Grade (bouldering)

"V scale" redirects here. For the game railroad model, see V scale (railroad model)

In the sport of bouldering, problems are assigned technical grades according to several established systems, which are often distinct from those used in roped climbing. Bouldering grade systems in wide use include the Hueco "V" grades (known as the V-scale), Fontainebleau technical grades, route colors, Peak District grades, and British technical grades. Historically, the three-level "B" system and even the Yosemite Decimal System (sometimes with a "B" prepended, as in "B5.12") were also used.

The Gill "B" system

The B-System conceived by John Gill in the 1950s was a universal rating scheme for bouldering, having three categories: "B1" was defined as "... the highest level of difficulty in traditional roped climbing", "B2" was harder than B1, or "bouldering level", and the grade "B3" designated a route ascended only once, although tried by others on several occasions. When a B3 was ascended a second time, it was reclassified as a B2, or B1. Gill's idea was to attract climbers to the "new" sport of bouldering, but discourage turning that sport into a numbers race. His system depended heavily on traditional climbing standards, long before sport climbing came into existence. It was assumed that the scale would shift as traditional difficulty levels rose. Thus, e.g., a B1(1958) would be easier than a B1(1968).

The system - designed in the early days of "modern bouldering" (i.e., bouldering interpreted as a legitimate form of rock climbing to be practiced anywhere the terrain is suitable, and not simply as training or as a minor, playful divertissement) - has never been in worldwide use. Occasionally climbers visiting bouldering destinations in North America encounter boulder problems with B ratings. The difficulty of these problems are now commonly quantified by John Sherman's V-Scale. The Gill B-System is respected, and has amusing and historical connotations, but has limitations in modern, competitive bouldering involving many climbers. Gill, citing the fragmentation of his categories into "B1-", "B1+", etc., blames the decline in popularity of his B-System upon it being "against the grain of normal competitive structures, where a simple open progression of numbers or letters indicates progress." [1][2][3]

Fontainebleau grades

In Europe the Fontainebleau grading is the most widely used. The open-ended numerical system ranges from 1A  to 9A ,[4] but problems easier than 2B  are rarely found. The adjectival system goes from F- (Facile Inf, lower easy) to ED+ (Extrêmement Difficile Sup, Extremely Difficult Higher). The system was first devised to classify the sandstone climbing in the Fontainebleau area, but is now widely used also in other bouldering areas around the world.

The grades in this system are similar to the French route grades, but have different meaning. An 8a route is significantly easier than an 8A boulder problem. To reduce confusion, some people write the bouldering grades in upper-case letters (e.g. "8B+" vs. "8b+").

Route colors

At Fontainebleau itself, the route colour system is used everywhere in the forest. The colours used in order of difficulty of the course are white (children's routes), yellow (F), orange (AD), blue (D), red (TD), black (ED) and white (ED+).[5] Fontainebleau guidebooks typically provide the numerical difficulty of individual boulders.[6]

The Hueco scale

The "V" Scale, devised by John 'Vermin' Sherman at Hueco Tanks State Historic Site in the 1990s, is the most widely used system in North America. Although open-ended, the "V" system currently covers a range from V0 to V17.[7] At the easier end of the scale, some use the designation "VB" (sometimes said to designate "basic" or "beginner") for problems easier than a V0. Particularly at the lower end of the scale, the grades are sometimes postfixed with "+" (harder) or "-" (easier) to further distinguish the difficulty range within a single grade. Next-wave ascents harder than the current set of top-end problems will hypothetically continue to increase numbers in the scale.

The scale is similar to many other systems in that it does not take danger or fear into account. Problems are rated based solely on the physical challenge involved. This implies that problems have the same grade on the V-scale on toprope as they would have when bouldered.[8] Due to this limitation, guidebooks will often separately indicate when problems are dangerous for various reasons, for example, using the term 'highball' to indicate unusually tall boulders. If the terrain underneath the problem is especially sketchy (rocky, unusually steep, or for any other reason), the 'landing' of the problem will frequently be noted. Some world-class climbers encourage the use of the British E scale in cases where these dangers affect the difficulty of problems.[9]

Conceptually, the "V" Scale is the bouldering equivalent of the earlier Australian (Ewbank) grading system for climbing - both have the advantages of not predefining an upper limit on difficulty measurement (as happened with the original Yosemite Decimal System), nor of having artificial divisions within the range of grades (as is the case with most other grading systems that use designations such as "a", "b", "c", "d", "+", "-" etc. within a single "grade").

United Kingdom technical grades

In the UK, the system known as UK technical grades is occasionally used to rate a boulder problem. These run from 4a to 7b with steps of a, b and c before changing the initial number. This system is applied because these technical grades are used in the UK grading system for trad routes to represent the absolute difficulty of the hardest move. UK technical grades were only designed to describe the difficulty of a single move making them unsuitable for grading boulders and V or Font grades are generally used instead.

Japanese Dankyu system

Japan also has developed its own grading system widely used by the local climbers of the country, adopting the Dankyu (Dan and Kyu) system which resembles that of martial arts. It is also called the Soroban system, meaning grading system used in Japanese abacus schools. Like in martial arts, 1-Kyu is the hardest Kyu and it gets easier as the number ascends. 1-Kyu is the baseline grade represented by Captain Ahab in Ogawayama or Ninjagaeshi in Mitake, and is roughly equal to 6c+/7a in Fontainebleau grades or V5/V6 in Hueco scale. Kyu is open-ended on the easier side but practically the easiest problem could be around 10-Kyu. Dan starts from where kyu ends, Shodan (or 1-Dan) being the next grade higher than 1-Kyu, making it about 7a+/7b in Fontainebleau, V7/V8 in Hueco. Climbing a shodan problem means the climber has reached the advanced level. Dan gets harder as the number ascends, and is open-ended on the harder side. The Wheel of Life (V15/8C[10]) is graded at 6-Dan. A comparison between Fontainebleau and Dankyu bouldering grades suggests that 6 kyu is equivalent to 4a/4c Fontainebleau.[11]

Comparisons of bouldering grades

Many attempts have been made to correlate the various grading systems, comparing not only grades in different bouldering systems, but also bouldering grades with traditional or sport climbing grades as well. Sometimes, there will be lack of agreement among boulderers on the difficulty of a particular problem using a single system, due to differences in size, reach, and other factors. That makes a consensus about equivalences among the various systems even less likely.

Bouldering Rating Systems
V2 5+

See also


  1. Gill, John. "A Golden Age of American Bouldering" (Web). Retrieved 2010-10-05.
  2. Wenner, Alex (2003). "Die Boulderlegende John Gill" (Web). Retrieved 2010-10-05.
  3. "John Gill, el padre del búlder" (Web). Retrieved 2014-01-01.
  4. Pohl, Björn. "Nalle Hukkataival puts up Burden of Dreams ~9A!". ukclimbing. Retrieved 26 October 2016.
  5. "Fontainebleau Guide". Archived from the original (Web) on September 25, 2009. Retrieved 2010-10-05.
  6. Escalade à Bleau, Tome 1: Les Trois Pignons, COSIROC
  7. "Nalle Hukkataival Sends World's First V17". rockandice. Retrieved 26 October 2016.
  8. Sherman, John (1995). Hueco Tanks: Climbing and Bouldering Guide (2nd ed.). ISBN 0-934641-87-0.
  9. Ryan, Mick (2007-04-26). "E-grades for American Highball Boulder Problems" (Web). UKClimbing Limited. Retrieved 2010-10-05.
  11. Wiklund, Jonas (2007-04-18). "Grades and steps". Japan.
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