Chikako Nakazawa
Tokyo, Suginami-ku
Bib: 247 F 60

⏱️ Race Timeline
The Course
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A one-of-a-kind AI Race Performance Report that reads your race like a coach. A plain-English story of how you raced, where you surged and faded, and what it all means. Emailed to you, free.
Half Splits
Checkpoint Splits
| Checkpoint | Distance | Time of Day | Time | Avg Pace | Segment Time | Segment Pace | Diff |
|---|---|---|---|---|---|---|---|
6.55 Miles | 6.55 mi | 07:30:02 | 1:26:48 | 13:16 | 1:26:48 | 13:16 | - |
HALF | 13.11 mi | 08:56:55 | 2:53:41 | 13:15 | 1:26:53 | 13:15 | -0:01 |
22.25 Miles | 22.25 mi | 11:07:00 | 5:03:46 | 13:40 | 2:10:05 | 14:14 | +0:59 |
24.15 Mile | 24.15 mi | 11:33:11 | 5:29:58 | 13:40 | 26:11 | 13:47 | -0:27 |
FINISH | 26.22 mi | 11:56:16 | 5:53:03 | 13:29 | 23:05 | 11:10 | -2:37 |
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
11:10 /mi
Average Pace
13:28 /mi
Slowest Pace
14:14 /mi
📊Segments
Segment Time Comparison
Time at Faster Pace
23:05
7% of race
Time at Steady Pace
3:19:52
57% of race
Time at Slower Pace
2:10:05
37% of race
Average Pace: 13:28 /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 |
|---|---|---|---|---|---|---|---|---|
6.55 Miles | 6.55 mi | 07:30:02 | 1:26:48 | 13:16 | 1:26:48 | 13:16 | #289 | |
HALF | 13.11 mi | 08:56:55 | 2:53:41 | 13:15 | 1:26:53 | 13:15 | #267 | |
22.25 Miles | 22.25 mi | 11:07:00 | 5:03:46 | 13:40 | 2:10:05 | 14:14 | #265 | |
24.15 Mile | 24.15 mi | 11:33:11 | 5:29:58 | 13:40 | 26:11 | 13:47 | #257 | |
FINISH | 26.22 mi | 11:56:16 | 5:53:03 | 13:29 | 23:05 | 11:10 | #251 |
Checkpoint and Segment Rankings
| Checkpoint | Distance | Seg. Dist | Overall | Females | F60-64 | Seg. Overall | Seg. Females | Seg. F60-64 |
|---|---|---|---|---|---|---|---|---|
| 6.55 Miles | 6.55 mi | 6.55 mi | 289 | 104 | 2 | 289(Top 90%) | 104(Top 84%) | 2(Top 33%) |
| HALF | 13.11 mi | 6.56 mi | 267+22 | 96+8 | 1+1 | 264(Top 83%) | 96(Top 77%) | 1(Top 17%) |
| 22.25 Miles | 22.25 mi | 9.14 mi | 265+2 | 96 | 1 | 237(Top 74%) | 84(Top 68%) | 1(Top 17%) |
| 24.15 Mile | 24.15 mi | 1.90 mi | 257+8 | 92+4 | 1 | 208(Top 65%) | 75(Top 60%) | 1(Top 17%) |
| FINISH | 26.22 mi | 2.07 mi | 251+6 | 88+4 | 1 | 187(Top 58%) | 67(Top 54%) | 1(Top 17%) |
Segment Performance Analysis
Start → 6.55 Miles
0.0 - 6.5 mi
Overall
289
Females
104
F60-64
2
6.55 Miles→HALF
6.5 - 13.1 mi
Overall
264
Females
96
F60-64
1
HALF→22.25 Miles
13.1 - 22.3 mi
Overall
237
Females
84
F60-64
1
22.25 Miles→24.15 Mile
22.3 - 24.1 mi
Overall
208
Females
75
F60-64
1
24.15 Mile→FINISH
24.1 - 26.2 mi
Overall
187
Females
67
F60-64
1
Passing Analysis
| Segment | Athletes Passed | Passed By | Net Change | Start Rank | End Rank |
|---|---|---|---|---|---|
| Start → 6.55 Miles | - | - | - | - | #289 |
| 6.55 Miles → HALF | 23 | 1 | +22 | #289 | #267 |
| HALF → 22.25 Miles | 16 | 14 | +2 | #267 | #265 |
| 22.25 Miles → 24.15 Mile | 8 | 0 | +8 | #265 | #257 |
| 24.15 Mile → FINISH | 6 | 0 | +6 | #257 | #251 |
| TOTALS | 53 | 15 | +38 |
Passing Visuals
🔄Passing Circle
🌊Position Flow
🏃Race Lanes
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NYC Marathon Qualifying analysis available
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