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IB 45 Points: How Many Students Get a Perfect Score

Latest data: May 2026Provisional

The last bulletins to give the number of students scoring a perfect 45 were for May 2022, when 772 did (0.87% of Diploma results), and November 2022, when 152 did (1.10%). Bulletins since May 2023 give only the share scoring 40 to 45 points: 10.1% in May 2026, up from 9.8% in May 2025.

Scored 45
772
May 2022: 0.87% of results
Scored 45
152
November 2022: 1.10% of results
Scored 40 to 45
10.1%
May 2026
Scored 40 to 45
10.9%
November 2025

Students scoring 45 points

How many Diploma students scored a perfect 45 in each session from November 2017 to November 2022, and their share of Diploma results. The bulletins after November 2022 don't give this number.

Students scoring 45 points in the IB Diploma by year, May and November sessions.
IB Diploma students scoring 45 points by session, newest first
SessionStudentsShare of resultsSource
November 20221521.10%November 2022 bulletin
May 20227720.87%May 2022 bulletin
November 20212922.25%November 2021 bulletin
May 20211,3511.53%May 2022 bulletin
November 20201260.83%November 2022 bulletin
May 20203410.39%May 2022 bulletin
November 2019900.59%November 2022 bulletin
May 20192750.32%May 2022 bulletin
November 2018950.63%November 2022 bulletin
May 20182590.31%May 2022 bulletin
November 2017910.69%November 2021 bulletin

Source: the bulletin each figure is printed in. A later bulletin is named where it reprints an earlier session.

  • The IB states that these results combine examination and non-examination assessment routes, which were used during the COVID-19 disruption. (May 2022)

Students scoring 40 to 45 points

The share of Diploma results with 40 to 45 points in each session from May 2019 to May 2026, the figure the bulletins give in place of the number scoring 45.

Share of IB Diploma results with 40 to 45 points by year, May and November sessions.
Share of IB Diploma results with 40 to 45 points by session, newest first
SessionShare of resultsSource
May 202610.1%May 2026 bulletin
November 202510.9%November 2025 bulletin
May 20259.8%May 2025 bulletin
November 202410.6%November 2024 bulletin
May 20249.3%May 2024 bulletin
November 202310.2%November 2023 bulletin
May 20238.87%May 2023 bulletin
November 202215.5%November 2025 bulletin
May 202214.7%May 2026 bulletin
November 202119.8%November 2025 bulletin
May 202118.4%May 2025 bulletin
November 202011.8%November 2024 bulletin
May 202011.0%May 2024 bulletin
November 20199.7%November 2023 bulletin
May 20197.61%May 2023 bulletin

Source: the bulletin each figure is printed in. A later bulletin is named where it reprints an earlier session.

May 2026 figures are provisional.

  • The IB states that these results combine examination and non-examination assessment routes, which were used during the COVID-19 disruption. (May 2022)

Source and methodology

These statistics are from the International Baccalaureate's statistical bulletins. The latest data shown is from the May 2026 assessment session.

About this data

  • May and November are separate assessment sessions. November is much smaller and mostly taken by schools in the southern hemisphere, so its figures aren't directly comparable with May's.
  • The May 2026 figures are from the IB's provisional bulletin and may change when the final bulletin is published.
  • Older bulletins call the people sitting the exams “candidates” and newer ones “students”. This site says “students” throughout.
  • Bulletins up to May 2023 print figures to two decimal places and later ones to one. Each figure is shown as printed, and changes are compared at the lower precision.
  • Each figure is from the session's own bulletin where it gives one, and otherwise from the most recent bulletin that reprints the session in its tables of earlier years, the only source for sessions before November 2021. Each table names the bulletin every figure is from.
  • Bulletins that print 40 to 44 and 45 as separate bands don't give 40 to 45 as one, so those sessions' 40 to 45 shares are from later bulletins. They are never calculated by adding the two bands.

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