Mastery

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Mastery

Mastery is a secondary system of levels tied to individual items within a skill. Each item in a non-combat skill (with the exception of Alt. Magic spells) has a level associated with it.

The bonuses unlocked by leveling Mastery depend on the specific skill the Mastery is associated with. To see a full list of bonuses for a given skill, check the in-game Mastery guide page for that skill or visit the wiki page for that skill.

Earning Mastery XP

Each time a player completes an action with an associated Mastery Level, they will receive Mastery XP for that item. The XP per action calculation is:

[math]\displaystyle{ \Biggl \lfloor \biggl[ \Bigl( \text{Unlocked Milestones} \times \frac{\text{Player Total Mastery for Skill}}{\text{Total Mastery for Skill}} \Bigr) + \Bigl( \text{Item Mastery Level} \times \frac{\text{Total Items in Skill}}{10} \Bigr) \biggr] \times \text{Seconds Per Action} \times 0.5 \times \left ( 1 + \text{Bonus} \right ) \Biggr \rfloor }[/math]

Where:

  • Unlocked Milestones is the number of milestones the player has unlocked for the relevant skill. These can be seen in game with a level number highlighted in green when viewing milestones from the skilling minibar or skills section of the completion log. This number includes "Skill Mastery" if the player is skill level 99
  • Player Total Mastery for Skill and Total Mastery for Skill are both numbers shown on each skill tile within the mastery section of the completion log
  • Item Mastery Level is the mastery level of the item/action currently being crafted/performed
  • Total Items in Skill is the number of items/actions within the relevant skill, and can also be expressed as [math]\displaystyle{ \tfrac{\text{Total Mastery for Skill}}{99} }[/math]
  • Seconds per Action for gathering skills (such as Woodcutting) is the number of seconds taken to complete the action. For other skills, please see below
  • Bonus is the percentage increase to experience gained. All available bonuses are detailed within the Bonuses section below

For the following skills, Seconds per Action is replaced with the following values, being near or equal to the lowest possible seconds per action after applying all available interval reduction bonuses:

Skill Seconds per Action
Firemaking 60% of the log's base burn interval
Cooking 85% of the recipe's base cooking interval
Smithing 1.7
Fletching 1.3
Crafting 1.65
Runecrafting 1.7
Herblore 1.7
Summoning 4.85

In other words, there are two main factors that are added together to determine the XP per action:

  • The first is based on how many total Mastery levels the player has in the skill. Each item in a skill adds up to +1 to this factor depending on its current Mastery level.
  • The second is based on the Mastery level of the specific item gaining XP multiplied by one tenth of the total number of items in the skill.

After both of these factors are added together, they are multiplied by half of the time per action as measured in seconds.

There are two important takeaways from this:

  1. Mastery XP per action increases substantially as Mastery level in an item increases.
  2. Mastery XP is gained much more quickly for skills with a lot of items (such as Smithing) than it is for skills with only a few (such as Woodcutting).

Bonuses

Aside from increasing the factors mentioned in the formula above, there are several ways to increase the Mastery XP gained:

Name Description
Ancient Ring of Mastery The Ancient Ring of Mastery is a rare drop that can be found while Fishing. It increases Mastery XP gained by 7%.
Firemaking Each Firemaking item at level 99 Mastery grants +0.25% Mastery XP to other skills. In addition, reaching the 95% Mastery Pool Checkpoint for Firemaking increases global Mastery XP by +5%.
Ty Once acquired, the Mastery pet provides a +3% Mastery XP bonus.
Mastery Pool Checkpoints The 10% Mastery Pool checkpoint for each skill is a +5% bonus to Mastery XP gained for that skill.
Agility Obstacles Several Agility Obstacles provide bonuses to Mastery XP for one or more skills. However, others will reduce the amount of Mastery XP earned, so players focused on levelling Mastery should make sure their Agility course isn't slowing them down.
Astrology Modifiers Astrology can give you a buff of 1-5% Mastery XP for a skill, with the potential to have 3 mastery modifiers on one skill. This makes the maximum potential +15% Mastery XP for a skill, although the chance is extremely low for a single +5%

The Mastery Pool

Whenever the player gains Mastery XP, 25% of the amount received is also added to the Mastery Pool for that skill. After Skill level 99, this is increased to 50% of the item Mastery XP. The maximum Mastery Pool XP for a given skill is equal to 500,000 multiplied by the total number of items in that skill.

Mastery XP Pool has two uses:

First, it can be spent to level up any item mastery for a skill. Mastery Pool XP spent this way is converted to item mastery XP at a 1:1 rate.

Second, Checkpoints are reached when the Mastery Pool reaches 10%, 25%, 50%, and 95% filled. These bonuses vary by skill, but are often quite powerful. Checkpoints only remain active as long as the Mastery Pool has enough XP in it to meet the requirement - If enough Mastery Pool XP is spent on levelling items to dip below the threshold for a given checkpoint, the bonus will be lost until enough XP is gained to reach it again.

Mastery tokens can be claimed from either the bank or the spend mastery XP interface, doing so fills the Mastery Pool for the relevant skill by 0.1% of the maximum pool XP.

Mastery Level XP

Mastery Experience follows the same XP progression as skills do.

The experience difference between level [math]\displaystyle{ L-1 }[/math] and level [math]\displaystyle{ L }[/math] is approximately [math]\displaystyle{ \left\lfloor \frac{1}{4} \left( L-1+300\times 2^{\frac{L-1}{7}} \right) \right\rfloor }[/math]. The table below shows this experience difference for each level and also the cumulative experience from level 1 to level [math]\displaystyle{ L }[/math]. Note that experience levels are nonlinear and so the amount of experience between 1 and 92 is the same as the amount of experience between 92 and 99. Experience also doubles about every 7 levels. For example, the experience between 7 and 8 is 138 and the experience between 14 and 15 is 274, which is roughly double.

The base game has a maximum skill and Mastery level of 99, with the Throne of the Herald Expansion the skill level maximum is increased to 120.

Level XP Difference Level XP Difference Level XP Difference Level XP Difference Level XP Difference
1 0 0 26 8,740 898 51 111,945 10,612 76 1,336,443 126,022 101 15,889,109 1,497,949
2 83 83 27 9,730 990 52 123,660 11,715 77 1,475,581 139,138 102 17,542,976 1,653,867
3 174 91 28 10,824 1,094 53 136,594 12,934 78 1,629,200 153,619 103 19,368,992 1,826,016
4 276 102 29 12,031 1,207 54 150,872 14,278 79 1,798,808 169,608 104 21,385,073 2,016,081
5 388 112 30 13,363 1,332 55 166,636 15,764 80 1,986,068 187,260 105 23,611,006 2,225,933
6 512 124 31 14,833 1,470 56 184,040 17,404 81 2,192,818 206,750 106 26,068,632 2,457,626
7 650 138 32 16,456 1,623 57 203,254 19,214 82 2,421,087 228,269 107 28,782,069 2,713,437
8 801 151 33 18,247 1,791 58 224,466 21,212 83 2,673,114 252,027 108 31,777,943 2,995,874
9 969 168 34 20,224 1,977 59 247,886 23,420 84 2,951,373 278,259 109 35,085,654 3,307,711
10 1,154 185 35 22,406 2,182 60 273,742 25,856 85 3,258,594 307,221 110 38,737,661 3,652,007
11 1,358 204 36 24,815 2,409 61 302,288 28,546 86 3,597,792 339,198 111 42,769,801 4,032,140
12 1,584 226 37 27,473 2,658 62 333,804 31,516 87 3,972,294 374,502 112 47,221,641 4,451,840
13 1,833 249 38 30,408 2,935 63 368,599 34,795 88 4,385,776 413,482 113 52,136,869 4,915,228
14 2,107 274 39 33,648 3,240 64 407,015 38,416 89 4,842,295 456,519 114 57,563,718 5,426,849
15 2,411 304 40 37,224 3,576 65 449,428 42,413 90 5,346,332 504,037 115 63,555,443 5,991,725
16 2,746 335 41 41,171 3,947 66 496,254 46,826 91 5,902,831 556,499 116 70,170,840 6,615,397
17 3,115 369 42 45,529 4,358 67 547,953 51,699 92 6,517,253 614,422 117 77,474,828 7,303,988
18 3,523 408 43 50,339 4,810 68 605,032 57,079 93 7,195,629 678,376 118 85,539,082 8,064,254
19 3,973 450 44 55,649 5,310 69 668,051 63,019 94 7,944,614 748,985 119 94,442,737 8,903,655
20 4,470 497 45 61,512 5,863 70 737,627 69,576 95 8,771,558 826,944 120 104,273,167 9,830,430
21 5,018 548 46 67,983 6,471 71 814,445 76,818 96 9,684,577 913,019
22 5,624 606 47 75,127 7,144 72 899,257 84,812 97 10,692,629 1,008,052
23 6,291 667 48 83,014 7,887 73 992,895 93,638 98 11,805,606 1,112,977
24 7,028 737 49 91,721 8,707 74 1,096,278 103,383 99 13,034,431 1,228,825
25 7,842 814 50 101,333 9,612 75 1,210,421 114,143 100 14,391,160 1,356,729