For trails or races where there is a drop, please indicate the category: the races are classified by "km/effort" (sum of the distance expressed in km increased by one km for 100m of positive drop). A 65km race with 3500m of D+ represents 100km/effort     65+35=100

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Categories trails      km/effort

XXS                0 - 24              

XS                            25 - 44

S                              45 - 74

M                             75 - 114

I                              115 - 154

XL                            155 - 209

XXL                         210 and more

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