Emma Chiu

Palo Alto, CA

Bib: 10627 F 27

0:00
0:00
/ mi
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Overall
#0 / 5177
Top 30%
Gender (Female)
#0 / 2293
Top 18%
Division (F25-29)
#0 / 585
Top 21%
Race Day Weather
56°/46°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2.13M
11:13/mi
23:54
→ flat
6.62M
9:05/mi
1:04:40
29978
7.12M
12:30/mi
1:10:55
27
10.65M
8:32/mi
1:41:02
127360
Finish· 13.11 mi
9:03/mi
2:03:18
244114
Course Elevation
10277 ft
×22story building
774 ft climb · 557 ft descent

The Course

Half Splits

1st Half· via 6.62M
1:04:409:46 /mi+9.3%
2nd Half
58:389:02 /mi✓ faster
Negative split — 9.3% faster in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
2.13M
23:5411:132.13 mi23:54
11:13
-
6.62M
1:04:409:464.49 mi40:46
9:05
-2:08
7.12M
1:10:559:580.50 mi6:15
12:30
+3:25
10.65M
1:41:029:293.53 mi30:07
8:32
-3:58
Finish(13.11 mi)
2:03:189:242.46 mi22:16
9:03
+0:31
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

8:32 /mi

Average Pace

9:24 /mi

Slowest Pace

12:30 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

1:33:09

76% of race

Time at Slower Pace

30:09

24% of race

Average Pace: 9:24 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2.13M2.13 mi121830589121830589
6.62M4.49 mi1509-291396-91112-231678462135
7.12M0.50 mi1519-10399-3117-51804504155
10.65M3.53 mi1457+62373+26111+61411361108
Finish(13.11 mi)2.46 mi1549-92413-40124-132008649185

Segment Performance Analysis

Start → 2.13M

0.0 - 2.1 mi

Top 24%
~flat
+6ft-3ft

Overall

1218

Females

305

F25-29

90

2.13M→6.62M

2.1 - 6.6 mi

Top 32%
×19story building
+299ft-78ft

Overall

1678

Females

462

F25-29

137

6.62M→7.12M

6.6 - 7.1 mi

Top 35%
×2story building
+27ft-0ft

Overall

1804

Females

504

F25-29

155

7.12M→10.65M

7.1 - 10.7 mi

Top 27%
×21story building
+127ft-360ft

Overall

1411

Females

361

F25-29

108

10.65M→Finish

10.7 - 13.1 mi

Top 39%
×17story building
+244ft-114ft

Overall

2008

Females

649

F25-29

185

Passing Analysis

Category:
Net Change
0
0 passed by0* passed
SegmentMovementRank
Start → 2.13M-#1218
2.13M6.62M
32635-291
#1218 #1509
6.62M7.12M
4636-10
#1509 #1519
7.12M10.65M
44106*+62
#1519 #1457
10.65MFinish
12331*-92
#1457 #1549
TOTALS
539208*-331
#1218 #1549

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Visualized

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Passing Circle

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Position Flow

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Race Lanes

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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events