+ = 中段时间，及该项纪录来自于长程赛事的其中一段
ht = 手动计时
A = affected by altitude
nw = no wind measurement
# = not ratified by federation
a = aided road course according to IAAF rule 260.28
X = annulled due to doping violation
OT = oversized track (> 200m in circumference)