San Francisco Marathon logo
SF MARATHON 2ND HALF 2026

Elizabeth Seiffert

Bib: 22936•F•Age: 46

Walnut Creek, CA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 3840
Gender (Female)
#0 / 1760
Masters (Masters Women)
#0 / 365
Division (F45-49)
#0 / 81
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
11:51/mi
23:43
↑ 138↓ 680.7%
4M
11:25/mi
46:33
↑ 1631.4%
6M
17:05/mi
1:20:44
↑ 55↓ 830.3%
8M
9:27/mi
1:39:38
↑ 65↓ 1510.8%
10M
12:51/mi
2:05:19
↑ 61↓ 1741.1%
12M
13:09/mi
2:31:37
↑ 41↓ 530.1%
Finish· 13.11 mi
12:54/mi
2:45:55
→ 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
Time1:20:44
Pace13:27 /mi
2nd Half
Distance7.11 mi
Time1:25:11
Pace11:59 /mi
📊Positive Split: 5.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi08:56:0223:4311:5123:43
11:51
-
4M
4.00 mi09:18:5246:3311:3822:50
11:25
-0:26
6M
6.00 mi09:53:031:20:4413:2734:11
17:05
+5:40
8M
8.00 mi10:11:571:39:3812:2718:54
9:27
-7:38
10M
10.00 mi10:37:382:05:1912:3225:41
12:51
+3:24
12M
12.00 mi11:03:562:31:3712:3826:18
13:09
+0:18
Finish
13.11 mi11:18:142:45:5512:3914:18
12:54
-0:15

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

9:27 /mi

Average Pace

12:39 /mi

Slowest Pace

17:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

41:44

25% of race

Time at Steady Pace

1:30:00

54% of race

Time at Slower Pace

34:11

21% of race

Average Pace: 12:39 /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 mi08:56:0223:4311:5123:43
11:51
#3244
4M
4.00 mi09:18:5246:3311:3822:50
11:25
#3168
6M
6.00 mi09:53:031:20:4413:2734:11
17:05
#3431
8M
8.00 mi10:11:571:39:3812:2718:54
9:27
#3385
10M
10.00 mi10:37:382:05:1912:3225:41
12:51
#3317
12M
12.00 mi11:03:562:31:3712:3826:18
13:09
#3252
Finish
13.11 mi11:18:142:45:5512:3914:18
12:54
#3221
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
2M2.00 mi2.00 mi32441390572943(Top 77%)1236(Top 70%)47(Top 58%)
4M4.00 mi2.00 mi3168+761343+4754+33086(Top 80%)1297(Top 74%)51(Top 63%)
6M6.00 mi2.00 mi3431-2631499-15663-93653(Top 95%)1645(Top 93%)76(Top 94%)
8M8.00 mi2.00 mi3385+461472+2762+13170(Top 83%)1343(Top 76%)55(Top 68%)
10M10.00 mi2.00 mi3317+681433+3961+13100(Top 81%)1314(Top 75%)53(Top 65%)
12M12.00 mi2.00 mi3252+651395+3858+32943(Top 77%)1236(Top 70%)47(Top 58%)
Finish13.11 mi1.11 mi3221+311383+12583025(Top 79%)1299(Top 74%)56(Top 69%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 77%
×9story building
+138ft-68ft

Overall

2943

Females

1236

F45-49

47

2M→4M

2.0 - 4.0 mi

Top 80%
×13story building
+163ft-19ft

Overall

3086

Females

1297

F45-49

51

4M→6M

4.0 - 6.0 mi

Top 95%
×4story building
+55ft-83ft

Overall

3653

Females

1645

F45-49

76

6M→8M

6.0 - 8.0 mi

Top 83%
×10story building
+65ft-151ft

Overall

3170

Females

1343

F45-49

55

8M→10M

8.0 - 10.0 mi

Top 81%
×10story building
+61ft-174ft

Overall

3100

Females

1314

F45-49

53

10M→12M

10.0 - 12.0 mi

Top 77%
×3story building
+41ft-53ft

Overall

2943

Females

1236

F45-49

47

12M→Finish

12.0 - 13.1 mi

Top 79%
×1human
+6ft-6ft

Overall

3025

Females

1299

F45-49

56

Passing Analysis

Category:
Athletes Passed
347*
Passed By
324
Net Change
+23
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3244
2M → 4M11337+76#3244#3168
4M → 6M2265-263#3168#3431
6M → 8M52*6+46#3431#3385
8M → 10M78*10+68#3385#3317
10M → 12M661+65#3317#3252
12M → Finish36*5+31#3252#3221
TOTALS347*324+23

* 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