▁of ▁time . ▁This ▁involves ▁having ▁two ▁pairs ▁of ▁sk aters ▁in ▁the ▁lan es ▁at ▁the ▁same ▁time , ▁but ▁with ▁the ▁second ▁pair ▁starting ▁when ▁the ▁first ▁have ▁completed ▁approximately ▁half ▁of ▁the ▁first ▁lap . ▁The ▁sk aters ▁in ▁the ▁second ▁pair ▁will ▁then ▁wear ▁yellow ▁and ▁blue ▁arm ▁bands ▁instead ▁of ▁the ▁usual ▁white ▁and ▁red . ▁ ▁R ink ▁ ▁Sk aters ▁race ▁on ▁a ▁two - lane ▁o val ▁r ink ▁similar ▁in ▁dimension ▁to ▁an ▁out door ▁athlet ics ▁track . ▁Indeed , ▁an ▁athlet ics ▁track ▁covered ▁with ▁ice ▁can ▁function ▁as ▁a ▁speed ▁sk ating ▁track , ▁such ▁as ▁Bis lett ▁stad ion ▁in ▁Os lo ▁up ▁to ▁the ▁ 1 9 8 0 s . ▁According ▁to ▁the ▁rules ▁of ▁the ▁International ▁Sk ating ▁Union , ▁a ▁standard ▁track ▁should ▁be ▁either ▁ 4 0 0   m ▁or ▁ 3 3 3 ⅓   m ▁long ; ▁ 4 0 0   m ▁is ▁the ▁standard ▁used ▁for ▁all ▁major ▁compet itions . ▁Tra cks ▁of ▁other , ▁non - standard ▁lengths , ▁such ▁ 2 0 0 ▁or ▁ 2 5 0   m , ▁are ▁also ▁in ▁use ▁in ▁some ▁places ▁for ▁training ▁and / or ▁smaller ▁local ▁compet itions . ▁On ▁standard ▁tracks , ▁the ▁curves ▁have ▁a ▁radius ▁of ▁ 2 5 – 2 6   m ▁in ▁the ▁inner ▁l ane , ▁and ▁each ▁l ane ▁is ▁ 3 – 4   m ▁wide . ▁ ▁Top