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SF MARATHON 2ND HALF 2026

Marissa Guillen

Bib: 24983•F•Age: 27

Santa Clara, CA

0:00
0:00
/ mi
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Overall
#0 / 3840
Gender (Female)
#0 / 1760
Division (F25-29)
#0 / 495
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
2M
25:17
Rank: #3526
Start → 2M
25:17 | 12:38/mi
4M
55:42
Rank: #3711 (-185)
2M → 4M
30:25 | 15:13/mi
6M
1:31:30
Rank: #3721 (-10)
4M → 6M
35:48 | 17:54/mi
8M
1:55:56
Rank: #3738 (-17)
6M → 8M
24:26 | 12:13/mi
10M
2:31:53
Rank: #3754 (-16)
8M → 10M
35:57 | 17:59/mi
12M
3:07:12
Rank: #3754
10M → 12M
35:19 | 17:39/mi
Finish· 13.11 mi
3:25:26
Rank: #3743 (+11)
12M → Finish
18:14 | 16:26/mi

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:31:30
Pace15:15 /mi
2nd Half
Distance7.11 mi
Time1:53:56
Pace16:02 /mi
📊Positive Split: 24.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi09:09:3325:1712:3825:17
12:38
-
4M
4.00 mi09:39:5855:4213:5630:25
15:13
+2:35
6M
6.00 mi10:15:461:31:3015:1535:48
17:54
+2:41
8M
8.00 mi10:40:121:55:5614:2924:26
12:13
-5:41
10M
10.00 mi11:16:092:31:5315:1135:57
17:59
+5:46
12M
12.00 mi11:51:283:07:1215:3635:19
17:39
-0:20
Finish
13.11 mi12:09:423:25:2615:4018:14
16:26
-1:13

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

12:13 /mi

Average Pace

15:40 /mi

Slowest Pace

17:59 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:20:08

39% of race

Time at Steady Pace

18:14

9% of race

Time at Slower Pace

1:47:04

52% of race

Average Pace: 15:40 /mi

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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 mi09:09:3325:1712:3825:17
12:38
#3526
4M
4.00 mi09:39:5855:4213:5630:25
15:13
#3711
6M
6.00 mi10:15:461:31:3015:1535:48
17:54
#3721
8M
8.00 mi10:40:121:55:5614:2924:26
12:13
#3738
10M
10.00 mi11:16:092:31:5315:1135:57
17:59
#3754
12M
12.00 mi11:51:283:07:1215:3635:19
17:39
#3754
Finish
13.11 mi12:09:423:25:2615:4018:14
16:26
#3743
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi352615544523727(Top 97%)1709(Top 97%)482(Top 97%)
4M4.00 mi2.00 mi3711-1851685-131477-253768(Top 98%)1728(Top 98%)486(Top 98%)
6M6.00 mi2.00 mi3721-101688-3478-13721(Top 97%)1692(Top 96%)481(Top 97%)
8M8.00 mi2.00 mi3738-171702-14482-43761(Top 98%)1726(Top 98%)487(Top 98%)
10M10.00 mi2.00 mi3754-161718-16483-13785(Top 99%)1740(Top 99%)489(Top 99%)
12M12.00 mi2.00 mi37541716+24833727(Top 97%)1709(Top 97%)482(Top 97%)
Finish13.11 mi1.11 mi3743+111709+7482+13666(Top 95%)1670(Top 95%)473(Top 96%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 97%
×9stories
+138ft-68ft

Overall

3727

Females

1709

F25-29

483

2M→4M

2.0 - 4.0 mi

Top 98%
×13stories
+163ft-19ft

Overall

3768

Females

1728

F25-29

487

4M→6M

4.0 - 6.0 mi

Top 97%
×4stories
+55ft-83ft

Overall

3721

Females

1692

F25-29

482

6M→8M

6.0 - 8.0 mi

Top 98%
×10stories
+65ft-151ft

Overall

3761

Females

1726

F25-29

488

8M→10M

8.0 - 10.0 mi

Top 99%
×10stories
+61ft-174ft

Overall

3785

Females

1740

F25-29

490

10M→12M

10.0 - 12.0 mi

Top 97%
×3stories
+41ft-53ft

Overall

3727

Females

1709

F25-29

483

12M→Finish

12.0 - 13.1 mi

Top 95%
×1human
+6ft-6ft

Overall

3666

Females

1670

F25-29

473

Passing Analysis

Category:
Athletes Passed
29*
Passed By
246
Net Change
-217
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3526
2M → 4M1186-185#3526#3711
4M → 6M515-10#3711#3721
6M → 8M2*19-17#3721#3738
8M → 10M4*20-16#3738#3754
10M → 12M660#3754#3754
12M → Finish11*0+11#3754#3743
TOTALS29*246-217

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

📊

Passing Visuals

Category:
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🔥Passing Intensity

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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