Eyes on a preference list, most candidates assume the risk only shows up if they never get placed at all. It doesn't. Placed and simply never showing up to register is the version that costs you — the following year, the Ortaöğretim Başarı Puanı, or OBP, that ÖSYM (Turkey's Assessment, Selection and Placement Center) folds into your YKS score is worth half of what it used to be. It's a rule that resurfaces every preference season, and it trips up more candidates than almost any other line in the ÖSYM guidebook, largely because two very different situations — not getting placed, and getting placed but skipping registration — get lumped together in most people's heads. They aren't the same thing, and the difference decides whether your score survives intact.
Table of contents
- What OBP Is and How ÖSYM Calculates It
- Not Getting Placed Is Not the Same as Getting Placed and Skipping Registration
- How the Coefficient Actually Drops If You Don't Register
- Freezing Enrollment, Transferring Programs, and Open Education
- How Many Candidates Skipped Registration in 2025?
- How to Protect Your Score If You're Unsure
- Frequently Asked Questions
What OBP Is and How ÖSYM Calculates It
OBP is the portion of your YKS placement score built from your high school diploma grade rather than from anything you answer on exam day. ÖSYM takes your diploma grade out of 100, multiplies it by five, and lands on a figure somewhere between 250 and 500. A candidate whose diploma grade never gets reported, or who scores below 50, is treated as having a 50 — which fixes the OBP floor at 250 regardless of the actual transcript. That converted figure is then multiplied by a standard coefficient of 0.12 before it's added to your placement score.
Run the numbers on an 85 average: 85 × 5 gives an OBP of 425, and at the standard 0.12 coefficient that adds roughly 51 points to the final placement score. Drop the coefficient to 0.06 and the same 425 contributes only about 25.5 points — a 25-point gap that, in a system where rankings are decided in the hundreds, can move a candidate thousands of places down the list. The coefficient, not the diploma grade itself, is what the penalty in this article actually touches.
Not Getting Placed Is Not the Same as Getting Placed and Skipping Registration
ÖSYM draws a hard line between two outcomes that candidates routinely confuse. Build a full preference list and come up with no placement at all, and your OBP coefficient is untouched — it sits at 0.12 again the next time you sit the exam. The logic holds up: you never occupied a quota seat, so there's nothing to claw back.
Everything changes the moment central placement puts your name against a program. What matters to ÖSYM is what the placement results document says, not whether you subsequently walked into a registrar's office. If your result shows a placement, the coefficient penalty applies on your next exam attempt regardless of whether you ever paid a fee or picked up a student ID.
How the Coefficient Actually Drops If You Don't Register
Get placed and never register, and the coefficient applied to your OBP the following YKS falls from 0.12 to 0.06. The diploma grade and the converted OBP figure themselves don't change; what shrinks is how much of that figure gets added to your placement score. The cut applies to exactly one exam cycle — the first one after the year you were placed. Sit that exam, avoid being placed again, and the coefficient reverts to 0.12 for every cycle after.
It doesn't stack. A candidate who gets placed and skips registration in three consecutive years isn't grinding down toward 0.03 or 0.015 — the floor stays at 0.06 each time, evaluated year by year rather than accumulated. The same rule applies whether the placement came through the standard YKS route or through a special talent exam, and it applies equally to quota-based open education placements.
Freezing Enrollment, Transferring Programs, and Open Education
Three specific situations account for most of the confusion candidates run into.
Freezing your registration is not an escape hatch. Register, then freeze the same semester, and the penalty still applies — the placement already happened as far as ÖSYM's records are concerned, and the timing of the freeze doesn't change that.
A horizontal transfer doesn't help either. Switching programs updates where you study; it does nothing to the "placed" status already sitting in ÖSYM's system, so a coefficient cut that has already been triggered survives the transfer untouched.
Open education splits into two categories that behave differently. Quota-limited open education programs filled through central placement carry the same OBP penalty as any other program. Programs with no quota ceiling — exam-free open education faculty enrollment, including registrations made under second-university rights — sit outside the rule entirely, because no YKS placement score determines admission to them in the first place.
How Many Candidates Skipped Registration in 2025?
The scale of this issue is bigger than most candidates assume, and there's an official figure to prove it. Türkiye's Council of Higher Education (YÖK) reported that 2,310,599 of the 2,560,649 candidates who sat the 2025 YKS had a placement score calculated, and 1,412,734 of them submitted a preference list against roughly 840,000 available quota seats. Of those, 785,186 candidates earned a placement across full-time, open education and distance-learning programs combined, with 665,054 of them placed into formal associate or bachelor's degree quotas.
Against that backdrop, YÖK separately confirmed that 112,255 candidates who earned a placement in 2025 did not go on to register. The figure came out as a correction after several outlets circulated a much larger — and incorrect — number drawn from a different reporting period. Housing costs and tuition at foundation universities are the reasons cited most often for state-university candidates walking away from a seat, alongside plain reluctance to relocate. Most of that group will sit the next YKS with a 0.06 coefficient, and few of them realize it until well after the preference window has closed.
How to Protect Your Score If You're Unsure
Registering, even into a program you don't actually want, is the single most reliable way to keep your OBP intact — not the only way, but the practical one. Once you're registered, a horizontal transfer or a supplementary placement the following year both stay open to you. Skip registration altogether, and you give up that flexibility along with an unbroken coefficient in the same move.
A workable approach for candidates on the fence: place a low-demand, backup-style choice near the bottom of your preference list rather than leaving it off. If it comes through, register, and keep preparing in parallel. If the outcome still isn't what you wanted, freezing your enrollment later costs you nothing extra — the coefficient will already be locked in for that cycle either way — while keeping your registration alive at that institution.
The moment central placement assigns you to a program, ÖSYM counts you as placed whether or not you ever visit the registrar's window; the coefficient follows that record, not your actions afterward. Weigh that fact before you decide whether an unwanted seat is worth walking away from, and confirm the current version of this rule against ÖSYM's own guidebook before the preference period opens each year.
Frequently Asked Questions
If I only rank programs but never get placed anywhere, does my OBP drop?
No. ÖSYM applies the penalty only to candidates actually placed into a program through central placement. A preference list that produces no placement leaves your coefficient at 0.12 for the next exam.
If I register and then freeze my enrollment, does the coefficient still drop?
Yes. The penalty is tied to the placement, not to what happens with the registration afterward, so freezing your enrollment does not undo a coefficient cut already triggered by the placement.
How many years does the lower coefficient last?
Just one exam cycle — the first YKS after the year you were placed. If you don't get placed again that year, the coefficient returns to 0.12 from then on.
Does placement into an open education program break my OBP?
Only if it's a quota-limited program filled through central placement. Exam-free, unlimited open education faculty programs are exempt because they don't use a YKS placement score.
Does transferring to a different program restore my original coefficient?
No. A horizontal transfer changes your program, not the placement record ÖSYM already holds, so any coefficient penalty tied to that placement stays in effect.