San Francisco Marathon logo
SF MARATHON 1ST HALF 2026

Derby Ng

Bib: 14523•M•Age: 34

Long Island City, NY

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 6575
Top 39%
Gender (Male)
#0 / 3619
Top 49%
Division (M30-34)
#0 / 772
Top 50%
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
9:59/mi
19:59
→ flat
4M
10:14/mi
40:26
↑ 67↓ 69
6M
10:16/mi
1:00:58
↑ 1231.1%
8M
9:56/mi
1:20:51
↑ 166↓ 531.1%
9.6M
9:56/mi
1:36:45
↑ 68↓ 1931.5%
10M
20:49/mi
1:45:04
↓ 241.1%
10.5M
4:52/mi
1:47:30
↓ 732.7%
12M
12:27/mi
2:06:11
↑ 2803.2%
Finish· 13.11 mi
8:56/mi
2:16:06
↑ 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
Time1:00:58
Pace10:10 /mi
2nd Half
Distance7.11 mi
Time1:15:08
Pace10:34 /mi
📊Positive Split: 23.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:04:0919:599:5919:59
9:59
-
4M
4.00 mi07:24:3640:2610:0720:27
10:14
+0:15
6M
6.00 mi07:45:081:00:5810:1020:32
10:16
+0:02
8M
8.00 mi08:05:011:20:5110:0619:53
9:56
-0:20
9.6M
9.60 mi08:20:551:36:4510:0515:54
9:56
0:00
10M
10.00 mi08:29:141:45:0410:308:19
20:49
+10:53
10.5M
10.50 mi08:31:401:47:3010:142:26
4:52
-15:57
12M
12.00 mi08:50:212:06:1110:3118:41
12:27
+7:35
Finish
13.11 mi09:00:162:16:0610:239:55
8:56
-3:31

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

4:52 /mi

Average Pace

10:23 /mi

Slowest Pace

20:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:26

2% of race

Time at Steady Pace

1:46:40

78% of race

Time at Slower Pace

27:00

20% of race

Average Pace: 10:23 /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 mi07:04:0919:599:5919:59
9:59
#3030
4M
4.00 mi07:24:3640:2610:0720:27
10:14
#3036
6M
6.00 mi07:45:081:00:5810:1020:32
10:16
#3005
8M
8.00 mi08:05:011:20:5110:0619:53
9:56
#2801
9.6M
9.60 mi08:20:551:36:4510:0515:54
9:56
#2936
10M
10.00 mi08:29:141:45:0410:308:19
20:49
#3015
10.5M
10.50 mi08:31:401:47:3010:142:26
4:52
#3001
12M
12.00 mi08:50:212:06:1110:3118:41
12:27
#2679
Finish
13.11 mi09:00:162:16:0610:239:55
8:56
#2558
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 55%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:45

Segment Time

11:57/mi

Pace

0.90 mi

Distance

Overall

3591

Men

2303

Division

500

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM30-34Seg. OverallSeg. MalesSeg. M30-34
2M2.00 mi2.00 mi303020604321542(Top 23%)1131(Top 31%)256(Top 33%)
4M4.00 mi2.00 mi3036-62070-10430+23130(Top 48%)2123(Top 59%)435(Top 56%)
6M6.00 mi2.00 mi3005+312057+13427+33002(Top 46%)2066(Top 57%)430(Top 56%)
8M8.00 mi2.00 mi2801+2041960+97410+172320(Top 35%)1691(Top 47%)361(Top 47%)
9.6M9.60 mi1.60 mi2936-1352015-55420-103930(Top 60%)2366(Top 65%)503(Top 65%)
10M10.00 mi0.40 mi3015-792055-40428-83925(Top 60%)2464(Top 68%)532(Top 69%)
10.5M10.50 mi0.50 mi3001+142044+11429-12782(Top 42%)1881(Top 52%)412(Top 53%)
12M12.00 mi1.50 mi2679+3221854+190392+371542(Top 23%)1131(Top 31%)256(Top 33%)
Finish13.11 mi1.11 mi2558+1211781+73383+91592(Top 24%)1183(Top 33%)261(Top 34%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 23%
~flat
+5ft-3ft

Overall

1542

Males

1131

M30-34

257

2M→4M

2.0 - 4.0 mi

Top 48%
×4story building
+67ft-69ft

Overall

3130

Males

2123

M30-34

437

4M→6M

4.0 - 6.0 mi

Top 46%
×9story building
+123ft-9ft

Overall

3002

Males

2066

M30-34

432

6M→8M

6.0 - 8.0 mi

Top 35%
×12story building
+166ft-53ft

Overall

2320

Males

1691

M30-34

362

8M→9.6M

8.0 - 9.6 mi

Top 60%
×13story building
+68ft-193ft

Overall

3930

Males

2366

M30-34

504

9.6M→10M

9.6 - 10.0 mi

Top 60%
×2story building
+0ft-24ft

Overall

3925

Males

2464

M30-34

534

10M→10.5M

10.0 - 10.5 mi

Top 42%
×6story building
+1ft-73ft

Overall

2782

Males

1881

M30-34

414

10.5M→12M

10.5 - 12.0 mi

Top 23%
×21story building
+280ft-26ft

Overall

1542

Males

1131

M30-34

257

12M→Finish

12.0 - 13.1 mi

Top 24%
×7story building
+14ft-89ft

Overall

1592

Males

1183

M30-34

261

Passing Analysis

Category:
Athletes Passed
1085*
Passed By
613
Net Change
+472
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3030
2M → 4M157163-6#3030#3036
4M → 6M139108+31#3036#3005
6M → 8M240*36+204#3005#2801
8M → 9.6M47182-135#2801#2936
9.6M → 10M25104-79#2936#3015
10M → 10.5M228+14#3015#3001
10.5M → 12M33210+322#3001#2679
12M → Finish123*2+121#2679#2558
TOTALS1085*613+472

* 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