DOT Difficulty System

Yosemite Decimal System

The Yosemite Decimal System was originally developed in the 30’s by members of the Sierra Club to more accurately classify hikes and climbs. Technical climbing starts at 5.0 on the scale, with each point adding to the difficulty. Sub-grades starting at 5.10 further break down harder ratings with the letters “a” through “d”. The scale currently extends to 5.15d.

French Numerical Scale

The French Numerical Scale begins at 1 and uses the letters “a” through “c” to break down each number. This is the most common method used to rate sport climbs in Europe and in international competitions.

Paraclimbing Categories

The Front sets some of their routes specifically for the adaptive climbing community, so you may see some of these official paraclimbing labels at the beginning of a route alongside our rating system dots. Anyone can climb these routes, and knowing their categories may change how you approach them.

RP // range, power

• RP1/RP2/RP3: a reduction in power, dexterity, or mobility through any number of limbs or parts of the body

AL // amputee lower

• AL1: the “seated category,” athletes are unable to use their legs to climb
• AL2: lower leg amputation either below the knee (bk) or above the knee (ak); prosthetic is optional

AU // amputee upper

• AU1: upper limb difference in the form of a shoulder amputation
• AU2: upper limb difference below the elbow
• AU3: upper limb difference below the wrist

B // blind or visually impaired

• B1: completely blind
• B2/B3: limited visual acuity or visual field

V-Scale

The V-Scale was developed in the 1990’s by John “Vermin” Sherman, a pioneering climber and boulderer notable for his part in developing the Hueco Tanks bouldering area in Texas.

The V-Scale is open ended but currently ranges from V0 to V17. The scale is most popular in North America and only factors the physical difficulty of a problem into a rating.

Paraclimbing Categories

The Front sets some of their routes specifically for the adaptive climbing community, so you may see some of these official paraclimbing labels at the beginning of a route alongside our rating system dots. Anyone can climb these routes, and knowing their categories may change how you approach them.

RP // range, power

• RP1/RP2/RP3: a reduction in power, dexterity, or mobility through any number of limbs or parts of the body

AL // amputee lower

• AL1: the “seated category,” athletes are unable to use their legs to climb
• AL2: lower leg amputation either below the knee (bk) or above the knee (ak); prosthetic is optional

AU // amputee upper

• AU1: upper limb difference in the form of a shoulder amputation
• AU2: upper limb difference below the elbow
• AU3: upper limb difference below the wrist

B // blind or visually impaired

• B1: completely blind
• B2/B3: limited visual acuity or visual field

Yellow Dot — Novice/Beginner

Designed for those new to the subject, building their foundation from the ground up. Core concepts, vocabulary, and structure are introduced. No prior experience required.

Blue Dot — Intermediate

Assumes working familiarity with the basics. Class time builds and expands on what you already know rather than introducing it for the first time.

Green Dot — Experienced

For students with a consistent, practiced foundation. Instruction focuses on depth, refinement, and progression — no foundational coaching required.

Red Dot — Expert

For highly experienced students operating at or near the top of the subject. Sessions are designed for those ready to push limits at a performance or competition level.

Black Dot — Pro

Reserved for elite-level programming — intensives, advanced clinics, and specialized sessions at the highest tier. Not suitable for general enrollment.

Multi-Color Dot — All Levels

This class welcomes everyone, regardless of experience or background. No prior knowledge is needed—and those with years of experience will find equal value here. Simply show up ready to engage.