SP & Betfairs Odds Equivalents

[thunderfoot]

Have spent a week or so downloading English Horse Racing Odds at the 'off' to get the equivalent Betfair odds to typical SP odds. Obviously some anomalies i.e. 2.20 SP, but you can see a pattern forming. Hope it's of use!!

SP Odds	BF BACK Odds	BF LAY Odds	%'age Uplift - BACK	%'age Uplift - LAY	Occ'ns
201	913.33	958.33	454%	477%	6
151	966.00	1000.00	640%	662%	5
126	776.67	873.33	616%	693%	3
101	505.25	633.50	500%	627%	40
81	321.00	421.00	396%	520%	10
67	305.92	404.21	457%	603%	38
51	170.40	209.10	334%	410%	50
41	82.97	93.82	202%	229%	38
34	65.68	73.16	193%	215%	87
29	49.57	54.46	171%	188%	28
26	45.57	49.93	175%	192%	75
23	37.27	40.27	162%	175%	15
21	34.33	37.17	163%	177%	90
19	33.80	37.00	178%	195%	5
17	24.81	26.43	146%	155%	81
15	21.25	22.32	142%	149%	93
13	17.54	18.32	135%	141%	83
12	15.29	15.95	127%	133%	33
11	14.42	15.11	131%	137%	56
10	12.91	13.48	129%	135%	44
9.5	11.66	12.13	123%	128%	8
9	11.08	11.58	123%	129%	85
8.5	9.86	10.26	116%	121%	27
8	9.41	9.73	118%	122%	51
7.5	8.79	9.02	117%	120%	19
7	8.01	8.24	114%	118%	43
6.5	7.33	7.56	113%	116%	34
6	6.91	7.13	115%	119%	30
5.5	6.12	6.29	111%	114%	31
5	5.59	5.72	112%	114%	45
4.5	5.08	5.20	113%	116%	27
4.33	4.89	5.01	113%	116%	14
4	4.51	4.61	113%	115%	22
3.75	3.88	3.95	103%	105%	19
3.5	4.01	4.09	115%	117%	12
3.25	3.52	3.58	108%	110%	13
3	3.26	3.32	109%	111%	17
2.87	3.12	3.16	109%	110%	6
2.75	2.95	2.99	107%	109%	8
2.62	2.79	2.81	106%	107%	8
2.5	2.68	2.70	107%	108%	3
2.37	2.37	2.39	100%	101%	3
2.25	2.43	2.45	108%	109%	4
2.2	2.98	3.00	135%	136%	1
2.1	2.29	2.31	109%	110%	3
2	2.17	2.19	108%	110%	4
1.9	1.95	1.97	103%	104%	4
1.83	1.90	1.91	104%	104%	2
1.72	1.73	1.74	101%	101%	1
1.66	1.74	1.75	105%	106%	3
1.61	1.65	1.66	102%	103%	1
1.57	1.78	1.80	113%	115%	1
1.53	1.69	1.71	110%	112%	1
1.4	1.44	1.45	103%	104%	1
1.36	1.41	1.42	104%	104%	1

[Datapunter]

Re: SP & Betfairs Odds Equivalents Tricky subject, everyone has a different process of deciding when to place a bet, so the actual price depends on the person, live testing is the trick. Still, table looks like a great starting point. In my personal experience when i place bets on horse racing close to the off i manage on average a price that is 10% above SP. (before commission) Seems to fit your table well enough.