Brendan O'Brien
Chicago, IL
Bib: 8293 M
Race Timeline
The Course
Half Splits
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Checkpoint Splits
| Checkpoint | Time | Avg Pace | Segment Length | Segment Time | Segment Pace | Trend | Diff |
|---|---|---|---|---|---|---|---|
5K | 26:40 | 8:35 | 3.11 mi | 26:40 | 8:35 | - | |
10K | 52:13 | 8:24 | 3.10 mi | 25:33 | 8:13 | -0:22 | |
15K | 1:18:27 | 8:25 | 3.11 mi | 26:14 | 8:27 | +0:14 | |
21K | 1:49:56 | 8:25 | 3.73 mi | 31:29 | 8:27 | 0:00 | |
25K | 2:09:55 | 8:22 | 2.48 mi | 19:59 | 8:02 | -0:25 | |
30K | 2:35:43 | 8:21 | 3.11 mi | 25:48 | 8:18 | +0:16 | |
35K | 3:00:38 | 8:18 | 3.11 mi | 24:55 | 8:01 | -0:17 | |
40K | 3:27:30 | 8:21 | 3.10 mi | 26:52 | 8:39 | +0:38 | |
Finish(26.22 mi) | 3:41:30 | 8:27 | 1.37 mi | 14:00 | 10:16 | +1:37 |
Checkpoints & Pacing
Pace Line
Fastest Pace
8:01 /mi
Average Pace
8:27 /mi
Slowest Pace
10:16 /mi
Segments
Time at Faster Pace
44:54
20% of race
Time at Steady Pace
2:42:36
73% of race
Time at Slower Pace
14:00
6% of race
Average Pace: 8:27 /mi
Heatmap
Checkpoint and Segment Rankings
| Checkpoint | Seg. Dist | Overall | Males | M25-29 | Seg. Overall | Seg. Males | Seg. M25-29 |
|---|---|---|---|---|---|---|---|
| 5K | 3.11 mi | 2647 | 2126 | 466 | 3100 | 2474 | 559 |
| 10K | 3.10 mi | 2781-134 | 2232-106 | 495-29 | 2972 | 2400 | 533 |
| 15K | 3.11 mi | 2895-114 | 2317-85 | 519-24 | 3100 | 2474 | 559 |
| 21K | 3.73 mi | 2858+37 | 2286+31 | 516+3 | 2811 | 2261 | 521 |
| 25K | 2.48 mi | 2719+139 | 2185+101 | 497+19 | 2389 | 1926 | 438 |
| 30K | 3.11 mi | 2503+216 | 2011+174 | 458+39 | 1981 | 1596 | 368 |
| 35K | 3.11 mi | 2252+251 | 1805+206 | 405+53 | 1387 | 1122 | 265 |
| 40K | 3.10 mi | 2128+124 | 1687+118 | 382+23 | 1989 | 1492 | 339 |
| Finish(26.22 mi) | 1.37 mi | 2274-146 | 1790-103 | 403-21 | 5775 | 3864 | 798 |
Segment Performance Analysis
10K→15K
0.0 - 3.1 mi
Overall
3100
Males
2474
M25-29
2474
5K→10K
3.1 - 6.2 mi
Overall
2972
Males
2400
M25-29
2400
10K→15K
6.2 - 9.3 mi
Overall
3100
Males
2474
M25-29
2474
15K→21K
9.3 - 13.1 mi
Overall
2811
Males
2261
M25-29
2261
21K→25K
13.1 - 15.5 mi
Overall
2389
Males
1926
M25-29
1926
25K→30K
15.5 - 18.6 mi
Overall
1981
Males
1596
M25-29
1596
30K→35K
18.6 - 21.8 mi
Overall
1387
Males
1122
M25-29
1122
35K→40K
21.8 - 24.9 mi
Overall
1989
Males
1492
M25-29
1492
40K→Finish
24.9 - 26.2 mi
Overall
5775
Males
3864
M25-29
3864
Passing Analysis
| Segment | Passed | Passed By | Net Change | Start Rank | End Rank |
|---|---|---|---|---|---|
| Start → 5K | - | - | - | - | #2647 |
| 5K → 10K | 77* | 211 | -134 | #2647 | #2781 |
| 10K → 15K | 51* | 165 | -114 | #2781 | #2895 |
| 15K → 21K | 101* | 64 | +37 | #2895 | #2858 |
| 21K → 25K | 162* | 23 | +139 | #2858 | #2719 |
| 25K → 30K | 227* | 11 | +216 | #2719 | #2503 |
| 30K → 35K | 257* | 6 | +251 | #2503 | #2252 |
| 35K → 40K | 160* | 36 | +124 | #2252 | #2128 |
| 40K → Finish | 13 | 159 | -146 | #2128 | #2274 |
| TOTALS | 1048* | 675 | +373 |
* Includes athletes who did not complete a segment (DNF/DNQ).
Passing Charts
Passing Circle
Position Flow
Race Lanes
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Race managed by
U.S. Marine Corps Community Services (MCCS)
Race timed by
Timing Productions