

////

And it won, so its the result if win. You'd have to jump ahead of the 17 on offer right now for the MC assuming you are not taking the 34. :shock:


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Masterful analysis, as you'd expect from Gazuty. :)
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lotora
Posts: 645
Joined: Thu Dec 24, 2009 9:20 am
Location: Surin City, Thailand

Anyone else notice that every now and then "take SP" on Australian racing doesn't work?
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Euler
Posts: 24806
Joined: Wed Nov 10, 2010 1:39 pm
Location: Bet Angel HQ

I've not seen this issue but if the amounts are low, sometimes Betfair will not resolve the SP. There is a lower limit at which they will not match at SP.
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