ComboBuilder Market Coverage

How to build ComboBuilder selections, plus every supported market and its outcome tokens

ComboBuilder is available for Football, Basketball, and Baseball across all leagues.

Each leg of a combo is one selection: it names the market you are betting, the outcome you are backing, and, where the market needs them, a line or a player. The tables further down list every supported market with its Market ID, accepted outcome tokens, and whether a line is required. Read this section first to turn a market from those tables into a valid selection.

Working with Outcomes

The selection object

Each entry in the request's selections array describes one leg:

Field	Required	What to send
marketId	Always	The Market ID from the tables below
outcome	Always	The side or result you are backing; accepted tokens per market are listed below
line	When the market's Line column says Yes	The handicap or total the outcome refers to, e.g. 2.5 for Over/Under
playerId	For player markets	The player the leg refers to; must match a player in the fixture's participants
period	Optional	A period override. Usually omit it: full-game markets and period markets (e.g. 1st Period Winner) already resolve their own period

Outcome tokens are case-insensitive: Y, y, and yes are all accepted. metricType is an optional refinement for certain player props; you can leave it out.

How to read the outcome tokens

Most markets use a small set of conventions:

Token	Meaning
1 / X / 2	Home / Draw / Away
O / U	Over / Under (always sent with a line)
ODD / EVEN	Odd or even total
Y / N	Yes or no
<home>-<away>	A correct-score line, e.g. 2-1
a/b	A combined token, e.g. 1/Y (home win and both teams to score)

Some markets accept a descriptive value in place of a symbol. For example, No Goal is accepted alongside X on First Team To Score. The exact set for each market is in the tables, so check the row you are sending.

Combo markets (e.g. 1X2 And Under/Over) use a single composite token with the line built into the string, such as 1/O2.5. For these the separate line field is ignored: the Outcomes column shows the format and Notes shows an example.

Building a valid slip

A few rules govern every request:

• A slip needs at least two selections.
• Send an outcome token that is valid for that market. An unrecognised market or token is rejected, and the API reference lists every error response.
• On the standard /v1/combobuilder endpoint you also supply the source odds each leg depends on. Use /v1/markets to find those dependencies, or /v1/combobuilder/auto to have them resolved for you. See the ComboBuilder overview for the full flow.

Examples

A straight two-leg combo, Home win plus Over 2.5 goals:

A player leg. Anytime Goalscorer needs a playerId, and that player must also appear under the fixture's participants:

Football

Market ID	Market Name	Outcomes	Line	Notes
1	1X2	1 X 2	No
2	Under/Over	O U	Yes
3	Asian Handicap	1 2	Yes
4	HT/FT	1/1 1/X 1/2 X/1 X/X X/2 2/1 2/X 2/2	No
5	Odd/Even	ODD EVEN	No
6	Correct Score	<home>-<away>	No	e.g. 2-1
7	Double Chance	1X 12 X2	No
9	Correct Score 1st Period	<home>-<away>	No	e.g. 2-1
11	Total Corners	O U	Yes
13	European Handicap	1 X 2	Yes
16	First Team To Score	1 2 X	No	X = No Goal
17	Both Teams To Score	Y N	No
21	Under/Over 1st Period	O U	Yes
22	Away Team to Score	Y N	No
23	Home Team to Score	Y N	No
25	Double Chance Halftime	1X 12 X2	No
30	Under/Over Corners - Home Team	O U	Yes
31	Under/Over Corners - Away Team	O U	Yes
34	Home Team To Score In Both Halves	Y	No	Proposition fixed by market ID
35	Away Team To Score In Both Halves	Y	No	Proposition fixed by market ID
41	1st Period Winner	1 X 2	No
42	2nd Period Winner	1 X 2	No
45	Under/Over 2nd Period	O U	Yes
52	12	1 2	No
55	First Team To Score 1st Period	1 2 X	No	X = No Goal
56	Last Team To Score	1 2 X	No	X = No Goal
59	Next Goal	1 2 X	Yes	line = goal number; X = none
61	European Handicap Halftime	1 X 2	Yes
64	Asian Handicap 1st Period	1 2	Yes
69	Will The Game Go To Overtime?	Y N	No
71	Highest Scoring Half	1 2 X	No	X = equal halves
72	1st Period Odd/Even	ODD EVEN	No
73	2nd Period Odd/Even	ODD EVEN	No
79	Will A Penalty Be Awarded?	Y N	No
80	First Corner	1 2 X	No	X = none
81	Last Corner	1 2 X	No	X = none
82	Will A Red Card Be Shown?	Y N	No
84	To Win Both Halves	1 2	No
85	To Win From Behind	1 2	No
86	To Win To Nil	1 2	No
92	First Team To Score 2nd Half	1 2 X	No	X = No Goal
97	Home Team Win To Nil	Y N	No
98	Home Team To Keep A Clean Sheet	Y N	No
100	Correct Score 2nd Period	<home>-<away>	No	e.g. 2-1
101	Under/Over - Home Team	O U	Yes
102	Under/Over - Away Team	O U	Yes
104	Away Team To Win Both Halves	Y	No	Proposition fixed by market ID
105	Home Team To Win Both Halves	Y	No	Proposition fixed by market ID
106	Home Team To Win From Behind	Y	No	Proposition fixed by market ID
110	Away Team To Win At Least One Half	Y	No	Proposition fixed by market ID
111	Home Team To Win At Least One Half	Y	No	Proposition fixed by market ID
113	Both Teams To Score 1st Half	Y N	No
114	Any Player To Score At Least 2 Goals	Y	No
128	Number of Goals	0 1 2 3 4 5 Or More No Goal	No	0 also accepted as No Goal
129	Under/Over Corners - 1st Half	O U	Yes
134	Number of Goals 1st Half	0 1 2 3 4 5 Or More No Goal	No	0 also accepted as No Goal
137	Home Win No Bet	1 2	No
147	Away Team Number Of Goals In 2nd Half	O U	Yes
148	Home Team Number Of Goals In 2nd Half	O U	Yes
151	Double Chance 2nd Half	1X 12 X2	No
153	Under/Over 1st Period - Home Team	O U	Yes
154	Under/Over 2nd Period - Home Team	O U	Yes
155	Under/Over 1st Period - Away Team	O U	Yes
156	Under/Over 2nd Period - Away Team	O U	Yes
163	Number of Goals 2nd Half	0 1 2 3 4 5 Or More No Goal	No	0 also accepted as No Goal
169	To Score In Both Halves	Y N	No
171	To Win Either Half	1 2	No
191	Will Any Player Score a Hat-Trick?	Y N	No
192	Will A Goal Be Scored In Both Halves?	Y N	No
198	Odd/Even - Home Team	ODD EVEN	No
199	Odd/Even - Away Team	ODD EVEN	No
202	1st Period Winner Home/Away	1 2	No
203	2nd Period Winner Home/Away	1 2	No
210	Total Corners - 2nd Half	O U	Yes
211	Both Teams To Score 2nd Half	Y N	No
212	Both Teams To Score In Both Halves	Y N	No
214	Under/Over Cards	O U	Yes
215	Away Team to Score 1st Half	Y	No	Proposition fixed by market ID
216	Away Team to Score 2nd Half	Y	No	Proposition fixed by market ID
218	Home Team to Score 1st Half	Y	No	Proposition fixed by market ID
219	Home Team to Score 2nd Half	Y	No	Proposition fixed by market ID
259	Team With Most Corners	1 X 2	No
305	Corners - Under/Exactly/Over	O U Exactly	Yes
338	Next Goal 1st Period	1 2 X	Yes	line = goal number; X = none
391	Next Goal - Extra Time	1 2 X	Yes	line = goal number; X = none
401	Under/Over Corners 1st Half - Home Team	O U	Yes
402	Under/Over Corners 1st Half - Away Team	O U	Yes
409	1X2 Corners	1 X 2	No
410	1X2 Corners 1st Half	1 X 2	No
415	1X2 And Both Teams To Score	<1|X|2>/<Y|N>	No	e.g. 1/Y
416	Under/Over - Extra Time	O U	Yes
417	Under/Over - Extra Time 1st Half	O U	Yes
419	1X2 - Extra Time	1 X 2	No
427	1X2 And Under/Over	<1|X|2>/<O|U><line>	No	e.g. 1/O2.5
433	European Handicap Corners	1 X 2	Yes
472	Will Game Go to Shootout?	Y N	No
523	Under/Over And Both Teams To Score	<O|U><line>/<Y|N>	No	e.g. U2.5/N
579	Next Corner	1 2 X	No	X = none
711	Player To Score In Anytime	Y	No	Player ID required
714	Player To Score 2 Or More Goals	Y	No	Player ID required
715	Player To Score 3 Or More Goals	Y	No	Player ID required
756	Under/Over - Extra Time Corners	O U	Yes
820	Race To Corners	1 2 X	Yes	X = none
941	Next Player To Score	Y	No	Player ID required
1063	Highest Scoring Half - Away Team	1 2 X	No	X = equal halves
1071	Under/Over Player Assists	O U	Yes	Player ID required
1249	Double Chance & Under/Over	<1X|X2|12>/<O|U><line>	No	e.g. 1X/O2.5
1250	Double Chance & Both Teams To Score	<1X|X2|12>/<Y|N>	No	e.g. 1X/Y
1397	Under/Over Player Shots	O U	Yes	Player ID required
2351	Under/Over Player Shots On Target	O U	Yes	Player ID required
2352	Under/Over Player Tackles	O U	Yes	Player ID required
2578	1st Period 1X2 And Both Teams To Score	<1|X|2>/<Y|N>	No	e.g. 1/Y
2734	Under/Over Player Passes	O U	Yes	Player ID required
3201	Player Over Shots	O	Yes	Player ID required; over only

Basketball

Market ID	Market Name	Outcomes	Line	Notes
1	1X2	1 2	No
2	Under/Over	O U	Yes
3	Asian Handicap	1 2	Yes
4	HT/FT	1/1 1/X 1/2 X/1 X/X X/2 2/1 2/X 2/2	No
5	Odd/Even	ODD EVEN	No
7	Double Chance	1X 12 X2	No
41	1st Period Winner	1 2	No
42	2nd Period Winner	1 2	No
43	3rd Period Winner	1 2	No
44	4th Period Winner	1 2	No
63	12 Halftime	1 2	No
69	Will The Game Go To Overtime?	Y N	No
72	1st Period Odd/Even	ODD EVEN	No
73	2nd Period Odd/Even	ODD EVEN	No
74	3rd Period Odd/Even	ODD EVEN	No
75	4th Period Odd/Even	ODD EVEN	No
84	To Win Both Halves	Y N	No
101	Under/Over - Home Team