San Francisco Marathon logo
SF MARATHON 2ND HALF 2026

Semahja Mack

Bib: 26172•M•Age: 26

Portland, OR

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 3840
Top 30%
Gender (Male)
#0 / 2065
Top 39%
Division (M25-29)
#0 / 503
Top 43%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Course Elevation
9–292 ft
≈
×24story building
•▲ 548 ft climb · ▼ 587 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
2M
9:10/mi
18:20
↑ 138↓ 680.7%
4M
7:51/mi
34:02
↑ 1631.4%
6M
9:56/mi
53:55
↑ 55↓ 830.3%
8M
6:33/mi
1:07:02
↑ 65↓ 1510.8%
10M
8:48/mi
1:24:37
↑ 61↓ 1741.1%
12M
10:51/mi
1:46:19
↑ 41↓ 530.1%
Finish· 13.11 mi
11:15/mi
1:58:48
→ flat

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
Time53:55
Pace8:59 /mi
2nd Half
Distance7.11 mi
Time1:04:53
Pace9:08 /mi
📊Positive Split: 20.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:00:2418:209:1018:20
9:10
-
4M
4.00 mi09:16:0634:028:3115:42
7:51
-1:19
6M
6.00 mi09:35:5953:558:5919:53
9:56
+2:05
8M
8.00 mi09:49:061:07:028:2313:07
6:33
-3:23
10M
10.00 mi10:06:411:24:378:2817:35
8:48
+2:15
12M
12.00 mi10:28:231:46:198:5221:42
10:51
+2:03
Finish
13.11 mi10:40:521:58:489:0412:29
11:15
+0:24

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

6:33 /mi

Average Pace

9:04 /mi

Slowest Pace

11:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

28:49

24% of race

Time at Steady Pace

55:48

47% of race

Time at Slower Pace

34:11

29% of race

Average Pace: 9:04 /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 mi09:00:2418:209:1018:20
9:10
#1354
4M
4.00 mi09:16:0634:028:3115:42
7:51
#974
6M
6.00 mi09:35:5953:558:5919:53
9:56
#806
8M
8.00 mi09:49:061:07:028:2313:07
6:33
#813
10M
10.00 mi10:06:411:24:378:2817:35
8:48
#806
12M
12.00 mi10:28:231:46:198:5221:42
10:51
#985
Finish
13.11 mi10:40:521:58:489:0412:29
11:15
#1133
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM25-29Seg. OverallSeg. MalesSeg. M25-29
2M2.00 mi2.00 mi13549452431835(Top 48%)1178(Top 57%)300(Top 60%)
4M4.00 mi2.00 mi974+380704+241189+54703(Top 18%)537(Top 26%)140(Top 28%)
6M6.00 mi2.00 mi806+168605+99159+30554(Top 14%)436(Top 21%)114(Top 23%)
8M8.00 mi2.00 mi813-7607-2163-4886(Top 23%)652(Top 32%)172(Top 34%)
10M10.00 mi2.00 mi806+7605+2163807(Top 21%)601(Top 29%)164(Top 33%)
12M12.00 mi2.00 mi985-179709-104189-261835(Top 48%)1178(Top 57%)300(Top 60%)
Finish13.11 mi1.11 mi1133-148805-96217-282293(Top 60%)1378(Top 67%)346(Top 69%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 48%
×9story building
+138ft-68ft

Overall

1835

Males

1178

M25-29

300

2M→4M

2.0 - 4.0 mi

Top 18%
×13story building
+163ft-19ft

Overall

703

Males

537

M25-29

140

4M→6M

4.0 - 6.0 mi

Top 14%
×4story building
+55ft-83ft

Overall

554

Males

436

M25-29

114

6M→8M

6.0 - 8.0 mi

Top 23%
×10story building
+65ft-151ft

Overall

886

Males

652

M25-29

172

8M→10M

8.0 - 10.0 mi

Top 21%
×10story building
+61ft-174ft

Overall

807

Males

601

M25-29

164

10M→12M

10.0 - 12.0 mi

Top 48%
×3story building
+41ft-53ft

Overall

1835

Males

1178

M25-29

300

12M→Finish

12.0 - 13.1 mi

Top 60%
×1human
+6ft-6ft

Overall

2293

Males

1378

M25-29

346

Passing Analysis

Category:
Athletes Passed
600*
Passed By
379
Net Change
+221
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#1354
2M → 4M3800+380#1354#974
4M → 6M1702+168#974#806
6M → 8M2229-7#806#813
8M → 10M27*20+7#813#806
10M → 12M1180-179#806#985
12M → Finish0148-148#985#1133
TOTALS600*379+221

* 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