Jeff Mierczynski
Bib: 2994 β’M β’Age: 64
Elk grove, CA

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 | 07:53:28 | 34:04 | 10:58 | 34:04 | 10:58 | - |
10K | 6.21 mi | 08:26:44 | 1:07:20 | 10:51 | 33:16 | 10:43 | -0:15 |
15K | 9.32 mi | 09:01:52 | 1:42:28 | 11:00 | 35:08 | 11:19 | +0:36 |
Half | 13.10 mi | 09:44:41 | 2:25:17 | 11:06 | 42:49 | 11:21 | +0:02 |
25K | 15.53 mi | 10:15:34 | 2:56:10 | 11:21 | 30:53 | 12:41 | +1:20 |
30K | 18.64 mi | 10:52:49 | 3:33:25 | 11:27 | 37:15 | 12:00 | -0:41 |
35K | 21.75 mi | 11:33:22 | 4:13:58 | 11:41 | 40:33 | 13:04 | +1:04 |
40K | 24.85 mi | 12:16:13 | 4:56:49 | 11:57 | 42:51 | 13:48 | +0:44 |
Finish | 26.22 mi | 12:33:25 | 5:14:01 | 12:00 | 17:12 | 12:37 | -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
10:43 /mi
Average Pace
11:59 /mi
Slowest Pace
13:48 /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
2:25:17
46% of race
Time at Steady Pace
37:15
12% of race
Time at Slower Pace
2:11:29
42% of race
Average Pace: 11:59 /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 | 07:53:28 | 34:04 | 10:58 | 34:04 | 10:58 | #8234 | |
10K | 6.21 mi | 08:26:44 | 1:07:20 | 10:51 | 33:16 | 10:43 | #8187 | |
15K | 9.32 mi | 09:01:52 | 1:42:28 | 11:00 | 35:08 | 11:19 | #8172 | |
Half | 13.10 mi | 09:44:41 | 2:25:17 | 11:06 | 42:49 | 11:21 | #8142 | |
25K | 15.53 mi | 10:15:34 | 2:56:10 | 11:21 | 30:53 | 12:41 | #8179 | |
30K | 18.64 mi | 10:52:49 | 3:33:25 | 11:27 | 37:15 | 12:00 | #8089 | |
35K | 21.75 mi | 11:33:22 | 4:13:58 | 11:41 | 40:33 | 13:04 | #8070 | |
40K | 24.85 mi | 12:16:13 | 4:56:49 | 11:57 | 42:51 | 13:48 | #8084 | |
Finish | 26.22 mi | 12:33:25 | 5:14:01 | 12:00 | 17:12 | 12:37 | #8080 |
Rankings
Your position at each checkpoint and how you ranked in each segment
Checkpoint and Segment Rankings
| Checkpoint | Distance | Seg. Dist | Overall | Males | M60-64 | Seg. Overall | Seg. Males | Seg. M60-64 |
|---|---|---|---|---|---|---|---|---|
| 5K | 3.11 mi | 3.11 mi | 8234 | 5135 | 153 | 8172(Top 89%) | 5107(Top 93%) | 152(Top 84%) |
| 10K | 6.21 mi | 3.10 mi | 8187+47 | 5125+10 | 150+3 | 8120(Top 88%) | 5089(Top 92%) | 146(Top 81%) |
| 15K | 9.32 mi | 3.11 mi | 8172+15 | 5111+14 | 150 | 8172(Top 89%) | 5107(Top 93%) | 152(Top 84%) |
| Half | 13.10 mi | 3.78 mi | 8142+30 | 5097+14 | 151-1 | 8044(Top 88%) | 5034(Top 91%) | 147(Top 82%) |
| 25K | 15.53 mi | 2.43 mi | 8179-37 | 5105-8 | 152-1 | 8325(Top 91%) | 5130(Top 93%) | 153(Top 85%) |
| 30K | 18.64 mi | 3.11 mi | 8089+90 | 5041+64 | 150+2 | 7720(Top 84%) | 4797(Top 87%) | 140(Top 78%) |
| 35K | 21.75 mi | 3.11 mi | 8070+19 | 5016+25 | 150 | 7840(Top 85%) | 4787(Top 87%) | 144(Top 80%) |
| 40K | 24.85 mi | 3.10 mi | 8084-14 | 5004+12 | 149+1 | 8116(Top 88%) | 4888(Top 89%) | 144(Top 80%) |
| Finish | 26.22 mi | 1.37 mi | 8080+4 | 4996+8 | 148+1 | 7953(Top 87%) | 4799(Top 87%) | 137(Top 76%) |
Segment Performance Analysis
10Kβ15K
0.0 - 3.1 mi
Overall
8172
Males
5107
M60-64
152
5Kβ10K
3.1 - 6.2 mi
Overall
8120
Males
5089
M60-64
146
10Kβ15K
6.2 - 9.3 mi
Overall
8172
Males
5107
M60-64
152
15KβHalf
9.3 - 13.1 mi
Overall
8044
Males
5034
M60-64
147
Halfβ25K
13.1 - 15.5 mi
Overall
8325
Males
5130
M60-64
153
25Kβ30K
15.5 - 18.6 mi
Overall
7720
Males
4797
M60-64
140
30Kβ35K
18.6 - 21.8 mi
Overall
7840
Males
4787
M60-64
144
35Kβ40K
21.8 - 24.9 mi
Overall
8116
Males
4888
M60-64
144
40KβFinish
24.9 - 26.2 mi
Overall
7953
Males
4799
M60-64
137
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 | - | - | - | - | #8234 |
| 5K β 10K | 74 | 27 | +47 | #8234 | #8187 |
| 10K β 15K | 51 | 36 | +15 | #8187 | #8172 |
| 15K β Half | 75 | 45 | +30 | #8172 | #8142 |
| Half β 25K | 42 | 79 | -37 | #8142 | #8179 |
| 25K β 30K | 107 | 17 | +90 | #8179 | #8089 |
| 30K β 35K | 65 | 46 | +19 | #8089 | #8070 |
| 35K β 40K | 27 | 41 | -14 | #8070 | #8084 |
| 40K β Finish | 16 | 12 | +4 | #8084 | #8080 |
| TOTALS | 457 | 303 | +154 |
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
Download and share your official race completion certificate
Your certificate is generated on-demand and can be shared on social media or saved for your records
Activity Data
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.gpx files up to 10MB
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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Contact Race SupportQuick Links
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