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SF MARATHON 1ST HALF 2026

Mariela Rosa Casillas

San Francisco, CA

Bib: 18020 F 28

0:00
0:00
/ mi
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Overall
#0 / 6575
Top 41%
Gender (Female)
#0 / 2930
Top 28%
Division (F25-29)
#0 / 674
Top 31%
Race Day Weather
59°/49°F
scattered clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
2M
10:15/mi
20:31
→ flat
12 ft elev
4M
10:38/mi
41:46
↑ 67↓ 69
10 ft elev
6M
10:40/mi
1:03:07
↑ 1231.1%
126 ft elev
8M
11:34/mi
1:26:16
↑ 166↓ 531.1%
246 ft elev
9.6M
7:30/mi
1:38:16
↑ 68↓ 1931.5%
126 ft elev
10M
16:49/mi
1:44:59
↓ 241.1%
90 ft elev
10.5M
4:32/mi
1:47:15
↓ 732.7%
18 ft elev
12M
13:17/mi
2:07:11
↑ 2803.2%
272 ft elev
Finish· 13.11 mi
9:29/mi
2:17:42
↑ 14↓ 891.3%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:03:07
Pace10:31 /mi
2nd Half
Distance7.11 mi
Time1:14:35
Pace10:29 /mi
📊Positive Split: 18.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:08:0120:3110:1520:31
10:15
-
4M
4.00 mi07:29:1641:4610:2721:15
10:38
+0:23
6M
6.00 mi07:50:371:03:0710:3121:21
10:40
+0:02
8M
8.00 mi08:13:461:26:1610:4723:09
11:34
+0:54
9.6M
9.60 mi08:25:461:38:1610:1412:00
7:30
-4:04
10M
10.00 mi08:32:291:44:5910:306:43
16:49
+9:19
10.5M
10.50 mi08:34:451:47:1510:132:16
4:32
-12:17
12M
12.00 mi08:54:412:07:1110:3619:56
13:17
+8:45
Finish
13.11 mi09:05:122:17:4210:3010:31
9:29
-3:48

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

4:32 /mi

Average Pace

10:30 /mi

Slowest Pace

16:49 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

14:16

10% of race

Time at Steady Pace

1:36:47

70% of race

Time at Slower Pace

26:39

19% of race

Average Pace: 10:30 /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 mi07:08:0120:3110:1520:31
10:15
#3476
4M
4.00 mi07:29:1641:4610:2721:15
10:38
#3598
6M
6.00 mi07:50:371:03:0710:3121:21
10:40
#3524
8M
8.00 mi08:13:461:26:1610:4723:09
11:34
#3664
9.6M
9.60 mi08:25:461:38:1610:1412:00
7:30
#3164
10M
10.00 mi08:32:291:44:5910:306:43
16:49
#3001
10.5M
10.50 mi08:34:451:47:1510:132:16
4:32
#2971
12M
12.00 mi08:54:412:07:1110:3619:56
13:17
#2787
Finish
13.11 mi09:05:122:17:4210:3010:31
9:29
#2705
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 26%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

8:59

Segment Time

9:59/mi

Pace

0.90 mi

Distance

Overall

1699

Women

431

Division

105

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi347611682812172(Top 33%)641(Top 22%)164(Top 24%)
4M4.00 mi2.00 mi3598-1221214-46292-113731(Top 57%)1282(Top 44%)321(Top 48%)
6M6.00 mi2.00 mi3524+741180+34295-33518(Top 54%)1177(Top 40%)296(Top 44%)
8M8.00 mi2.00 mi3664-1401239-59306-114153(Top 63%)1478(Top 50%)359(Top 53%)
9.6M9.60 mi1.60 mi3164+5001008+231247+591061(Top 16%)334(Top 11%)83(Top 12%)
10M10.00 mi0.40 mi3001+163946+62231+161720(Top 26%)458(Top 16%)103(Top 15%)
10.5M10.50 mi0.50 mi2971+30934+12230+11945(Top 30%)521(Top 18%)125(Top 19%)
12M12.00 mi1.50 mi2787+184864+70212+182172(Top 33%)641(Top 22%)164(Top 24%)
Finish13.11 mi1.11 mi2705+82833+31208+42234(Top 34%)668(Top 23%)179(Top 27%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 33%
~flat
+5ft-3ft

Overall

2172

Females

641

F25-29

164

2M→4M

2.0 - 4.0 mi

Top 57%
×4story building
+67ft-69ft

Overall

3731

Females

1282

F25-29

321

4M→6M

4.0 - 6.0 mi

Top 54%
×9story building
+123ft-9ft

Overall

3518

Females

1177

F25-29

296

6M→8M

6.0 - 8.0 mi

Top 63%
×12story building
+166ft-53ft

Overall

4153

Females

1478

F25-29

359

8M→9.6M

8.0 - 9.6 mi

Top 16%
×13story building
+68ft-193ft

Overall

1061

Females

334

F25-29

83

9.6M→10M

9.6 - 10.0 mi

Top 26%
×2story building
+0ft-24ft

Overall

1720

Females

458

F25-29

103

10M→10.5M

10.0 - 10.5 mi

Top 30%
×6story building
+1ft-73ft

Overall

1945

Females

521

F25-29

125

10.5M→12M

10.5 - 12.0 mi

Top 33%
×21story building
+280ft-26ft

Overall

2172

Females

641

F25-29

164

12M→Finish

12.0 - 13.1 mi

Top 34%
×7story building
+14ft-89ft

Overall

2234

Females

668

F25-29

179

Passing Analysis

Category:
Athletes Passed
1362*
Passed By
591
Net Change
+771
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3476
2M → 4M128250-122#3476#3598
4M → 6M16187+74#3598#3524
6M → 8M77*217-140#3524#3664
8M → 9.6M5022+500#3664#3164
9.6M → 10M1641+163#3164#3001
10M → 10.5M300+30#3001#2971
10.5M → 12M20925+184#2971#2787
12M → Finish91*9+82#2787#2705
TOTALS1362*591+771

* 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