San Francisco Marathon logo
SF MARATHON 1ST HALF 2026

Nelly Chung

Bib: 15324•F•Age: 49

Carlsbad, CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 6575
Gender (Female)
#0 / 2930
Top 41%
Masters (Masters Women)
#0 / 781
Top 32%
Division (F45-49)
#0 / 183
Top 33%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
9:44/mi
19:29
→ flat
4M
10:14/mi
39:56
↑ 67↓ 69
6M
10:39/mi
1:01:14
↑ 1231.1%
8M
12:03/mi
1:25:20
↑ 166↓ 531.1%
9.6M
8:49/mi
1:39:26
↑ 68↓ 1931.5%
10M
20:54/mi
1:47:47
↓ 241.1%
10.5M
5:30/mi
1:50:32
↓ 732.7%
12M
15:35/mi
2:13:54
↑ 2803.2%
Finish· 13.11 mi
11:05/mi
2:26:12
↑ 14↓ 891.3%

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:01:14
Pace10:12 /mi
2nd Half
Distance7.11 mi
Time1:24:58
Pace11:57 /mi
📊Positive Split: 38.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:06:0119:299:4419:29
9:44
-
4M
4.00 mi07:26:2839:569:5920:27
10:14
+0:30
6M
6.00 mi07:47:461:01:1410:1221:18
10:39
+0:25
8M
8.00 mi08:11:521:25:2010:4024:06
12:03
+1:24
9.6M
9.60 mi08:25:581:39:2610:2114:06
8:49
-3:14
10M
10.00 mi08:34:191:47:4710:478:21
20:54
+12:05
10.5M
10.50 mi08:37:041:50:3210:322:45
5:30
-15:24
12M
12.00 mi09:00:262:13:5411:1023:22
15:35
+10:05
Finish
13.11 mi09:12:442:26:1211:0912:18
11:05
-4:30

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

5:30 /mi

Average Pace

11:09 /mi

Slowest Pace

20:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45

2% of race

Time at Steady Pace

1:51:44

76% of race

Time at Slower Pace

31:43

22% of race

Average Pace: 11:09 /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...
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 mi07:06:0119:299:4419:29
9:44
#2637
4M
4.00 mi07:26:2839:569:5920:27
10:14
#2838
6M
6.00 mi07:47:461:01:1410:1221:18
10:39
#3083
8M
8.00 mi08:11:521:25:2010:4024:06
12:03
#3528
9.6M
9.60 mi08:25:581:39:2610:2114:06
8:49
#3311
10M
10.00 mi08:34:191:47:4710:478:21
20:54
#3355
10.5M
10.50 mi08:37:041:50:3210:322:45
5:30
#3374
12M
12.00 mi09:00:262:13:5411:1023:22
15:35
#3481
Finish
13.11 mi09:12:442:26:1211:0912:18
11:05
#3507
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 61%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

11:06

Segment Time

12:20/mi

Pace

0.90 mi

Distance

Overall

3985

Women

1469

Division

76

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
2M2.00 mi2.00 mi2637782403960(Top 60%)1481(Top 51%)78(Top 43%)
4M4.00 mi2.00 mi2838-201872-9047-73132(Top 48%)1000(Top 34%)54(Top 30%)
6M6.00 mi2.00 mi3083-245974-10248-13492(Top 53%)1165(Top 40%)56(Top 31%)
8M8.00 mi2.00 mi3528-4451178-20462-144613(Top 70%)1697(Top 58%)90(Top 49%)
9.6M9.60 mi1.60 mi3311+2171077+10158+42482(Top 38%)877(Top 30%)44(Top 24%)
10M10.00 mi0.40 mi3355-441101-24583980(Top 61%)1474(Top 50%)75(Top 41%)
10.5M10.50 mi0.50 mi3374-191113-1259-14373(Top 67%)1652(Top 56%)87(Top 48%)
12M12.00 mi1.50 mi3481-1071170-5761-23960(Top 60%)1481(Top 51%)78(Top 43%)
Finish13.11 mi1.11 mi3507-261187-17614111(Top 63%)1560(Top 53%)92(Top 50%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 60%
~flat
+5ft-3ft

Overall

3960

Females

1481

F45-49

79

2M→4M

2.0 - 4.0 mi

Top 48%
×4story building
+67ft-69ft

Overall

3132

Females

1000

F45-49

55

4M→6M

4.0 - 6.0 mi

Top 53%
×9story building
+123ft-9ft

Overall

3492

Females

1165

F45-49

57

6M→8M

6.0 - 8.0 mi

Top 70%
×12story building
+166ft-53ft

Overall

4613

Females

1697

F45-49

91

8M→9.6M

8.0 - 9.6 mi

Top 38%
×13story building
+68ft-193ft

Overall

2482

Females

877

F45-49

45

9.6M→10M

9.6 - 10.0 mi

Top 61%
×2story building
+0ft-24ft

Overall

3980

Females

1474

F45-49

76

10M→10.5M

10.0 - 10.5 mi

Top 67%
×6story building
+1ft-73ft

Overall

4373

Females

1652

F45-49

88

10.5M→12M

10.5 - 12.0 mi

Top 60%
×21story building
+280ft-26ft

Overall

3960

Females

1481

F45-49

79

12M→Finish

12.0 - 13.1 mi

Top 63%
×7story building
+14ft-89ft

Overall

4111

Females

1560

F45-49

92

Passing Analysis

Category:
Athletes Passed
526*
Passed By
1396
Net Change
-870
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#2637
2M → 4M89290-201#2637#2838
4M → 6M44289-245#2838#3083
6M → 8M12*457-445#3083#3528
8M → 9.6M26649+217#3528#3311
9.6M → 10M2973-44#3311#3355
10M → 10.5M524-19#3355#3374
10.5M → 12M45152-107#3374#3481
12M → Finish36*62-26#3481#3507
TOTALS526*1396-870

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

📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events