I seem to be incapable of just doing something without wondering about the statistics behind it these days.
Back in May I ran my first marathon (and I reckon I finished in a decent time, 3h24m. I was aiming for under 3h45m). Much as when I ran the Glasgow half last year I found myself wondering how it really compares.
As ever, getting access to the data is a process akin to tooth pulling, but you can get the resulting csv file from this gist.
Rather than attempt to provide a deep analysis of these data, I’ll just drop a couple of plots.
The first of these are the histograms of all the men’s (blue) and women’s (red) finish times.

There aren’t really any surprises in this; the women’s finish times somewhat lag the men’s, but this is generally what we see in histograms of races. I was a little surprised by how quickly the men’s distribution drops off after around 4h30m compared to the much gentler drop-off at long race times for the women’s times. Indeed, I was originally worried that there was a problem with the data, but it seems like this is correct.

Splitting things up by category (a proxy for age), and gender gives us a better idea of how times vary as runners get more mature. There’s some received wisdom that the youngest runners tend not to be as fast as slightly older ones; I’m not sure these data support that strongly (without doing some real statistics to check it), however the 5-percentile time for men holds quite steady at around 166 minutes until runners pass 40, so maybe there’s something in it.
Anyway, my 225-minute performance brings me in at the 65th percentile of men my age in a running club, so if I ever do this more speed is required (or I can continue to make the excuse that there was an insufficient amount of climb and bog on the EMF route this year).
Appendix: Table of percentiles
men club U35 | men non club U35 | men overall U35 | women club U35 | women non club U35 | women overall U35 | men club 35 | men non club 35 | men overall 35 | women club 35 | women non club 35 | women overall 35 | men club 40 | men non club 40 | men overall 40 | women club 40 | women non club 40 | women overall 40 | men club 45 | men non club 45 | men overall 45 | women club 45 | women non club 45 | women overall 45 | men club 50 | men non club 50 | men overall 50 | women club 50 | women non club 50 | women overall 50 | men club 55 | men non club 55 | men overall 55 | women club 55 | women non club 55 | women overall 55 | men club 60 | men non club 60 | men overall 60 | women club 60 | women non club 60 | women overall 60 | men club 65 | men non club 65 | men overall 65 | women club 65 | women non club 65 | women overall 65 | |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0.05 | 163.667 | 182.253 | 178.733 | 193.867 | 216.117 | 213.752 | 166.402 | 187.767 | 180.367 | 203.472 | 224.597 | 216.89 | 166.363 | 187.567 | 178.534 | 196.134 | 222.892 | 215.596 | 177.942 | 189.353 | 183.25 | 207.017 | 227.512 | 219.949 | 168.093 | 194.51 | 185.606 | 206.557 | 232.868 | 227.173 | 184.2 | 202.933 | 197.567 | 236.748 | 244.927 | 242.017 | 198.55 | 209.757 | 201.85 | 228.624 | 243.71 | 243.52 | 193.083 | 210.397 | 195.283 | 268.837 | 293.058 | 274.97 |
0.1 | 169.042 | 196.753 | 191.2 | 204.323 | 226.913 | 224.03 | 177.52 | 198.333 | 192.033 | 214.355 | 232.538 | 229.062 | 172.567 | 197.367 | 189.883 | 212.235 | 235.457 | 227 | 182.817 | 197.433 | 193.163 | 219.45 | 237.022 | 233.935 | 179.5 | 203.6 | 197.667 | 227.503 | 240.372 | 236.35 | 191.133 | 212.65 | 204.4 | 243.297 | 258.495 | 252.947 | 202.993 | 221.993 | 208.867 | 250.45 | 258.653 | 255.727 | 202.14 | 215.197 | 208.568 | 271.625 | 293.75 | 286.3 |
0.15 | 171.967 | 204.483 | 200.553 | 212.773 | 235.77 | 233.189 | 180.618 | 205.075 | 199.427 | 219.267 | 241.548 | 234.375 | 178.598 | 203.817 | 197.367 | 218.997 | 240.781 | 234.037 | 191.608 | 207.467 | 204.15 | 231.629 | 245.938 | 239.059 | 188.02 | 211.207 | 202.543 | 234.89 | 248.253 | 246.39 | 199.683 | 219.9 | 212.678 | 259.138 | 265.647 | 262.793 | 206.257 | 230.367 | 216.083 | 258.142 | 265.6 | 260.643 | 209.967 | 227.75 | 215.517 | 274.413 | 296.1 | 292.92 |
0.2 | 177.5 | 209.95 | 207.353 | 216.24 | 242.907 | 239.93 | 188.41 | 210.467 | 205.863 | 231.207 | 248.61 | 243.59 | 181.307 | 209.8 | 203.45 | 225.417 | 245.817 | 239.633 | 198.417 | 214.783 | 210.3 | 238.683 | 252.803 | 246.4 | 196.233 | 219.85 | 211.8 | 252.873 | 252.263 | 252.267 | 207.6 | 226.3 | 219.15 | 266.067 | 268.31 | 267.847 | 209.017 | 236.533 | 222.683 | 270.293 | 278.383 | 277.78 | 217.6 | 249.26 | 223.933 | 277.2 | 298.45 | 294.69 |
0.25 | 182.142 | 216.067 | 213.133 | 224.733 | 249.433 | 246.517 | 191.287 | 216.617 | 210.183 | 233.971 | 256.512 | 249.567 | 189.4 | 215.117 | 208.621 | 228.192 | 251.867 | 245.396 | 207.033 | 220.117 | 215.342 | 241.654 | 260.338 | 251.721 | 199.575 | 229.25 | 218.779 | 257.367 | 256.729 | 256.833 | 214.8 | 231.45 | 225.463 | 271.183 | 271.358 | 271.183 | 214.267 | 239.233 | 230.7 | 279.033 | 282.683 | 281.3 | 223.933 | 261.9 | 226.767 | 284.258 | 303.267 | 298.45 |
0.3 | 187.383 | 221.287 | 218.967 | 231.207 | 254.79 | 253.098 | 194.225 | 221.9 | 216.083 | 239.328 | 263.687 | 256.94 | 194.93 | 222.197 | 212.883 | 230.262 | 259.223 | 251.592 | 210.35 | 225.3 | 220.917 | 245.867 | 264.742 | 260.735 | 204.357 | 233.38 | 225.3 | 267.527 | 262.86 | 263.19 | 217.65 | 235.483 | 229.817 | 276.187 | 278.307 | 277.257 | 221.527 | 243.167 | 236.697 | 281.72 | 287.637 | 284.633 | 224.55 | 264.9 | 232.392 | 291.317 | 308.083 | 304.037 |
0.35 | 190.467 | 225.697 | 223.667 | 235.29 | 260.633 | 258.804 | 197.183 | 227.508 | 221.5 | 249.509 | 270.989 | 261.313 | 197.563 | 226.637 | 221.183 | 237.43 | 266.015 | 259.208 | 214.65 | 229.617 | 225.75 | 248.117 | 271.548 | 266.147 | 214.875 | 239.333 | 230.817 | 272.953 | 268.143 | 268.47 | 223.583 | 240.779 | 233.65 | 278.992 | 282.572 | 280.143 | 229.733 | 245.167 | 240.22 | 283.976 | 290.78 | 286.847 | 226.767 | 269.633 | 251.701 | 298.375 | 309.05 | 307.023 |
0.4 | 196.883 | 230.533 | 227.767 | 239.247 | 265.483 | 263.777 | 202.4 | 232.833 | 227.463 | 254.653 | 278.05 | 271.327 | 203.25 | 231.05 | 225.8 | 239.82 | 272.317 | 266.05 | 218.167 | 234.667 | 229.637 | 256.783 | 275.963 | 273.213 | 217.503 | 243.577 | 234.557 | 279.35 | 273.117 | 276.62 | 227.083 | 245.817 | 236.667 | 280.19 | 287.713 | 286.813 | 230.7 | 252.767 | 244.527 | 285.687 | 293.38 | 290.523 | 230.817 | 276.9 | 257.617 | 305.433 | 310.017 | 308.857 |
0.45 | 203.6 | 234.333 | 232.643 | 247.16 | 270.323 | 268.178 | 206.033 | 236.917 | 232.813 | 258.114 | 283.392 | 278.989 | 206.433 | 236.047 | 230.777 | 247.962 | 279.307 | 272.625 | 222.079 | 237.567 | 235.067 | 268.254 | 279.962 | 276.626 | 223.403 | 245.75 | 241.05 | 284.077 | 284.829 | 284.077 | 229.833 | 249.667 | 242.218 | 286.953 | 292.71 | 290.607 | 237.27 | 254.995 | 250.36 | 286.348 | 303.52 | 293.38 | 232.567 | 278.567 | 261.233 | 307.496 | 320.767 | 310.75 |
0.5 | 208.592 | 237.983 | 236.533 | 254.967 | 276.1 | 272.842 | 208.4 | 239.933 | 237.25 | 259.85 | 288.308 | 283.558 | 208.833 | 241.25 | 235.917 | 258.558 | 283.825 | 279.35 | 227.267 | 240.933 | 237.267 | 272.708 | 286 | 282.858 | 228.467 | 252.417 | 244.183 | 289.85 | 290.592 | 290.2 | 233.35 | 255.083 | 247.892 | 290.817 | 302.45 | 300.017 | 243.867 | 258.967 | 253.633 | 287.075 | 312.933 | 304.167 | 256.283 | 279.683 | 262.283 | 309.558 | 331.517 | 313.683 |
0.55 | 211.9 | 242.043 | 240 | 260.895 | 281.84 | 279.443 | 210.7 | 244.683 | 240.833 | 274.157 | 292.817 | 288.967 | 215.2 | 247.717 | 240.981 | 264.732 | 289.361 | 283.754 | 231.708 | 246.197 | 240.01 | 279.054 | 289.69 | 287.272 | 231.4 | 259.117 | 248.967 | 292.707 | 300.072 | 295.41 | 235.683 | 259.3 | 252.454 | 301.545 | 306.84 | 305.09 | 249.683 | 264.445 | 259.283 | 290.127 | 320.96 | 313.767 | 257.057 | 279.843 | 265.717 | 311.621 | 332.225 | 317.39 |
0.6 | 219.867 | 247.723 | 245.45 | 265.547 | 287.113 | 285.9 | 216.817 | 251.167 | 245.833 | 280.68 | 301.277 | 293.837 | 221.717 | 253.033 | 247.717 | 269.713 | 296.167 | 291.467 | 235.1 | 251.617 | 246.933 | 286.167 | 295.43 | 291.977 | 232.867 | 263.783 | 257.76 | 296.733 | 309.827 | 305.31 | 239.433 | 263.783 | 258.4 | 308.21 | 312.09 | 310.81 | 251.217 | 270.167 | 265.933 | 300.863 | 322.447 | 321.373 | 258.35 | 283.853 | 269.2 | 313.683 | 332.933 | 324.067 |
0.65 | 225.25 | 254.1 | 251.187 | 269.632 | 291.763 | 290.3 | 225.667 | 256.85 | 252.4 | 285.113 | 308.9 | 302.144 | 228.333 | 259.833 | 253.617 | 278.722 | 304.719 | 297.383 | 236.683 | 260.15 | 252.225 | 290.296 | 300.067 | 297.48 | 235.667 | 267.563 | 263.417 | 304.747 | 318.678 | 315.143 | 248.133 | 266.913 | 262.633 | 312.658 | 316.333 | 316.01 | 265.45 | 278.283 | 270.167 | 309.049 | 323.968 | 322.943 | 259.943 | 287.28 | 277.65 | 314.842 | 340.142 | 329.347 |
0.7 | 231 | 259.233 | 257.487 | 274.547 | 297.707 | 295.833 | 230.95 | 260.6 | 258.51 | 291.753 | 314.397 | 312.475 | 236.183 | 264.6 | 260.662 | 280.807 | 314.132 | 305.742 | 239.05 | 263.743 | 261.62 | 294.342 | 305.927 | 303.257 | 243.5 | 272.1 | 267.333 | 312.52 | 325.39 | 323.05 | 252.3 | 272.075 | 264.233 | 323.037 | 323.902 | 323.557 | 267.083 | 282.263 | 278.283 | 315.983 | 329.367 | 325.973 | 261.443 | 290.027 | 279.703 | 316 | 347.35 | 331.8 |
0.75 | 235.283 | 264.917 | 263.283 | 285.008 | 305.167 | 303.783 | 237.158 | 266.817 | 263.3 | 299.529 | 320.075 | 317.638 | 241.508 | 269.383 | 265.829 | 291.092 | 321.062 | 316.433 | 247.633 | 271.167 | 267.783 | 300.75 | 313.875 | 307.979 | 252.6 | 275.933 | 272.142 | 323.033 | 330.6 | 328.317 | 259.9 | 276.108 | 271.096 | 324.733 | 336.704 | 327.733 | 274.133 | 289.188 | 280.133 | 322.267 | 337.375 | 335 | 262.283 | 298.133 | 286.525 | 317.158 | 353.325 | 332.933 |
0.8 | 241.6 | 271.07 | 269.6 | 290.933 | 315.033 | 312.367 | 242.7 | 273.117 | 269.95 | 314.707 | 331.22 | 330.643 | 251 | 275.537 | 273.267 | 300.273 | 327.223 | 325.15 | 262.933 | 276.517 | 274.37 | 304.933 | 327.463 | 321.87 | 262.85 | 280.367 | 276.667 | 325.05 | 339.477 | 332.977 | 262.767 | 280.933 | 276.293 | 326.95 | 343.207 | 337.663 | 279.467 | 297.59 | 288.433 | 328.81 | 341.62 | 337.24 | 265.717 | 314.343 | 294.213 | 318.317 | 359.3 | 344.467 |
0.85 | 247.033 | 277.867 | 276.167 | 297.773 | 325.033 | 322.383 | 250.47 | 280.383 | 277.65 | 330.986 | 338.95 | 338.168 | 257.483 | 285.12 | 280.433 | 312.244 | 336.462 | 333.304 | 271.267 | 288.83 | 282.73 | 324.033 | 339.292 | 336.929 | 269.183 | 292.687 | 285.982 | 331.817 | 344.067 | 342.19 | 263.133 | 290.387 | 284.587 | 335.218 | 348.688 | 345.733 | 280.133 | 310.485 | 300.68 | 335.022 | 347.782 | 341.73 | 267.467 | 318.497 | 304.369 | 320.712 | 360.642 | 354.52 |
0.9 | 253.408 | 290.983 | 289.013 | 309.67 | 337.587 | 335.133 | 265.085 | 294.083 | 289.653 | 345.17 | 355.588 | 352.94 | 274.52 | 301.447 | 297.977 | 325.592 | 356.422 | 352.492 | 282.458 | 303.937 | 299.197 | 338.667 | 356.543 | 350.825 | 279.717 | 303.85 | 298.5 | 341.317 | 356.013 | 353.423 | 278.267 | 303.858 | 298.04 | 338.027 | 356.177 | 352.847 | 294.183 | 337.217 | 315.47 | 335.315 | 360.977 | 357.51 | 300.43 | 326.047 | 323.585 | 323.108 | 361.983 | 360.373 |
0.95 | 273.417 | 314.34 | 312.6 | 331.235 | 356.653 | 354.285 | 274.603 | 322.942 | 314.62 | 353.375 | 372.088 | 371.645 | 291.22 | 325.883 | 321.948 | 350.762 | 367.635 | 366.238 | 307.654 | 323.067 | 320.902 | 340.692 | 364.27 | 363.73 | 297.253 | 331.117 | 327.346 | 359.233 | 364.742 | 364.767 | 296.975 | 332.296 | 326.047 | 350.29 | 360.496 | 358.033 | 315.197 | 362.523 | 346.517 | 343.074 | 373.018 | 366.02 | 344.407 | 331.27 | 337.562 | 325.504 | 362.867 | 362.337 |
1 | 397.833 | 435.333 | 435.333 | 374.933 | 409.967 | 409.967 | 378.9 | 408.233 | 408.233 | 401.75 | 424.583 | 424.583 | 412.717 | 420 | 420 | 395.417 | 401.1 | 401.1 | 402.35 | 407.617 | 407.617 | 413.55 | 395.783 | 413.55 | 359.6 | 390.633 | 390.633 | 395.783 | 392.383 | 395.783 | 355.067 | 405.533 | 405.533 | 384.5 | 370.617 | 384.5 | 358.783 | 403.7 | 403.7 | 357.233 | 403.7 | 403.7 | 350.167 | 376.05 | 376.05 | 327.9 | 363.75 | 363.75 |