Catherine Song
Bib: 16378•F
MA

⏱️ Race Timeline
The Course
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Half Splits
Checkpoint Splits
| Checkpoint | Distance | Time of Day | Time | Avg Pace | Segment Time | Segment Pace | Diff |
|---|---|---|---|---|---|---|---|
5K | 3.11 mi | 11:14:04 | 23:57 | 7:43 | 23:57 | 7:43 | - |
10K | 6.21 mi | 11:37:45 | 47:38 | 7:40 | 23:41 | 7:37 | -0:06 |
15K | 9.32 mi | 12:01:56 | 1:11:49 | 7:42 | 24:11 | 7:47 | +0:10 |
20K | 12.43 mi | 12:25:10 | 1:35:03 | 7:39 | 23:14 | 7:29 | -0:18 |
Half | 13.11 mi | 12:30:08 | 1:40:01 | 7:38 | 4:58 | 7:17 | -0:12 |
25K | 15.53 mi | 12:48:02 | 1:57:55 | 7:35 | 17:54 | 7:23 | +0:06 |
30K | 18.64 mi | 13:10:56 | 2:20:49 | 7:33 | 22:54 | 7:22 | -0:01 |
20M | 20.00 mi | 13:20:50 | 2:30:43 | 7:32 | 9:54 | 7:17 | -0:05 |
21M | 21.00 mi | 13:28:28 | 2:38:21 | 7:32 | 7:38 | 7:38 | +0:21 |
35K | 21.75 mi | 13:33:46 | 2:43:39 | 7:31 | 5:18 | 7:05 | -0:33 |
23M | 23.00 mi | 13:43:04 | 2:52:57 | 7:31 | 9:18 | 7:26 | +0:21 |
24M | 24.00 mi | 13:50:18 | 3:00:11 | 7:30 | 7:14 | 7:14 | -0:12 |
40K | 24.85 mi | 13:56:33 | 3:06:26 | 7:30 | 6:15 | 7:19 | +0:05 |
25.2M | 25.20 mi | 13:59:13 | 3:09:06 | 7:30 | 2:40 | 7:44 | +0:25 |
Finish | 26.22 mi | 14:06:27 | 3:16:20 | 7:30 | 7:14 | 7:06 | -0:38 |
Checkpoints & Pacing
📈Pace Line
Pace Progression
Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.
Fastest Pace
7:05 /mi
Average Pace
7:30 /mi
Slowest Pace
7:47 /mi
📊Segments
Segment Time Comparison
Time at Faster Pace
1:30:59
46% of race
Time at Steady Pace
1:45:21
54% of race
Time at Slower Pace
0:00
0% of race
Average Pace: 7:29 /mi
🎨Heatmap
Pace Heatmap
Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.
Click or hover over segments to see details
✨Sparklines
Checkpoint Splits with Pace Trends
Overall Pace Trend
| Checkpoint | Distance | Time of Day | Time | Avg Pace | Segment | Pace | Trend | Rank |
|---|---|---|---|---|---|---|---|---|
5K | 3.11 mi | 11:14:04 | 23:57 | 7:43 | 23:57 | 7:43 | #11529 | |
10K | 6.21 mi | 11:37:45 | 47:38 | 7:40 | 23:41 | 7:37 | #11485 | |
15K | 9.32 mi | 12:01:56 | 1:11:49 | 7:42 | 24:11 | 7:47 | #11835 | |
20K | 12.43 mi | 12:25:10 | 1:35:03 | 7:39 | 23:14 | 7:29 | #11093 | |
Half | 13.11 mi | 12:30:08 | 1:40:01 | 7:38 | 4:58 | 7:17 | #10969 | |
25K | 15.53 mi | 12:48:02 | 1:57:55 | 7:35 | 17:54 | 7:23 | #10416 | |
30K | 18.64 mi | 13:10:56 | 2:20:49 | 7:33 | 22:54 | 7:22 | #9625 | |
20M | 20.00 mi | 13:20:50 | 2:30:43 | 7:32 | 9:54 | 7:17 | #9242 | |
21M | 21.00 mi | 13:28:28 | 2:38:21 | 7:32 | 7:38 | 7:38 | #8964 | |
35K | 21.75 mi | 13:33:46 | 2:43:39 | 7:31 | 5:18 | 7:05 | #8833 | |
23M | 23.00 mi | 13:43:04 | 2:52:57 | 7:31 | 9:18 | 7:26 | #8617 | |
24M | 24.00 mi | 13:50:18 | 3:00:11 | 7:30 | 7:14 | 7:14 | #8454 | |
40K | 24.85 mi | 13:56:33 | 3:06:26 | 7:30 | 6:15 | 7:19 | #8316 | |
25.2M | 25.20 mi | 13:59:13 | 3:09:06 | 7:30 | 2:40 | 7:44 | #8250 | |
Finish | 26.22 mi | 14:06:27 | 3:16:20 | 7:30 | 7:14 | 7:06 | #8116 |
Checkpoint and Segment Rankings
| Checkpoint | Distance | Seg. Dist | Overall | Females | F18-39 | Seg. Overall | Seg. Females | Seg. F18-39 |
|---|---|---|---|---|---|---|---|---|
| 5K | 3.11 mi | 3.11 mi | 11529 | 2602 | 2602 | 12592(Top 47%) | 3227(Top 28%) | 3227(Top 66%) |
| 10K | 6.21 mi | 3.10 mi | 11485+44 | 2591+11 | 2591+11 | 11537(Top 43%) | 2613(Top 23%) | 2613(Top 54%) |
| 15K | 9.32 mi | 3.11 mi | 11835-350 | 2800-209 | 2800-209 | 12592(Top 47%) | 3227(Top 28%) | 3227(Top 66%) |
| 20K | 12.43 mi | 3.11 mi | 11093+742 | 2377+423 | 2377+423 | 9154(Top 34%) | 1546(Top 14%) | 1546(Top 32%) |
| Half | 13.11 mi | 0.68 mi | 10969+124 | 2316+61 | 2316+61 | 8504(Top 32%) | 1283(Top 11%) | 1283(Top 26%) |
| 25K | 15.53 mi | 2.42 mi | 10416+553 | 2053+263 | 2053+263 | 7895(Top 30%) | 1153(Top 10%) | 1153(Top 24%) |
| 30K | 18.64 mi | 3.11 mi | 9625+791 | 1723+330 | 1723+330 | 6439(Top 24%) | 749(Top 7%) | 749(Top 15%) |
| 20M | 20.00 mi | 1.36 mi | 9242+383 | 1611+112 | 1611+112 | 5590(Top 21%) | 603(Top 5%) | 603(Top 12%) |
| 21M | 21.00 mi | 1.00 mi | 8964+278 | 1517+94 | 1517+94 | 5313(Top 20%) | 622(Top 5%) | 622(Top 13%) |
| 35K | 21.75 mi | 0.75 mi | 8833+131 | 1467+50 | 1467+50 | 5871(Top 22%) | 734(Top 6%) | 734(Top 15%) |
| 23M | 23.00 mi | 1.25 mi | 8617+216 | 1414+53 | 1414+53 | 6054(Top 23%) | 837(Top 7%) | 837(Top 17%) |
| 24M | 24.00 mi | 1.00 mi | 8454+163 | 1374+40 | 1374+40 | 5981(Top 22%) | 889(Top 8%) | 889(Top 18%) |
| 40K | 24.85 mi | 0.85 mi | 8316+138 | 1341+33 | 1341+33 | 5561(Top 21%) | 837(Top 7%) | 837(Top 17%) |
| 25.2M | 25.20 mi | 0.35 mi | 8250+66 | 1331+10 | 1331+10 | 5142(Top 19%) | 787(Top 7%) | 787(Top 16%) |
| Finish | 26.22 mi | 1.02 mi | 8116+134 | 1296+35 | 1296+35 | 5844(Top 22%) | 1020(Top 9%) | 1020(Top 21%) |
Segment Performance Analysis
10K→15K
0.0 - 3.1 mi
Overall
12592
Females
3227
F18-39
3227
5K→10K
3.1 - 6.2 mi
Overall
11537
Females
2613
F18-39
2613
10K→15K
6.2 - 9.3 mi
Overall
12592
Females
3227
F18-39
3227
15K→20K
9.3 - 12.4 mi
Overall
9154
Females
1546
F18-39
1546
20K→Half
12.4 - 13.1 mi
Overall
8504
Females
1283
F18-39
1283
Half→25K
13.1 - 15.5 mi
Overall
7895
Females
1153
F18-39
1153
25K→30K
15.5 - 18.6 mi
Overall
6439
Females
749
F18-39
749
30K→20M
18.6 - 20.0 mi
Overall
5590
Females
603
F18-39
603
20M→21M
20.0 - 21.0 mi
Overall
5313
Females
622
F18-39
622
21M→35K
21.0 - 21.8 mi
Overall
5871
Females
734
F18-39
734
35K→23M
21.8 - 23.0 mi
Overall
6054
Females
837
F18-39
837
23M→24M
23.0 - 24.0 mi
Overall
5981
Females
889
F18-39
889
24M→40K
24.0 - 24.9 mi
Overall
5561
Females
837
F18-39
837
40K→25.2M
24.9 - 25.2 mi
Overall
5142
Females
787
F18-39
787
25.2M→Finish
25.2 - 26.2 mi
Overall
5844
Females
1020
F18-39
1020
Passing Analysis
| Segment | Athletes Passed | Passed By | Net Change | Start Rank | End Rank |
|---|---|---|---|---|---|
| Start → 5K | - | - | - | - | #11529 |
| 5K → 10K | 319 | 275 | +44 | #11529 | #11485 |
| 10K → 15K | 83 | 433 | -350 | #11485 | #11835 |
| 15K → 20K | 748 | 6 | +742 | #11835 | #11093 |
| 20K → Half | 124 | 0 | +124 | #11093 | #10969 |
| Half → 25K | 553 | 0 | +553 | #10969 | #10416 |
| 25K → 30K | 792* | 1 | +791 | #10416 | #9625 |
| 30K → 20M | 383 | 0 | +383 | #9625 | #9242 |
| 20M → 21M | 281 | 3 | +278 | #9242 | #8964 |
| 21M → 35K | 132 | 1 | +131 | #8964 | #8833 |
| 35K → 23M | 219 | 3 | +216 | #8833 | #8617 |
| 23M → 24M | 169 | 6 | +163 | #8617 | #8454 |
| 24M → 40K | 145 | 7 | +138 | #8454 | #8316 |
| 40K → 25.2M | 68 | 2 | +66 | #8316 | #8250 |
| 25.2M → Finish | 147 | 13 | +134 | #8250 | #8116 |
| TOTALS | 4163* | 750 | +3413 |
* Includes athletes who did not complete a segment (DNF/DNQ).
Passing Visuals
🔄Passing Circle
🌊Position Flow
🏃Race Lanes
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