Stacy Chang

Bib: 24405FAge: 29

San Jose, CA

0:00
0:00
/ mi
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Overall
#0 / 3840
Gender (Female)
#0 / 1760
Top 39%
Division (F25-29)
#0 / 495
Top 40%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
9292 ft
×24story building
548 ft climb · 587 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
9:55/mi
19:50
138680.7%
4M
9:23/mi
38:36
1631.4%
6M
12:21/mi
1:03:19
55830.3%
8M
7:48/mi
1:18:55
651510.8%
10M
10:57/mi
1:40:48
611741.1%
12M
10:57/mi
2:02:41
41530.1%
Finish· 13.11 mi
10:54/mi
2:14:46
→ flat

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:03:19
Pace10:33 /mi
2nd Half
Distance7.11 mi
Time1:11:27
Pace10:03 /mi
📊Positive Split: 12.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:00:0719:509:5519:50
9:55
-
4M
4.00 mi09:18:5338:369:3918:46
9:23
-0:32
6M
6.00 mi09:43:361:03:1910:3324:43
12:21
+2:58
8M
8.00 mi09:59:121:18:559:5215:36
7:48
-4:33
10M
10.00 mi10:21:051:40:4810:0521:53
10:57
+3:09
12M
12.00 mi10:42:582:02:4110:1321:53
10:57
0:00
Finish
13.11 mi10:55:032:14:4610:1712:05
10:54
-0:03

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

7:48 /mi

Average Pace

10:17 /mi

Slowest Pace

12:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

54:12

40% of race

Time at Steady Pace

55:51

41% of race

Time at Slower Pace

24:43

18% of race

Average Pace: 10:17 /mi

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

🎨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.

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

Click or hover over segments to see details

Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
2M
2.00 mi09:00:0719:509:5519:50
9:55
#1973
4M
4.00 mi09:18:5338:369:3918:46
9:23
#1915
6M
6.00 mi09:43:361:03:1910:3324:43
12:21
#1965
8M
8.00 mi09:59:121:18:559:5215:36
7:48
#1969
10M
10.00 mi10:21:051:40:4810:0521:53
10:57
#2007
12M
12.00 mi10:42:582:02:4110:1321:53
10:57
#1968
Finish
13.11 mi10:55:032:14:4610:1712:05
10:54
#1966
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi19736821871883(Top 49%)674(Top 38%)204(Top 41%)
4M4.00 mi2.00 mi1915+58652+30181+61914(Top 50%)655(Top 37%)186(Top 38%)
6M6.00 mi2.00 mi1965-50663-11184-32058(Top 54%)717(Top 41%)208(Top 42%)
8M8.00 mi2.00 mi1969-4672-9187-32077(Top 54%)725(Top 41%)213(Top 43%)
10M10.00 mi2.00 mi2007-38691-19200-132170(Top 57%)792(Top 45%)235(Top 47%)
12M12.00 mi2.00 mi1968+39683+8197+31883(Top 49%)674(Top 38%)204(Top 41%)
Finish13.11 mi1.11 mi1966+2682+11972095(Top 55%)794(Top 45%)237(Top 48%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 49%
×9story building
+138ft-68ft

Overall

1883

Females

674

F25-29

205

2M→4M

2.0 - 4.0 mi

Top 50%
×13story building
+163ft-19ft

Overall

1914

Females

655

F25-29

186

4M→6M

4.0 - 6.0 mi

Top 54%
×4story building
+55ft-83ft

Overall

2058

Females

717

F25-29

209

6M→8M

6.0 - 8.0 mi

Top 54%
×10story building
+65ft-151ft

Overall

2077

Females

725

F25-29

213

8M→10M

8.0 - 10.0 mi

Top 57%
×10story building
+61ft-174ft

Overall

2170

Females

792

F25-29

236

10M→12M

10.0 - 12.0 mi

Top 49%
×3story building
+41ft-53ft

Overall

1883

Females

674

F25-29

205

12M→Finish

12.0 - 13.1 mi

Top 55%
×1human
+6ft-6ft

Overall

2095

Females

794

F25-29

237

Passing Analysis

Category:
Athletes Passed
296*
Passed By
289
Net Change
+7
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1973
2M4M11355+58#1973#1915
4M6M2575-50#1915#1965
6M8M3539-4#1965#1969
8M10M38*76-38#1969#2007
10M12M6425+39#2007#1968
12MFinish21*19+2#1968#1966
TOTALS296*289+7

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

📊

Passing Visuals

Category:
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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