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SF MARATHON 1ST HALF 2026

Colleen Blackburn

Bib: 18987•F•Age: 64

Los Gatos, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
Masters (Masters Women)
#0 / 781
Division (F60-64)
#0 / 60
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
12:05/mi
24:11
→ flat
4M
11:27/mi
47:05
↑ 67↓ 69
6M
12:06/mi
1:11:18
↑ 1231.1%
8M
13:08/mi
1:37:35
↑ 166↓ 531.1%
9.6M
9:23/mi
1:52:36
↑ 68↓ 1931.5%
10M
23:02/mi
2:01:48
↓ 241.1%
10.5M
5:54/mi
2:04:45
↓ 732.7%
12M
16:48/mi
2:29:57
↑ 2803.2%
Finish· 13.11 mi
12:50/mi
2:44:11
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:11:18
Pace11:53 /mi
2nd Half
Distance7.11 mi
Time1:32:53
Pace13:04 /mi
📊Positive Split: 30.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:13:5124:1112:0524:11
12:05
-
4M
4.00 mi07:36:4547:0511:4622:54
11:27
-0:38
6M
6.00 mi08:00:581:11:1811:5324:13
12:06
+0:39
8M
8.00 mi08:27:151:37:3512:1226:17
13:08
+1:02
9.6M
9.60 mi08:42:161:52:3611:4415:01
9:23
-3:45
10M
10.00 mi08:51:282:01:4812:119:12
23:02
+13:39
10.5M
10.50 mi08:54:252:04:4511:532:57
5:54
-17:08
12M
12.00 mi09:19:372:29:5712:3025:12
16:48
+10:54
Finish
13.11 mi09:33:512:44:1112:3114:14
12:50
-3:58

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

5:54 /mi

Average Pace

12:31 /mi

Slowest Pace

23:02 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

17:58

11% of race

Time at Steady Pace

1:51:49

68% of race

Time at Slower Pace

34:24

21% of race

Average Pace: 12:31 /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 mi07:13:5124:1112:0524:11
12:05
#5946
4M
4.00 mi07:36:4547:0511:4622:54
11:27
#5452
6M
6.00 mi08:00:581:11:1811:5324:13
12:06
#5337
8M
8.00 mi08:27:151:37:3512:1226:17
13:08
#5422
9.6M
9.60 mi08:42:161:52:3611:4415:01
9:23
#5144
10M
10.00 mi08:51:282:01:4812:119:12
23:02
#5117
10.5M
10.50 mi08:54:252:04:4511:532:57
5:54
#5109
12M
12.00 mi09:19:372:29:5712:3025:12
16:48
#5052
Finish
13.11 mi09:33:512:44:1112:3114:14
12:50
#5081
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 75%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

12:09

Segment Time

13:30/mi

Pace

0.90 mi

Distance

Overall

4955

Women

1996

Division

35

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF60-64Seg. OverallSeg. FemalesSeg. F60-64
2M2.00 mi2.00 mi59462515414747(Top 72%)1900(Top 65%)35(Top 58%)
4M4.00 mi2.00 mi5452+4942210+30539+24804(Top 73%)1852(Top 63%)29(Top 48%)
6M6.00 mi2.00 mi5337+1152127+8337+25182(Top 79%)2047(Top 70%)34(Top 57%)
8M8.00 mi2.00 mi5422-852166-3935+25538(Top 84%)2256(Top 77%)40(Top 67%)
9.6M9.60 mi1.60 mi5144+2782020+14632+33220(Top 49%)1213(Top 41%)23(Top 38%)
10M10.00 mi0.40 mi5117+272003+17324982(Top 76%)2016(Top 69%)39(Top 65%)
10.5M10.50 mi0.50 mi5109+82001+2325197(Top 79%)2123(Top 72%)37(Top 62%)
12M12.00 mi1.50 mi5052+571992+935-34747(Top 72%)1900(Top 65%)35(Top 58%)
Finish13.11 mi1.11 mi5081-292011-1936-15478(Top 83%)2340(Top 80%)39(Top 65%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 72%
~flat
+5ft-3ft

Overall

4747

Females

1900

F60-64

36

2M→4M

2.0 - 4.0 mi

Top 73%
×4story building
+67ft-69ft

Overall

4804

Females

1852

F60-64

31

4M→6M

4.0 - 6.0 mi

Top 79%
×9story building
+123ft-9ft

Overall

5182

Females

2047

F60-64

36

6M→8M

6.0 - 8.0 mi

Top 84%
×12story building
+166ft-53ft

Overall

5538

Females

2256

F60-64

42

8M→9.6M

8.0 - 9.6 mi

Top 49%
×13story building
+68ft-193ft

Overall

3220

Females

1213

F60-64

24

9.6M→10M

9.6 - 10.0 mi

Top 76%
×2story building
+0ft-24ft

Overall

4982

Females

2016

F60-64

41

10M→10.5M

10.0 - 10.5 mi

Top 79%
×6story building
+1ft-73ft

Overall

5197

Females

2123

F60-64

39

10.5M→12M

10.5 - 12.0 mi

Top 72%
×21story building
+280ft-26ft

Overall

4747

Females

1900

F60-64

36

12M→Finish

12.0 - 13.1 mi

Top 83%
×7story building
+14ft-89ft

Overall

5478

Females

2340

F60-64

39

Passing Analysis

Category:
Athletes Passed
1311*
Passed By
446
Net Change
+865
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#5946
2M → 4M506*12+494#5946#5452
4M → 6M169*54+115#5452#5337
6M → 8M86*171-85#5337#5422
8M → 9.6M29214+278#5422#5144
9.6M → 10M6538+27#5144#5117
10M → 10.5M157+8#5117#5109
10.5M → 12M133*76+57#5109#5052
12M → Finish45*74-29#5052#5081
TOTALS1311*446+865

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

📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Official Timing Data

The San Francisco Marathon

The San Francisco Marathon

Race Place Events

Race Place Events