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IAL Grade Boundaries October 2023

Edexcel International A Level (IAL) raw-mark grade boundaries for the October 2023 exam series, for every unit in Mathematics, Physics, Chemistry, Biology, Economics, Business and Accounting. The Full UMS column is the raw mark that already gets the unit's maximum UMS, so you don't need full marks to get full UMS.

Mathematics
Physics
Chemistry
Biology
Economics
Business
Accounting

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Mathematics grade boundaries October 2023

Unit	Code	Max	A*	A	B	C	D	E	Full UMS
P1 Pure Mathematics 1AS · 100 UMS	WMA11	75	–	52	45	38	31	25	66
P2 Pure Mathematics 2AS · 100 UMS	WMA12	75	–	55	47	40	33	26	71
P3 Pure Mathematics 3A2 · 100 UMS	WMA13	75	66	59	52	45	38	32	73
P4 Pure Mathematics 4A2 · 100 UMS	WMA14	75	61	54	47	40	33	26	68
M1 Mechanics 1AS · 100 UMS	WME01	75	–	65	57	49	41	33	75
M2 Mechanics 2A2 · 100 UMS	WME02	75	64	57	50	43	37	31	71
S1 Statistics 1AS · 100 UMS	WST01	75	–	62	53	44	35	26	75
S2 Statistics 2A2 · 100 UMS	WST02	75	66	57	48	40	32	24	75

Physics grade boundaries October 2023

Unit	Code	Max	A*	A	B	C	D	E	Full UMS
U1 Mechanics and MaterialsAS · 120 UMS	WPH11	80	–	53	47	42	37	32	65
U2 Waves and ElectricityAS · 120 UMS	WPH12	80	–	55	48	42	36	30	69
U3 Practical Skills in Physics IAS · 60 UMS	WPH13	50	–	33	29	25	21	18	41
U4 Further Mechanics, Fields and ParticlesA2 · 120 UMS	WPH14	90	81	73	65	58	51	44	89
U5 Thermodynamics, Radiation, Oscillations and CosmologyA2 · 120 UMS	WPH15	90	70	66	62	58	54	50	74
U6 Practical Skills in Physics IIA2 · 60 UMS	WPH16	50	39	34	29	24	19	15	44

Chemistry grade boundaries October 2023

Unit	Code	Max	A*	A	B	C	D	E	Full UMS
U1 Structure, Bonding and Introduction to Organic ChemistryAS · 120 UMS	WCH11	80	–	57	50	43	36	29	71
U2 Energetics, Group Chemistry, Halogenoalkanes and AlcoholsAS · 120 UMS	WCH12	80	–	51	45	39	34	29	63
U3 Practical Skills in Chemistry IAS · 60 UMS	WCH13	50	–	36	31	26	21	17	46
U4 Rates, Equilibria and Further Organic ChemistryA2 · 120 UMS	WCH14	90	72	65	58	51	44	38	79
U5 Transition Metals and Organic Nitrogen ChemistryA2 · 120 UMS	WCH15	90	69	62	55	48	41	35	76
U6 Practical Skills in Chemistry IIA2 · 60 UMS	WCH16	50	36	32	28	24	20	17	40

Biology grade boundaries October 2023

Unit	Code	Max	A*	A	B	C	D	E	Full UMS
U1 Molecules, Diet, Transport and HealthAS · 120 UMS	WBI11	80	–	47	41	35	30	25	59
U2 Cells, Development, Biodiversity and ConservationAS · 120 UMS	WBI12	80	–	54	49	45	41	37	64
U3 Practical Skills in Biology IAS · 60 UMS	WBI13	50	–	37	32	27	23	19	47
U4 Energy, Environment, Microbiology and ImmunityA2 · 120 UMS	WBI14	90	47	45	43	41	39	37	49
U5 Respiration, Internal Environment, Coordination and Gene TechnologyA2 · 120 UMS	WBI15	90	59	55	51	47	43	39	63
U6 Practical Skills in Biology IIA2 · 60 UMS	WBI16	50	46	43	38	33	28	23	50

Economics grade boundaries October 2023

Unit	Code	Max	A*	A	B	C	D	E	Full UMS
U1 Markets in ActionAS · 100 UMS	WEC11	80	–	54	47	41	35	29	68
U2 Macroeconomic Performance and PolicyAS · 100 UMS	WEC12	80	–	53	47	41	36	31	65
U3 Business BehaviourA2 · 100 UMS	WEC13	80	55	50	44	39	34	29	60
U4 Developments in the Global EconomyA2 · 100 UMS	WEC14	80	56	50	44	38	32	27	62

Business grade boundaries October 2023

Unit	Code	Max	A*	A	B	C	D	E	Full UMS
U1 Marketing and PeopleAS · 100 UMS	WBS11	80	–	60	54	48	43	38	72
U2 Managing Business ActivitiesAS · 100 UMS	WBS12	80	–	45	39	34	29	24	57
U3 Business Decisions and StrategyA2 · 100 UMS	WBS13	80	48	43	38	34	30	26	53
U4 Global BusinessA2 · 100 UMS	WBS14	80	56	49	42	36	30	24	63

Accounting grade boundaries October 2023

Unit	Code	Max	A*	A	B	C	D	E	Full UMS
U1 The Accounting System and CostingAS · 300 UMS	WAC11	200	–	117	98	79	60	41	155
U2 Corporate and Management AccountingA2 · 300 UMS	WAC12	200	168	149	130	111	93	75	187

All numbers are raw marks. AS units have A to E; A2 units also have A*. Source: Pearson's October 2023 IAL grade boundaries (PDF). For how UMS is worked out, see the FAQ.

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