The UKMT senior maths season runs on a fixed, sequential calendar: the Senior Mathematical Challenge (SMC) opens the year on Wednesday 7 October 2026, the Senior Kangaroo and British Mathematical Olympiad Round 1 (BMO1) both fall on Wednesday 18 November 2026, and BMO2 lands in late January. Each round is a gate to the next. If you are planning a year from outside the UK, you are really planning backwards from these dates.
Why the senior pathway is a single sequence, not separate contests
Many families treat the SMC, Kangaroo and BMO as if a student picks one. They do not. The UKMT senior competitions form one chain in which your score on the earlier round determines whether you are invited to the next. The Senior Mathematical Challenge is the front door; the follow-on rounds are entered “by invitation based on a qualifying Senior Mathematical Challenge score, or by discretionary entry” (per ukmt.org.uk). For a fuller orientation to the olympiad itself, see our What Is the British Mathematical Olympiad explainer.
The practical consequence for an international student is simple: you cannot “skip ahead” to BMO1 on results alone. You enter the SMC first, and the SMC sits a school. So the very first item on your calendar is not a study task — it is confirming that a school will register you. (Whether overseas and home-schooled candidates can be entered, and on what terms, should be confirmed on the official site.)
The dated calendar, round by round
Below are the headline parameters and dates UKMT publishes for the senior competitions. Treat the dates as the published 2026–27 cycle and reconfirm the exact date for whichever academic year you are entering — UKMT moves these by a day or two each year.
| Round | Date (published) | Format | Time | Who can enter |
|---|---|---|---|---|
| Senior Mathematical Challenge | Wed 7 Oct 2026 | 22 multiple-choice + three 000–999 answer questions | 90 minutes | Year 13 and below (S6/Year 14 equivalents) |
| Andrew Jobbings Senior Kangaroo | Wed 18 Nov 2026 | 20 integer-answer questions (000–999) | 60 minutes | By qualifying SMC score, or discretionary entry |
| BMO Round 1 | Wed 18 Nov 2026 | 6 problems, full written proofs | 3.5 hours | ~1000 invited from the SMC, or discretionary entry |
| BMO Round 2 | ~late Jan 2027 (20 Jan 2027 listed) | 4 problems, full written proofs | 3.5 hours | ~100 invited from BMO1, or discretionary entry |
| IMO training session | Around the Easter holidays | Selection camp, Cambridge | — | ~24 high scorers from BMO2 |
Two details deserve emphasis. First, the Senior Kangaroo and BMO1 are scheduled on the same day — they are parallel follow-on routes from the SMC, not consecutive steps, so a student is realistically pointed at one or the other. We unpack that choice separately; for now, note it as a fork in your calendar, not two boxes you tick in series. Second, eligibility is by school year, not age: the senior rounds are open to “Year 13 and below,” which means strong younger students can and do enter early. International students on different grade systems should map their grade to the UK year and confirm equivalence on the official site.
Working backwards: a planning calendar for a China-based student
Because the gates are fixed, the only variable you control is preparation time and registration logistics. Here is how the season looks when you plan backwards from each date. This is an editorial planning template, not an official UKMT schedule.
| When | What to lock in | Why it matters from overseas |
|---|---|---|
| Jun–Aug (before the season) | Confirm a registering school/centre; map your grade to UK Year 13-and-below; build SMC speed | No school = no SMC = the chain never starts. Sort this first. |
| Early–mid Sep | Register and pay through the school’s online entry; finalise the SMC sitting logistics | Auto-qualifiers to follow-ons are free; discretionary entry to a follow-on costs £40 per candidate (per ukmt.org.uk) — budget for it. |
| 7 Oct | Sit the SMC | Your SMC score sets which follow-on you are invited to. |
| Oct–mid Nov | Switch training to the chosen follow-on (Kangaroo speed work, or BMO1 proof-writing) | Only ~6 weeks between the SMC and 18 Nov — the pivot must be fast. |
| 18 Nov | Sit the Senior Kangaroo or BMO1 | BMO1 is a 3.5-hour proof paper; build stamina, not just topic knowledge. |
| Dec–late Jan | If BMO1 qualifies you, train for BMO2's 4 hard problems | ~100 students reach BMO2; the jump in difficulty is steep. |
| ~Easter | (Top ~24 only) Cambridge training session | This is the IMO selection funnel, not a participation prize. |
The single most common planning error we see from overseas families is treating registration as an afterthought. The maths is the long game; the logistics are the short fuse. Because UKMT entries run through schools and centres, an international student without a clear registering body can have a perfect preparation plan and still never sit the SMC. Settle the “who registers me” question in the summer, then let the published dates drive everything else. The detailed eligibility rules for students outside the UK are covered in our BMO eligibility reality check.
Where the senior season connects to the rest of the UKMT ladder
The senior season does not exist in isolation. UKMT runs a full ladder — Junior and Intermediate Challenges, the Kangaroo rounds, and the Junior/Cayley/Hamilton/Maclaurin Olympiads — and a student who starts earlier arrives at the SMC with years of proof practice already banked. A Year 9–11 student aiming at the senior pathway should be feeding through the Intermediate route first; we map that runway in the JMO-to-Cayley plan.
The registration mechanics overseas families underestimate
The dates above are immovable; the part that trips up international families is the entry process behind them. UKMT competitions are administered through schools and centres, which “Register & Purchase entries” through UKMT’s online system. A student does not buy a personal entry the way one might register for an exam directly — a registering body sits the paper on the published date and handles invigilation. For the follow-on rounds, automatic qualifiers (those who clear the relevant SMC score) are entered free, while discretionary entries cost £40 per candidate (per ukmt.org.uk).
For a China-based student, that turns “can I take the BMO?” into three concrete logistics questions, all of which should be answered in the summer rather than discovered in October:
- Who is my registering body? An international school that already runs UKMT challenges is the simplest route. If yours does not, you need to establish whether and how an overseas student can be entered — confirm this on the official site, because terms for non-UK candidates are not something to assume.
- What is my year-group equivalence? Eligibility is “Year 13 and below.” If your school uses a different grade system, map your grade to the UK year before you plan, and confirm borderline cases with the official site.
- When does my centre actually enter me? Centres register and pay in the weeks before each paper. Make sure the person doing it knows you want the SMC and the follow-on, and that the timing matches UKMT’s windows.
None of this is difficult, but all of it has a deadline that arrives before the maths does. The students who lose a season do not usually lose it to a hard problem — they lose it to an entry that was never made.
Three planning mistakes to avoid
Drawn from how overseas students typically approach the senior pathway, these are the avoidable errors that quietly cost results — editorial observations, not official UKMT rules.
| Mistake | What actually happens | The fix |
|---|---|---|
| Training BMO1 proof skills before the SMC | You can be excellent at proofs and still not clear the SMC gate that invites you to BMO1 | Bank the SMC speed work first; the invitation comes from that score |
| Assuming the follow-on rounds are consecutive | Kangaroo and BMO1 share a date, so there is no “do one then the other” | Pick a lane early and train for it through October |
| Leaving registration to the autumn | Centres enter in narrow windows; a late decision can mean no sitting at all | Confirm the registering body and equivalence over the summer |
| Planning only one year | Year 11–12 students arrive at BMO1 with no proof runway | Feed through the intermediate olympiads first (see the Cayley plan) |
Put together, the senior season rewards students who treat it as a logistics problem as much as a maths problem. The dates are fixed and public; the qualification gates are sequential; the registration runs through a centre on a deadline. Lock the boring parts down early, and you free yourself to spend October and November doing the only thing that actually moves your score — solving problems.
Frequently asked questions
Are the Senior Kangaroo and BMO1 really on the same date?
Yes — UKMT lists both on Wednesday 18 November 2026. They are parallel follow-on routes from the SMC, so a student is pointed at one. Confirm the year on the official site.
When does the SMC run in 2026?
UKMT lists the Senior Mathematical Challenge on Wednesday 7 October 2026 (China-region sitting: Thursday 8 October per the organising channel’s handbook, registration by 28 September), with a 90-minute paper of 22 multiple-choice plus three integer-answer questions. Reconfirm on ukmt.org.uk.
Can an international student enter without a UK school?
UKMT entries run through schools and centres. Whether overseas or independent candidates can be entered, and on what terms, must be confirmed on the official site before you plan.
How far does the season go beyond BMO2?
Around 24 high scorers from BMO2 are invited to a training session in Cambridge near Easter, which feeds UK international-olympiad selection. Exact numbers vary by year.
This is an independent editorial guide operated by Hanlin Education for China-based international-school students. It is NOT affiliated with, endorsed by, or sponsored by UKMT or the BMO Subtrust. All competition dates, formats and eligibility rules change year to year — confirm current details on ukmt.org.uk before relying on them. Any error will be corrected within 7 working days of notification.