Lost Ark Jump-Up Boost is the main September progression event for a character that is already at item level 1660 or higher and needs help pushing toward 1720. It replaces the idea of one tiny express track with a longer set of Warm-Up milestones, main missions, sub missions and an event shop, so choosing the correct character before you start matters more than simply clicking every event button.
Lost Ark Jump-Up Boost runs from September 16, 2026 until January 20, 2027, but the character selection window closes earlier on December 16. Only one character can be selected per account, with one character change allowed, which makes this an event to plan around your actual roster rather than a reward stream you can freely spread across every alt.
Lost Ark Jump-Up Boost requirements and character selection
Lost Ark Jump-Up Boost accepts any character at item level 1660 or above. Amazon does not list a maximum item level in the event description, unlike Rapid Growth, which is specifically limited to characters from 1660 up to 1700 when selected. That makes Jump-Up Boost the broader of the two September growth systems for characters that have already crossed the 1660 threshold.
The account restriction is the part to read twice: one character is selected, and only one character change is permitted. If you are creating a Dimensionalist for the update, decide whether that character is genuinely becoming your progression target before locking the event in. A casual test character is a poor place to park months of account-limited support.

Lost Ark Jump-Up Boost: warm-Up milestones lead to 1700
Lost Ark Jump-Up Boost begins with a Warm-Up Program built around item-level milestones at 1670, 1680, 1690 and 1700. Each step has a milestone reward, while main missions carry the character along the item-level track. This gives returning players a visible sequence to follow instead of a giant undifferentiated pile of materials.
The event does not stop at 1700. Amazon says additional rewards continue through milestones from 1700 to 1720, so reaching the end of the Warm-Up section is a transition rather than the finish line. That longer range is especially useful for a new main that needs to move beyond the old midgame band and into the content the current patch is built around.
| Rule | Details |
|---|---|
| Minimum item level | 1660 |
| Warm-Up milestones | 1670 / 1680 / 1690 / 1700 |
| Further support | 1700 to 1720 |
| Selected characters | 1 per account |
| Character changes | 1 allowed |
| Event ends | January 20, 2027 |
Lost Ark Jump-Up Boost: how Jump Up Tokens and sub missions work
Lost Ark Jump-Up Boost awards Jump Up Tokens as you progress, and those tokens can be spent in the event shop. Sub missions serve a related purpose by awarding points that can be exchanged for growth materials. In other words, the event has both milestone rewards and a currency layer, so ignoring the side objectives means leaving progression resources on the table.
The safest habit is to check the mission panel before doing your normal daily content. If a sub mission overlaps with an activity you were already going to run, completing it while the event is active turns routine play into extra shop value. That is much better than discovering near the end of the event that you skipped easy points for weeks.
Jump-Up Boost dates and what to prioritise first
Lost Ark Jump-Up Boost stays active until January 20, 2027, giving the selected character several months to finish the progression track. The December 16 selection deadline arrives more than a month earlier, so an account cannot wait until the final week of the event to choose a character and expect the selection option to remain open.
Start by confirming eligibility, comparing the character with your Rapid Growth candidate and then making the selection deliberately. After that, clear the Warm-Up milestones, keep an eye on sub missions and spend Jump Up Tokens rather than letting the event shop become an afterthought. The structure is generous, but most of its value comes from using the whole system instead of treating it as four item-level reward boxes.
More from The Click
Lost Ark Rapid Growth Event Guide: Eligibility and Rewards
Lost Ark Tier 4 Progression: What Changed From Tier 3
South Rimeria II Powerpass: Lost Ark’s New 1660 Powerpass Explained
Lost Ark Dimensionalist Guide: How the New Class Works
Lost Ark Maharaka Returns Event Guide: Minigames, Postcards and Rewards
Lost Ark Dimensions Unbound: Everything New in the September Update
For the live source behind these changes, see the official Dimensions Unbound release notes.
