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SF MARATHON 2025

I-Lei Chuang

Bib: 778•F•Age: 57

Redwood City, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 6545
Gender (Female)
#0 / 1878
Masters (Masters Women)
#0 / 470
Division (F55-59)
#0 / 63
Race Day Weather
56°/46°F
overcast clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
1.81 Miles
18:53
Rank: #4990
Start → 1.81 Miles
18:53 | 10:26/mi
5.55 Miles
1:00:46
Rank: #5349 (-359)
1.81 Miles → 5.55 Miles
41:53 | 11:12/mi
6.52 Miles
1:11:58
Rank: #5341 (+8)
5.55 Miles → 6.52 Miles
11:12 | 11:33/mi
10.87 Miles
2:04:17
Rank: #5585 (-244)
6.52 Miles → 10.87 Miles
52:19 | 12:02/mi
Garmin Hill Challenge· 11.38 mi
2:12:52
Rank: #5629 (-44)
10.87 Miles → Garmin Hill Challenge
8:35 | 16:51/mi
14.95 Miles
2:52:15
Rank: #5491 (+138)
Garmin Hill Challenge → 14.95 Miles
39:23 | 11:02/mi
18 Miles
3:38:53
Rank: #5747 (-256)
14.95 Miles → 18 Miles
46:38 | 15:17/mi
25 Miles
5:06:15
Rank: #5491 (+256)
18 Miles → 25 Miles
1:27:22 | 12:29/mi
Finish· 26.22 mi
5:20:00
Rank: #5405 (+86)
25 Miles → Finish
13:45 | 11:17/mi

Course Map & Elevation

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Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.81 Miles
1.81 mi05:39:5818:5310:2618:53
10:26
-
5.55 Miles
5.55 mi06:21:511:00:4610:5741:53
11:12
+0:46
6.52 Miles
6.52 mi06:33:031:11:5811:0211:12
11:33
+0:21
10.87 Miles
10.87 mi07:25:222:04:1711:2652:19
12:02
+0:29
Garmin Hill Challenge
11.38 mi07:33:572:12:5211:418:35
16:51
+4:49
14.95 Miles
14.95 mi08:13:202:52:1511:3139:23
11:02
-5:49
18 Miles
18.00 mi08:59:583:38:5312:1046:38
15:17
+4:15
25 Miles
25.00 mi10:27:205:06:1512:151:27:22
12:29
-2:48
Finish
26.22 mi10:41:055:20:0012:1313:45
11:17
-1:12

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

10:26 /mi

Average Pace

12:13 /mi

Slowest Pace

16:51 /mi

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Fastest
Middle
Slowest
Average

📊Segments

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

18:53

6% of race

Time at Steady Pace

4:05:54

77% of race

Time at Slower Pace

55:13

17% of race

Average Pace: 12:12 /mi

Loading chart...
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...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
1.81 Miles
1.81 mi05:39:5818:5310:2618:53
10:26
#4990
5.55 Miles
5.55 mi06:21:511:00:4610:5741:53
11:12
#5349
6.52 Miles
6.52 mi06:33:031:11:5811:0211:12
11:33
#5341
10.87 Miles
10.87 mi07:25:222:04:1711:2652:19
12:02
#5585
Garmin Hill Challenge
11.38 mi07:33:572:12:5211:418:35
16:51
#5629
14.95 Miles
14.95 mi08:13:202:52:1511:3139:23
11:02
#5491
18 Miles
18.00 mi08:59:583:38:5312:1046:38
15:17
#5747
25 Miles
25.00 mi10:27:205:06:1512:151:27:22
12:29
#5491
Finish
26.22 mi10:41:055:20:0012:1313:45
11:17
#5405
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
1.81 Miles1.81 mi1.81 mi49901211384990(Top 76%)1211(Top 64%)38(Top 60%)
5.55 Miles5.55 mi3.74 mi5349-3591325-11441-35485(Top 84%)1389(Top 74%)43(Top 68%)
6.52 Miles6.52 mi0.97 mi5341+81321+440+15206(Top 80%)1280(Top 68%)36(Top 57%)
10.87 Miles10.87 mi4.35 mi5585-2441432-11146-65870(Top 90%)1579(Top 84%)49(Top 78%)
Garmin Hill Challenge11.38 mi0.51 mi5629-441458-26465836(Top 89%)1551(Top 83%)43(Top 68%)
14.95 Miles14.95 mi3.57 mi5491+1381409+4941+55405(Top 83%)1393(Top 74%)40(Top 63%)
18 Miles18.00 mi3.05 mi5747-2561528-11946-56258(Top 96%)1782(Top 95%)53(Top 84%)
25 Miles25.00 mi7.00 mi5491+2561457+7145+14783(Top 73%)1279(Top 68%)39(Top 62%)
Finish26.22 mi1.22 mi5405+861432+2543+24012(Top 61%)1024(Top 55%)24(Top 38%)

Segment Performance Analysis

Start → 1.81 Miles

0.0 - 1.8 mi

Top 76%
×1human
+6ft-10ft

Overall

4990

Females

1211

F55-59

38

1.81 Miles→5.55 Miles

1.8 - 5.5 mi

Top 84%
×6stories
+97ft-86ft

Overall

5485

Females

1389

F55-59

43

5.55 Miles→6.52 Miles

5.5 - 6.5 mi

Top 80%
×15stories
+178ft-5ft

Overall

5206

Females

1280

F55-59

36

6.52 Miles→10.87 Miles

6.5 - 10.9 mi

Top 90%
×20stories
+201ft-318ft

Overall

5870

Females

1579

F55-59

49

10.87 Miles→Garmin Hill Challenge

10.9 - 11.4 mi

Top 89%
×11stories
+134ft-79ft

Overall

5836

Females

1551

F55-59

43

Garmin Hill Challenge→14.95 Miles

11.4 - 14.9 mi

Top 83%
×17stories
+251ft-225ft

Overall

5405

Females

1393

F55-59

40

14.95 Miles→18 Miles

14.9 - 18.0 mi

Top 96%
×12stories
+165ft-60ft

Overall

6258

Females

1782

F55-59

53

18 Miles→25 Miles

18.0 - 25.0 mi

Top 73%
×22stories
+142ft-378ft

Overall

4783

Females

1279

F55-59

39

25 Miles→Finish

25.0 - 26.2 mi

Top 61%
~flat
+2ft-0ft

Overall

4012

Females

1024

F55-59

24

Passing Analysis

Category:
Athletes Passed
797*
Passed By
1212
Net Change
-415
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.81 Miles----#4990
1.81 Miles → 5.55 Miles120479-359#4990#5349
5.55 Miles → 6.52 Miles5547+8#5349#5341
6.52 Miles → 10.87 Miles44*288-244#5341#5585
10.87 Miles → Garmin Hill Challenge1054-44#5585#5629
Garmin Hill Challenge → 14.95 Miles174*36+138#5629#5491
14.95 Miles → 18 Miles25*281-256#5491#5747
18 Miles → 25 Miles281*25+256#5747#5491
25 Miles → Finish88*2+86#5491#5405
TOTALS797*1212-415

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

📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

The San Francisco Marathon

The San Francisco Marathon