ABO blood group predictions are brand new, and still under development. We're rolling it out to you so we can see how it performs on real data. All conclusions are still greatly limited by the general lack of phased data, the lack of genotyping at all of the necessary snps, and other factors.

best guess:

ABO blood type

O

rs8176719(D;D)
rs8176746(C;C)

rs8176719 (D;D) indicates you are type-O
you were not genotyped at either rs590787 nor i4001527 so it is impossible to see your Rh blood type

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But the ABO system is quite limited

Blood, you see, doesn't just come in types A, B, AB, and O. The "positive" or "negative?" Nope. In fact, let's get all the way into the weeds: Scientists have since discovered over 300 proteins that contribute to blood type. The AB+ on your blood donor card? Yeah, that's a massive oversimplification... read more at Beyond Blood Type: Genomics Can Show What You're Really Made Of

or

It would be straightforward if we all had the same blood. But we don't. On the surface of every one of our red blood cells, we have up to 342 antigens - molecules capable of triggering the production of specialised proteins called antibodies. It is the presence or absence of particular antigens that determines someone's blood type.

Some 160 of the 342 blood group antigens are 'high-prevalence', which means that they are found on the red blood cells of most people. If you lack an antigen that 99 per cent of people in the world are positive for, then your blood is considered rare. If you lack one that 99.99 per cent of people are positive for, then you have very rare blood.

If a particular high-prevalence antigen is missing from your red blood cells, then you are 'negative' for that blood group. If you receive blood from a 'positive' donor, then your own antibodies may react with the incompatible donor blood cells, triggering a further response from the immune system. These transfusion reactions can be lethal. Read more at The man with the golden blood.

Known ABO SNPs

23andMe ABO

Index	Gene	SNP	Geno	Repute	Magnitude	Summary
1		rs7466519	not tested
2		rs8176750	not tested
3		rs56202119	not tested
4		i4000505	not tested
5		rs56231718	not tested
6		rs55788852	not tested
7		rs55927860	not tested
8		rs8176749	not tested
9		rs56190619	not tested
10		rs55783488	not tested
11		rs56355240	not tested
12		i4000504	not tested
13		rs56409303	not tested
14		rs55805279	not tested
15		rs56106480	not tested
16		rs8176747	not tested
17		rs41302905	not tested
18		rs8176746	(C;C)		0
19		rs8176745	not tested
20		rs55951833	not tested
21		rs8176743	not tested
22		i5007173	not tested
23		rs55739900	not tested
24		rs56116432	not tested
25		rs56031507	not tested
26		rs8176741	not tested
27		rs56408700	not tested
28		rs8176740	(A;T)
29		rs55827808	not tested
30		rs8176739	not tested
31		rs56223957	not tested
32		rs56189011	not tested
33		rs56089890	not tested
34		rs55727303	not tested
35		rs7853989	not tested
36		rs55964869	not tested
37		rs55756402	not tested
38		i5007171	not tested
39		rs1053878	not tested
40		rs55658842	not tested
41		rs7873522	not tested
42		rs8176732	not tested
43		rs2073824	not tested
44		rs8176722	(G;G)
45		rs8176721	not tested
46		rs8176720	not tested
47		rs8176719	(D;D)			likely to be of blood type O
48		rs56231711	not tested
49		rs8176717	not tested
50		rs512770	not tested
51		rs641959	not tested
52		rs514708	not tested
53		rs55958637	not tested
54		rs549446	not tested
55		rs8176704	(C;C)
56		rs574347	not tested
57		rs688976	not tested
58		rs687289	(C;C)
59		rs2073828	not tested
60		rs55876802	not tested
61		rs8176694	not tested
62		rs672316	not tested
63		rs657152	(G;G)	Good	0	common/normal
64		rs8176682	not tested
65		rs474279	not tested
66		rs500498	not tested
67		rs505922	(T;T)	Good	2	blood type O
68		rs507666	(G;G)
69		rs630014	(T;T)

SNPedia ABO

Index	Gene	SNP	Geno	Repute	Magnitude	Summary
1		rs1053878	not tested
2		rs2073824	not tested
3		rs2073828	not tested
4		rs2519093	not tested
5		rs41302905	not tested
6		rs500498	not tested
7		rs505922	(T;T)	Good	2	blood type O
8		rs507666	(G;G)
9		rs512770	not tested
10		rs514659	(A;A)
11		rs55722397	not tested
12		rs55964869	not tested
13		rs56392308	not tested
14		rs574347	not tested
15		rs612169	not tested
16		rs630014	(T;T)
17		rs643434	not tested
18		rs644234	not tested
19		rs657152	(G;G)	Good	0	common/normal
20		rs687289	(C;C)
21		rs687621	not tested
22		rs7853989	not tested
23		rs8176694	not tested
24		rs8176704	(C;C)
25		rs8176719	(D;D)			likely to be of blood type O
26		rs8176720	not tested
27		rs8176722	(G;G)
28		rs8176740	(A;T)
29		rs8176741	not tested
30		rs8176743	not tested
31		rs8176746	(C;C)		0
32		rs8176747	not tested
33		rs8176749	not tested
34		rs8176750	not tested