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SF MARATHON 2026

I-Lei Chuang

Bib: 7856•F•Age: 58

Redwood City, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 7166
Gender (Female)
#0 / 2086
Masters (Masters Women)
#0 / 458
Division (F55-59)
#0 / 57
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
2M
20:48
Rank: #4923
Start → 2M
20:48 | 10:24/mi
4M
41:33
Rank: #4780 (+143)
2M → 4M
20:45 | 10:23/mi
6M
1:03:27
Rank: #4897 (-117)
4M → 6M
21:54 | 10:57/mi
8M
1:24:18
Rank: #4888 (+9)
6M → 8M
20:51 | 10:25/mi
9.6M
1:43:35
Rank: #4986 (-98)
8M → 9.6M
19:17 | 12:03/mi
10M
1:46:39
Rank: #4988 (-2)
9.6M → 10M
3:04 | 7:41/mi
10.5M
1:53:47
Rank: #4935 (+53)
10M → 10.5M
7:08 | 14:16/mi
12M
2:14:01
Rank: #5399 (-464)
10.5M → 12M
20:14 | 13:29/mi
14M
2:38:27
Rank: #5383 (+16)
12M → 14M
24:26 | 12:13/mi
16M
2:58:39
Rank: #5289 (+94)
14M → 16M
20:12 | 10:06/mi
18M
3:29:23
Rank: #5611 (-322)
16M → 18M
30:44 | 15:22/mi
20M
3:53:45
Rank: #5554 (+57)
18M → 20M
24:22 | 12:11/mi
22M
4:18:07
Rank: #5556 (-2)
20M → 22M
24:22 | 12:11/mi
24M
4:44:43
Rank: #5508 (+48)
22M → 24M
26:36 | 13:18/mi
Finish· 26.22 mi
5:12:54
Rank: #5469 (+39)
24M → Finish
28:11 | 12:42/mi

The Course

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Half Splits

1st Half· via 14M
Distance14.00 mi
Time2:38:27
Pace11:19 /mi
2nd Half✓ Faster
Distance12.22 mi
Time2:34:27
Pace12:38 /mi
📊Negative Split: 2.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi05:49:0520:4810:2420:48
10:24
-
4M
4.00 mi06:09:5041:3310:2320:45
10:23
-0:01
6M
6.00 mi06:31:441:03:2710:3521:54
10:57
+0:34
8M
8.00 mi06:52:351:24:1810:3220:51
10:25
-0:32
9.6M
9.60 mi07:11:521:43:3510:4719:17
12:03
+1:38
10M
10.00 mi07:14:561:46:3910:403:04
7:41
-4:22
10.5M
10.50 mi07:22:041:53:4710:507:08
14:16
+6:35
12M
12.00 mi07:42:182:14:0111:1020:14
13:29
-0:47
14M
14.00 mi08:06:442:38:2711:1924:26
12:13
-1:16
16M
16.00 mi08:26:562:58:3911:1020:12
10:06
-2:07
18M
18.00 mi08:57:403:29:2311:3830:44
15:22
+5:16
20M
20.00 mi09:22:023:53:4511:4124:22
12:11
-3:11
22M
22.00 mi09:46:244:18:0711:4424:22
12:11
0:00
24M
24.00 mi10:13:004:44:4311:5226:36
13:18
+1:07
Finish
26.22 mi10:41:115:12:5411:5728:11
12:42
-0:36

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

7:41 /mi

Average Pace

11:57 /mi

Slowest Pace

15:22 /mi

Loading chart...
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

1:47:34

34% of race

Time at Steady Pace

2:00:38

39% of race

Time at Slower Pace

1:24:42

27% of race

Average Pace: 11:56 /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
2M
2.00 mi05:49:0520:4810:2420:48
10:24
#4923
4M
4.00 mi06:09:5041:3310:2320:45
10:23
#4780
6M
6.00 mi06:31:441:03:2710:3521:54
10:57
#4897
8M
8.00 mi06:52:351:24:1810:3220:51
10:25
#4888
9.6M
9.60 mi07:11:521:43:3510:4719:17
12:03
#4986
10M
10.00 mi07:14:561:46:3910:403:04
7:41
#4988
10.5M
10.50 mi07:22:041:53:4710:507:08
14:16
#4935
12M
12.00 mi07:42:182:14:0111:1020:14
13:29
#5399
14M
14.00 mi08:06:442:38:2711:1924:26
12:13
#5383
16M
16.00 mi08:26:562:58:3911:1020:12
10:06
#5289
18M
18.00 mi08:57:403:29:2311:3830:44
15:22
#5611
20M
20.00 mi09:22:023:53:4511:4124:22
12:11
#5554
22M
22.00 mi09:46:244:18:0711:4424:22
12:11
#5556
24M
24.00 mi10:13:004:44:4311:5226:36
13:18
#5508
Finish
26.22 mi10:41:115:12:5411:5728:11
12:42
#5469
Faster pace
Steady pace
Slower pace
Garmin Challenge
Featured Segment

Garmin Challenge

The climb, presented by Garmin

Top 65%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:12

Segment Time

11:20/mi

Pace

0.90 mi

Distance

Overall

4646

Women

1101

Division

22

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
2M2.00 mi2.00 mi49231176246789(Top 95%)1908(Top 91%)49(Top 86%)
4M4.00 mi2.00 mi4780+1431116+6020+44651(Top 65%)1067(Top 51%)20(Top 35%)
6M6.00 mi2.00 mi4897-1171160-4422-25262(Top 73%)1302(Top 62%)24(Top 42%)
8M8.00 mi2.00 mi4888+91149+1121+14882(Top 68%)1145(Top 55%)18(Top 32%)
9.6M9.60 mi1.60 mi4986-981194-4522-15617(Top 78%)1450(Top 70%)29(Top 51%)
10M10.00 mi0.40 mi4988-21195-121+15309(Top 74%)1333(Top 64%)28(Top 49%)
10.5M10.50 mi0.50 mi4935+531174+2120+14515(Top 63%)1059(Top 51%)20(Top 35%)
12M12.00 mi1.50 mi5399-4641346-17224-46789(Top 95%)1908(Top 91%)49(Top 86%)
14M14.00 mi2.00 mi5383+161347-123+15334(Top 74%)1347(Top 65%)27(Top 47%)
16M16.00 mi2.00 mi5289+941328+1921+24758(Top 66%)1170(Top 56%)24(Top 42%)
18M18.00 mi2.00 mi5611-3221448-12029-86611(Top 92%)1895(Top 91%)49(Top 86%)
20M20.00 mi2.00 mi5554+571437+1130-15010(Top 70%)1359(Top 65%)30(Top 53%)
22M22.00 mi2.00 mi5556-21455-1831-15421(Top 76%)1538(Top 74%)35(Top 61%)
24M24.00 mi2.00 mi5508+481446+9315053(Top 71%)1423(Top 68%)29(Top 51%)
Finish26.22 mi2.22 mi5469+391441+5315130(Top 72%)1431(Top 69%)32(Top 56%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 95%
×1human
+6ft-11ft

Overall

6789

Females

1908

F55-59

49

2M→4M

2.0 - 4.0 mi

Top 65%
×4stories
+75ft-70ft

Overall

4651

Females

1067

F55-59

20

4M→6M

4.0 - 6.0 mi

Top 73%
×5stories
+71ft-18ft

Overall

5262

Females

1302

F55-59

24

6M→8M

6.0 - 8.0 mi

Top 68%
×9stories
+106ft-21ft

Overall

4882

Females

1145

F55-59

18

8M→9.6M

8.0 - 9.6 mi

Top 78%
×13stories
+117ft-177ft

Overall

5617

Females

1450

F55-59

29

9.6M→10M

9.6 - 10.0 mi

Top 74%
×1story
+17ft-12ft

Overall

5309

Females

1333

F55-59

28

10M→10.5M

10.0 - 10.5 mi

Top 63%
×9stories
+0ft-102ft

Overall

4515

Females

1059

F55-59

20

10.5M→12M

10.5 - 12.0 mi

Top 95%
×18stories
+304ft-125ft

Overall

6789

Females

1908

F55-59

49

12M→14M

12.0 - 14.0 mi

Top 74%
×9stories
+99ft-125ft

Overall

5334

Females

1347

F55-59

27

14M→16M

14.0 - 16.0 mi

Top 66%
×9stories
+124ft-78ft

Overall

4758

Females

1170

F55-59

24

16M→18M

16.0 - 18.0 mi

Top 92%
×8stories
+106ft-45ft

Overall

6611

Females

1895

F55-59

49

18M→20M

18.0 - 20.0 mi

Top 70%
×3stories
+52ft-26ft

Overall

5010

Females

1359

F55-59

30

20M→22M

20.0 - 22.0 mi

Top 76%
×21stories
+17ft-266ft

Overall

5421

Females

1538

F55-59

35

22M→24M

22.0 - 24.0 mi

Top 71%
×3stories
+70ft-85ft

Overall

5053

Females

1423

F55-59

29

24M→Finish

24.0 - 26.2 mi

Top 72%
~flat
+2ft-2ft

Overall

5130

Females

1431

F55-59

32

Passing Analysis

Category:
Athletes Passed
1078*
Passed By
1624
Net Change
-546
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4923
2M → 4M230*87+143#4923#4780
4M → 6M106223-117#4780#4897
6M → 8M74*65+9#4897#4888
8M → 9.6M62*160-98#4888#4986
9.6M → 10M1618-2#4986#4988
10M → 10.5M7320+53#4988#4935
10.5M → 12M4468-464#4935#5399
12M → 14M70*54+16#5399#5383
14M → 16M150*56+94#5383#5289
16M → 18M12334-322#5289#5611
18M → 20M81*24+57#5611#5554
20M → 22M55*57-2#5554#5556
22M → 24M79*31+48#5556#5508
24M → Finish66*27+39#5508#5469
TOTALS1078*1624-546

* 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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