San Francisco Marathon logo
SF MARATHON 1ST HALF 2026

Jiachen Ding

Bib: 20020•M•Age: 26

San Mateo, CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 6575
Top 11%
Gender (Male)
#0 / 3619
Top 16%
Division (M25-29)
#0 / 796
Top 17%
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
8:19/mi
16:39
→ flat
4M
7:58/mi
32:35
↑ 67↓ 69
6M
8:09/mi
48:53
↑ 1231.1%
8M
8:00/mi
1:04:54
↑ 166↓ 531.1%
9.6M
8:00/mi
1:17:42
↑ 68↓ 1931.5%
10M
15:11/mi
1:23:46
↓ 241.1%
10.5M
3:58/mi
1:25:45
↓ 732.7%
12M
11:59/mi
1:43:44
↑ 2803.2%
Finish· 13.11 mi
9:12/mi
1:53:56
↑ 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
Time48:53
Pace8:09 /mi
2nd Half
Distance7.11 mi
Time1:05:03
Pace9:09 /mi
📊Positive Split: 33.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:05:5716:398:1916:39
8:19
-
4M
4.00 mi07:21:5332:358:0915:56
7:58
-0:21
6M
6.00 mi07:38:1148:538:0916:18
8:09
+0:11
8M
8.00 mi07:54:121:04:548:0716:01
8:00
-0:09
9.6M
9.60 mi08:07:001:17:428:0612:48
8:00
0:00
10M
10.00 mi08:13:041:23:468:236:04
15:11
+7:11
10.5M
10.50 mi08:15:031:25:458:101:59
3:58
-11:13
12M
12.00 mi08:33:021:43:448:3917:59
11:59
+8:01
Finish
13.11 mi08:43:141:53:568:4110:12
9:12
-2:47

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

3:58 /mi

Average Pace

8:41 /mi

Slowest Pace

15:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:59

2% of race

Time at Steady Pace

1:27:54

77% of race

Time at Slower Pace

24:03

21% of race

Average Pace: 8:41 /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 mi07:05:5716:398:1916:39
8:19
#749
4M
4.00 mi07:21:5332:358:0915:56
7:58
#564
6M
6.00 mi07:38:1148:538:0916:18
8:09
#554
8M
8.00 mi07:54:121:04:548:0716:01
8:00
#489
9.6M
9.60 mi08:07:001:17:428:0612:48
8:00
#593
10M
10.00 mi08:13:041:23:468:236:04
15:11
#596
10.5M
10.50 mi08:15:031:25:458:101:59
3:58
#597
12M
12.00 mi08:33:021:43:448:3917:59
11:59
#657
Finish
13.11 mi08:43:141:53:568:4110:12
9:12
#691
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 10%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:03

Segment Time

8:57/mi

Pace

0.90 mi

Distance

Overall

675

Men

552

Division

137

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi7496211491212(Top 18%)918(Top 25%)212(Top 27%)
4M4.00 mi2.00 mi564+185479+142109+40436(Top 7%)369(Top 10%)86(Top 11%)
6M6.00 mi2.00 mi554+10468+11112-3590(Top 9%)492(Top 14%)115(Top 14%)
8M8.00 mi2.00 mi489+65416+5298+14462(Top 7%)404(Top 11%)104(Top 13%)
9.6M9.60 mi1.60 mi593-104495-79115-171547(Top 24%)1031(Top 28%)248(Top 31%)
10M10.00 mi0.40 mi596-3497-2117-2795(Top 12%)623(Top 17%)151(Top 19%)
10.5M10.50 mi0.50 mi597-1496+1117577(Top 9%)480(Top 13%)118(Top 15%)
12M12.00 mi1.50 mi657-60538-42131-141212(Top 18%)918(Top 25%)212(Top 27%)
Finish13.11 mi1.11 mi691-34573-35135-41869(Top 28%)1355(Top 37%)329(Top 41%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 18%
~flat
+5ft-3ft

Overall

1212

Males

918

M25-29

212

2M→4M

2.0 - 4.0 mi

Top 7%
×4story building
+67ft-69ft

Overall

436

Males

369

M25-29

86

4M→6M

4.0 - 6.0 mi

Top 9%
×9story building
+123ft-9ft

Overall

590

Males

492

M25-29

115

6M→8M

6.0 - 8.0 mi

Top 7%
×12story building
+166ft-53ft

Overall

462

Males

404

M25-29

104

8M→9.6M

8.0 - 9.6 mi

Top 24%
×13story building
+68ft-193ft

Overall

1547

Males

1031

M25-29

248

9.6M→10M

9.6 - 10.0 mi

Top 12%
×2story building
+0ft-24ft

Overall

795

Males

623

M25-29

152

10M→10.5M

10.0 - 10.5 mi

Top 9%
×6story building
+1ft-73ft

Overall

577

Males

480

M25-29

119

10.5M→12M

10.5 - 12.0 mi

Top 18%
×21story building
+280ft-26ft

Overall

1212

Males

918

M25-29

212

12M→Finish

12.0 - 13.1 mi

Top 28%
×7story building
+14ft-89ft

Overall

1869

Males

1355

M25-29

329

Passing Analysis

Category:
Athletes Passed
352*
Passed By
294
Net Change
+58
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#749
2M → 4M1916+185#749#564
4M → 6M3222+10#564#554
6M → 8M8116+65#554#489
8M → 9.6M3107-104#489#593
9.6M → 10M58-3#593#596
10M → 10.5M45-1#596#597
10.5M → 12M1575-60#597#657
12M → Finish21*55-34#657#691
TOTALS352*294+58

* 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