School Record History
SR
— broken 10 times since 1988
Record Holders
Record Progression
School record at time
Class:
| Rank ↕ | Athlete ↕ | Mark ↕ |
|---|---|---|
| 1 |
46.10
SR
|
|
| 2 |
46.64
SR
|
|
| 3 |
46.82
|
|
| 4 |
46.90
|
|
| 5 |
47.05
|
|
| 6 |
47.10
|
|
| 7 |
47.26
SR
|
|
| 8 |
47.30
|
|
| 9 |
47.33
|
|
| 10 |
47.43
|
|
| 11 |
47.51
|
|
| 12 |
47.53
|
|
| 13 |
47.83
|
|
| 14 |
47.84
|
|
| 15 |
47.85
SR
|
|
| 16 |
48.29
|
|
| 17 |
48.35
|
|
| 18 |
48.37
|
|
| 19 |
48.37
|
|
| 20 |
48.45
|
|
| 21 |
48.50
|
|
| 22 |
48.53
|
|
| 23 |
48.56
|
|
| 24 |
48.58
|
|
| 25 |
48.62
|
|
| 26 |
48.70
|
|
| 27 |
48.72
|
|
| 28 |
48.73
|
|
| 29 |
48.79
SR
|
|
| 30 |
48.89
|
|
| 31 |
49.10
SR
|
|
| 32 |
49.16
|
|
| 33 |
49.20
SR
|
|
| 34 |
49.30
|
|
| 35 |
49.32
|
|
| 36 |
49.35
|
|
| 37 |
49.47
|
|
| 38 |
49.60
|
|
| 39 |
49.67
|
|
| 40 |
49.70
|
|
| 41 |
49.82
|
|
| 42 |
49.95
|
|
| 43 |
50.00
|
|
| 44 |
50.00
|
|
| 45 |
50.04
|
|
| 46 |
50.20
|
|
| 47 |
50.20
|
|
| 48 |
50.22
|
|
| 49 |
50.30
|
|
| 50 |
50.36
|
|
| 51 |
50.39
|
|
| 52 |
50.43
|
|
| 53 |
50.45
|
|
| 54 |
50.46
|
|
| 55 |
50.50
|
|
| 56 |
50.50
|
|
| 57 |
50.51
|
|
| 58 |
50.62
|
|
| 59 |
50.63
|
|
| 60 |
50.75
|
|
| 61 |
50.77
|
|
| 62 |
50.80
|
|
| 63 |
50.80
|
|
| 64 |
50.84
|
|
| 65 |
50.86
|
|
| 66 |
50.88
|
|
| 67 |
50.90
|
|
| 68 |
50.90
|
|
| 69 |
51.00
|
|
| 70 |
51.11
|
|
| 71 |
51.23
|
|
| 72 |
51.30
|
|
| 73 |
51.30
|
|
| 74 |
51.30
SR
|
|
| 75 |
51.31
|
|
| 76 |
51.34
|
|
| 77 |
51.39
|
|
| 78 |
51.42
|
|
| 79 |
51.48
|
|
| 80 |
51.49
|
|
| 81 |
51.50
|
|
| 82 |
51.50
|
|
| 83 |
51.52
|
|
| 84 |
51.55
|
|
| 85 |
51.57
|
|
| 86 |
51.58
|
|
| 87 |
51.58
|
|
| 88 |
51.71
|
|
| 89 |
51.76
|
|
| 90 |
51.79
|
|
| 91 |
51.81
|
|
| 92 |
51.83
|
|
| 93 |
51.86
|
|
| 94 |
51.90
|
|
| 95 |
51.93
|
|
| 96 |
51.95
|
|
| 97 |
52.00
|
|
| 98 |
52.00
|
|
| 99 |
52.05
|
|
| 100 |
52.07
|
|
| 101 |
52.16
|
|
| 102 |
52.19
|
|
| 103 |
52.19
|
|
| 104 |
52.20
|
|
| 105 |
52.20
|
|
| 106 |
52.24
|
|
| 107 |
52.27
|
|
| 108 |
52.30
|
|
| 109 |
52.31
|
|
| 110 |
52.33
|
|
| 111 |
52.40
|
|
| 112 |
52.50
|
|
| 113 |
52.56
|
|
| 114 |
52.57
|
|
| 115 |
52.61
|
|
| 116 |
52.62
|
|
| 117 |
52.63
|
|
| 118 |
52.64
|
|
| 119 |
52.71
|
|
| 120 |
52.80
|
|
| 121 |
52.82
|
|
| 122 |
52.85
|
|
| 123 |
52.88
|
|
| 124 |
52.90
|
|
| 125 |
52.90
|
|
| 126 |
52.90
|
|
| 127 |
52.90
SR
|
|
| 128 |
52.98
|
|
| 129 |
52.99
|
|
| 130 |
52.99
|
|
| 131 |
53.00
|
|
| 132 |
53.00
|
|
| 133 |
53.00
|
|
| 134 |
53.00
|
|
| 135 |
53.02
|
|
| 136 |
53.10
|
|
| 137 |
53.10
|
|
| 138 |
53.10
|
|
| 139 |
53.12
|
|
| 140 |
53.17
|
|
| 141 |
53.20
|
|
| 142 |
53.20
|
|
| 143 |
53.21
|
|
| 144 |
53.24
|
|
| 145 |
53.30
|
|
| 146 |
53.33
|
|
| 147 |
53.34
|
|
| 148 |
53.34
|
|
| 149 |
53.40
|
|
| 150 |
53.40
|
|
| 151 |
53.61
|
|
| 152 |
53.63
|
|
| 153 |
53.69
|
|
| 154 |
53.70
|
|
| 155 |
53.70
|
|
| 156 |
53.75
|
|
| 157 |
53.79
|
|
| 158 |
53.80
|
|
| 159 |
53.81
|
|
| 160 |
53.90
|
|
| 161 |
53.90
SR
|
|
| 162 |
53.93
|
|
| 163 |
53.97
|
|
| 164 |
54.00
|
|
| 165 |
54.00
|
|
| 166 |
54.01
|
|
| 167 |
54.10
|
|
| 168 |
54.12
|
|
| 169 |
54.12
|
|
| 170 |
54.25
|
|
| 171 |
54.30
|
|
| 172 |
54.37
|
|
| 173 |
54.40
|
|
| 174 |
54.40
|
|
| 175 |
54.42
|
|
| 176 |
54.57
|
|
| 177 |
54.59
|
|
| 178 |
54.59
|
|
| 179 |
54.89
|
|
| 180 |
54.93
|
|
| 181 |
54.99
|
|
| 182 |
55.00
|
|
| 183 |
55.07
SR
|
|
| 184 |
55.13
|
|
| 185 |
55.13
|
|
| 186 |
55.37
|
|
| 187 |
55.40
|
|
| 188 |
55.47
|
|
| 189 |
55.49
|
|
| 190 |
55.50
|
|
| 191 |
55.51
|
|
| 192 |
55.60
|
|
| 193 |
55.61
|
|
| 194 |
55.63
|
|
| 195 |
55.63
|
|
| 196 |
55.70
|
|
| 197 |
55.70
|
|
| 198 |
55.80
|
|
| 199 |
55.84
|
|
| 200 |
55.84
|
|
| 201 |
55.88
|
|
| 202 |
55.90
|
|
| 203 |
56.00
|
|
| 204 |
56.19
|
|
| 205 |
56.20
|
|
| 206 |
56.30
|
|
| 207 |
56.35
|
|
| 208 |
56.39
|
|
| 209 |
56.40
|
|
| 210 |
56.47
|
|
| 211 |
56.51
|
|
| 212 |
56.60
|
|
| 213 |
56.65
|
|
| 214 |
56.68
|
|
| 215 |
56.75
|
|
| 216 |
56.80
|
|
| 217 |
56.90
|
|
| 218 |
56.90
|
|
| 219 |
56.93
|
|
| 220 |
56.94
|
|
| 221 |
57.11
|
|
| 222 |
57.13
|
|
| 223 |
57.20
|
|
| 224 |
57.20
|
|
| 225 |
57.67
|
|
| 226 |
57.73
|
|
| 227 |
57.74
|
|
| 228 |
57.80
|
|
| 229 |
57.87
|
|
| 230 |
57.90
|
|
| 231 |
58.02
|
|
| 232 |
58.30
|
|
| 233 |
58.30
|
|
| 234 |
58.40
|
|
| 235 |
58.42
|
|
| 236 |
58.47
|
|
| 237 |
58.60
|
|
| 238 |
58.80
|
|
| 239 |
58.84
|
|
| 240 |
59.00
|
|
| 241 |
59.10
|
|
| 242 |
59.20
|
|
| 243 |
59.30
|
|
| 244 |
59.44
|
|
| 245 |
59.54
|
|
| 246 |
59.70
|
|
| 247 |
59.96
|
|
| 248 |
59.97
|
|
| 249 |
1:00.10
|
|
| 250 |
1:00.37
|
|
| 251 |
1:00.40
|
|
| 252 |
1:00.49
|
|
| 253 |
1:00.50
|
|
| 254 |
1:00.51
|
|
| 255 |
1:00.60
|
|
| 256 |
1:00.67
|
|
| 257 |
1:00.76
|
|
| 258 |
1:00.77
|
|
| 259 |
1:00.77
|
|
| 260 |
1:00.80
|
|
| 261 |
1:00.90
|
|
| 262 |
1:01.29
|
|
| 263 |
1:01.30
|
|
| 264 |
1:01.33
|
|
| 265 |
1:01.35
|
|
| 266 |
1:01.39
|
|
| 267 |
1:01.48
|
|
| 268 |
1:01.63
|
|
| 269 |
1:01.72
|
|
| 270 |
1:01.94
|
|
| 271 |
1:01.94
|
|
| 272 |
1:02.20
|
|
| 273 |
1:02.20
|
|
| 274 |
1:02.32
|
|
| 275 |
1:02.43
|
|
| 276 |
1:02.80
|
|
| 277 |
1:03.10
|
|
| 278 |
1:03.16
|
|
| 279 |
1:03.30
|
|
| 280 |
1:03.30
|
|
| 281 |
1:04.00
|
|
| 282 |
1:04.00
|
|
| 283 |
1:04.10
|
|
| 284 |
1:04.25
|
|
| 285 |
1:04.33
|
|
| 286 |
1:04.50
|
|
| 287 |
1:04.72
|
|
| 288 |
1:04.84
|
|
| 289 |
1:05.48
|
|
| 290 |
1:05.60
|
|
| 291 |
1:05.69
|
|
| 292 |
1:05.70
|
|
| 293 |
1:06.00
|
|
| 294 |
1:06.77
|
|
| 295 |
1:09.17
|