Caution flag breakdown: | Condition | From Lap | To Lap | # Of Laps | Reason | Free Pass |
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 | 1 | 17 | 17 | | |  | 18 | 24 | 7 | #22 engine | |  | 25 | 98 | 74 | | |  | 99 | 104 | 6 | #64 engine | |  | 105 | 115 | 11 | | |  | 116 | 118 | 3 | debris | |  | 119 | 121 | 3 | | |  | 122 | 128 | 7 | #32,59,72 accident turn 2 | |  | 129 | 168 | 40 | | |  | 169 | 174 | 6 | debris | |  | 175 | 176 | 2 | | |  | 177 | 183 | 7 | #07 engine | |  | 184 | 236 | 53 | | |  | 237 | 244 | 8 | #79,90 accident turns 3/4 | |  | 245 | 252 | 8 | | |  | 253 | 262 | 10 | #99,17 accident turn 3 | |  | 263 | 297 | 35 | | |  | 298 | 305 | 8 | #6 accident turn 3 | |  | 306 | 370 | 65 | | |  | 371 | 375 | 5 | #62 accident turn 3 | |  | 376 | 400 | 25 | | | Percent of race run under caution: 16.8% Average green flag run: 30.3 laps |
Lap leader breakdown: | Leader | From Lap | To Lap | # Of Laps |
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Bobby Isaac | 1 | 19 | 19 | Charlie Glotzbach | 20 | 20 | 1 | James Hylton | 21 | 23 | 3 | Jim Vandiver | 24 | 29 | 6 | LeeRoy Yarbrough | 30 | 79 | 50 | Donnie Allison | 80 | 81 | 2 | LeeRoy Yarbrough | 82 | 84 | 3 | James Hylton | 85 | 90 | 6 | Donnie Allison | 91 | 99 | 9 | Buddy Baker | 100 | 100 | 1 | Jim Paschal | 101 | 111 | 11 | David Pearson | 112 | 116 | 5 | Cale Yarborough | 117 | 117 | 1 | David Pearson | 118 | 119 | 2 | Donnie Allison | 120 | 147 | 28 | Fred Lorenzen | 148 | 172 | 25 | Charlie Glotzbach | 173 | 185 | 13 | Fred Lorenzen | 186 | 186 | 1 | Charlie Glotzbach | 187 | 188 | 2 | Fred Lorenzen | 189 | 193 | 5 | Charlie Glotzbach | 194 | 226 | 33 | Fred Lorenzen | 227 | 238 | 12 | David Pearson | 239 | 248 | 10 | Fred Lorenzen | 249 | 252 | 4 | Donnie Allison | 253 | 300 | 48 | David Pearson | 301 | 301 | 1 | Donnie Allison | 302 | 317 | 16 | David Pearson | 318 | 362 | 45 | Donnie Allison | 363 | 400 | 38 |
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