Jen Ziswasser- Shulkin
Bib: 6499 β’F β’Age: 39
Boston, MA

Race Timeline and Course Information
Your journey through the course with elevation, pacing, and checkpoint details
β±οΈ Race Timeline
Watch your race unfold from start to finish
Splits & Pacing
Detailed breakdown of your race performance at each timing point
Half Splits
Checkpoint Splits
| Checkpoint | Distance | Time of Day | Time | Avg Pace | Segment Time | Segment Pace | Diff |
|---|---|---|---|---|---|---|---|
5K | 3.11 mi | 07:39:20 | 24:36 | 7:56 | 24:36 | 7:56 | - |
10K | 6.21 mi | 08:03:44 | 49:00 | 7:54 | 24:24 | 7:52 | -0:04 |
15K | 9.32 mi | 08:28:56 | 1:14:12 | 7:58 | 25:12 | 8:07 | +0:15 |
Half | 13.10 mi | 08:59:27 | 1:44:43 | 8:00 | 30:31 | 8:05 | -0:02 |
25K | 15.53 mi | 09:20:46 | 2:06:02 | 8:07 | 21:19 | 8:45 | +0:40 |
30K | 18.64 mi | 09:50:14 | 2:35:30 | 8:21 | 29:28 | 9:30 | +0:45 |
35K | 21.75 mi | 10:21:55 | 3:07:11 | 8:37 | 31:41 | 10:12 | +0:42 |
40K | 24.85 mi | 10:53:47 | 3:39:03 | 8:49 | 31:52 | 10:16 | +0:04 |
Finish | 26.22 mi | 11:06:09 | 3:51:25 | 8:50 | 12:22 | 9:05 | -1:11 |
Checkpoint Splits Visualizations
Explore your race data through different visual perspectives. Scroll to discover each visualization.
πPace 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
7:52 /mi
Average Pace
8:50 /mi
Slowest Pace
10:16 /mi
πSegments
Segment Time Comparison
Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.
Time at Faster Pace
1:44:43
45% of race
Time at Steady Pace
33:41
15% of race
Time at Slower Pace
1:33:01
40% of race
Average Pace: 8:50 /mi
π¨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
β¨Sparklines
Checkpoint Splits with Pace Trends
Enhanced split table showing pace trends through mini sparkline visualizations.
Overall Pace Trend
| Checkpoint | Distance | Time of Day | Time | Avg Pace | Segment | Pace | Trend | Rank |
|---|---|---|---|---|---|---|---|---|
5K | 3.11 mi | 07:39:20 | 24:36 | 7:56 | 24:36 | 7:56 | #3857 | |
10K | 6.21 mi | 08:03:44 | 49:00 | 7:54 | 24:24 | 7:52 | #3890 | |
15K | 9.32 mi | 08:28:56 | 1:14:12 | 7:58 | 25:12 | 8:07 | #3932 | |
Half | 13.10 mi | 08:59:27 | 1:44:43 | 8:00 | 30:31 | 8:05 | #3940 | |
25K | 15.53 mi | 09:20:46 | 2:06:02 | 8:07 | 21:19 | 8:45 | #4086 | |
30K | 18.64 mi | 09:50:14 | 2:35:30 | 8:21 | 29:28 | 9:30 | #4328 | |
35K | 21.75 mi | 10:21:55 | 3:07:11 | 8:37 | 31:41 | 10:12 | #4593 | |
40K | 24.85 mi | 10:53:47 | 3:39:03 | 8:49 | 31:52 | 10:16 | #4741 | |
Finish | 26.22 mi | 11:06:09 | 3:51:25 | 8:50 | 12:22 | 9:05 | #4703 |
Rankings
Your position at each checkpoint and how you ranked in each segment
Checkpoint and Segment Rankings
| Checkpoint | Distance | Seg. Dist | Overall | Females | F35-39 | Seg. Overall | Seg. Females | Seg. F35-39 |
|---|---|---|---|---|---|---|---|---|
| 5K | 3.11 mi | 3.11 mi | 3857 | 1037 | 185 | 4020(Top 44%) | 1104(Top 30%) | 202(Top 36%) |
| 10K | 6.21 mi | 3.10 mi | 3890-33 | 1041-4 | 188-3 | 3931(Top 43%) | 1050(Top 29%) | 190(Top 34%) |
| 15K | 9.32 mi | 3.11 mi | 3932-42 | 1065-24 | 195-7 | 4020(Top 44%) | 1104(Top 30%) | 202(Top 36%) |
| Half | 13.10 mi | 3.78 mi | 3940-8 | 1073-8 | 194+1 | 4005(Top 44%) | 1103(Top 30%) | 201(Top 36%) |
| 25K | 15.53 mi | 2.43 mi | 4086-146 | 1127-54 | 209-15 | 4798(Top 52%) | 1478(Top 41%) | 258(Top 46%) |
| 30K | 18.64 mi | 3.11 mi | 4328-242 | 1261-134 | 233-24 | 5546(Top 60%) | 1866(Top 51%) | 319(Top 56%) |
| 35K | 21.75 mi | 3.11 mi | 4593-265 | 1402-141 | 255-22 | 5640(Top 61%) | 1988(Top 55%) | 348(Top 61%) |
| 40K | 24.85 mi | 3.10 mi | 4741-148 | 1505-103 | 266-11 | 5362(Top 58%) | 1944(Top 53%) | 337(Top 60%) |
| Finish | 26.22 mi | 1.37 mi | 4703+38 | 1496+9 | 264+2 | 4340(Top 47%) | 1531(Top 42%) | 265(Top 47%) |
Segment Performance Analysis
10Kβ15K
0.0 - 3.1 mi
Overall
4020
Females
1104
F35-39
202
5Kβ10K
3.1 - 6.2 mi
Overall
3931
Females
1050
F35-39
190
10Kβ15K
6.2 - 9.3 mi
Overall
4020
Females
1104
F35-39
202
15KβHalf
9.3 - 13.1 mi
Overall
4005
Females
1103
F35-39
201
Halfβ25K
13.1 - 15.5 mi
Overall
4798
Females
1478
F35-39
258
25Kβ30K
15.5 - 18.6 mi
Overall
5546
Females
1866
F35-39
319
30Kβ35K
18.6 - 21.8 mi
Overall
5640
Females
1988
F35-39
348
35Kβ40K
21.8 - 24.9 mi
Overall
5362
Females
1944
F35-39
337
40KβFinish
24.9 - 26.2 mi
Overall
4340
Females
1531
F35-39
265
Passing
Athletes you passed and who passed you throughout the race
Passing Analysis
| Segment | Athletes Passed | Passed By | Net Change | Start Rank | End Rank |
|---|---|---|---|---|---|
| Start β 5K | - | - | - | - | #3857 |
| 5K β 10K | 54 | 87 | -33 | #3857 | #3890 |
| 10K β 15K | 40 | 82 | -42 | #3890 | #3932 |
| 15K β Half | 47 | 55 | -8 | #3932 | #3940 |
| Half β 25K | 33 | 179 | -146 | #3940 | #4086 |
| 25K β 30K | 25 | 200 | -242 | #4086 | #4328 |
| 30K β 35K | 27 | 200 | -265 | #4328 | #4593 |
| 35K β 40K | 46 | 194 | -148 | #4593 | #4741 |
| 40K β Finish | 54 | 16 | +38 | #4741 | #4703 |
| TOTALS | 326 | 1013 | -846 |
Passing Analysis Visualizations
Explore your passing analysis through 5 different visualizations. Scroll to discover each one.
πPosition Graph
π¨Heatmap Timeline
πPassing Circle
πPosition Flow
πRace Lanes
Qualifying & Age Grade
See how your performance stacks up against qualifying standards
Olympic Trials Qualifying analysis available
Finisher Certificate
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Your certificate is generated on-demand and can be shared on social media or saved for your records
Activity Data
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Export & Support
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Export Track Data
Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.
Questions or issues regarding timing data?
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