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SF MARATHON 1ST HALF 2026

Natasha Mascarenhas

Bib: 13718•F•Age: 29

San Francisco, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
Division (F25-29)
#0 / 674
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
12:33/mi
25:07
→ flat
4M
13:08/mi
51:22
↑ 67↓ 69
6M
12:49/mi
1:17:00
↑ 1231.1%
8M
13:11/mi
1:43:22
↑ 166↓ 531.1%
9.6M
13:11/mi
2:04:28
↑ 68↓ 1931.5%
10M
24:32/mi
2:14:16
↓ 241.1%
10.5M
6:32/mi
2:17:32
↓ 732.7%
12M
18:00/mi
2:44:32
↑ 2803.2%
Finish· 13.11 mi
13:38/mi
2:59:39
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:17:00
Pace12:50 /mi
2nd Half
Distance7.11 mi
Time1:42:39
Pace14:26 /mi
📊Positive Split: 33.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:05:5925:0712:3325:07
12:33
-
4M
4.00 mi07:32:1451:2212:5126:15
13:08
+0:35
6M
6.00 mi07:57:521:17:0012:5025:38
12:49
-0:19
8M
8.00 mi08:24:141:43:2212:5526:22
13:11
+0:22
9.6M
9.60 mi08:45:202:04:2812:5821:06
13:11
0:00
10M
10.00 mi08:55:082:14:1613:269:48
24:32
+11:21
10.5M
10.50 mi08:58:242:17:3213:063:16
6:32
-18:00
12M
12.00 mi09:25:242:44:3213:4327:00
18:00
+11:28
Finish
13.11 mi09:40:312:59:3913:4215:07
13:38
-4:22

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

6:32 /mi

Average Pace

13:42 /mi

Slowest Pace

24:32 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:16

2% of race

Time at Steady Pace

2:19:35

78% of race

Time at Slower Pace

36:48

20% of race

Average Pace: 13:42 /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 mi07:05:5925:0712:3325:07
12:33
#6261
4M
4.00 mi07:32:1451:2212:5126:15
13:08
#6224
6M
6.00 mi07:57:521:17:0012:5025:38
12:49
#6108
8M
8.00 mi08:24:141:43:2212:5526:22
13:11
#5998
9.6M
9.60 mi08:45:202:04:2812:5821:06
13:11
#6138
10M
10.00 mi08:55:082:14:1613:269:48
24:32
#6109
10.5M
10.50 mi08:58:242:17:3213:063:16
6:32
#6101
12M
12.00 mi09:25:242:44:3213:4327:00
18:00
#6039
Finish
13.11 mi09:40:312:59:3913:4215:07
13:38
#6035
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 85%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

13:04

Segment Time

14:31/mi

Pace

0.90 mi

Distance

Overall

5574

Women

2354

Division

566

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
2M2.00 mi2.00 mi626127066315431(Top 83%)2290(Top 78%)547(Top 81%)
4M4.00 mi2.00 mi6224+372686+20628+36168(Top 94%)2660(Top 91%)626(Top 93%)
6M6.00 mi2.00 mi6108+1162602+84614+145727(Top 87%)2372(Top 81%)577(Top 86%)
8M8.00 mi2.00 mi5998+1102528+74602+125568(Top 85%)2274(Top 78%)526(Top 78%)
9.6M9.60 mi1.60 mi6138-1402626-98618-166330(Top 96%)2788(Top 95%)637(Top 95%)
10M10.00 mi0.40 mi6109+292617+9617+15496(Top 84%)2323(Top 79%)548(Top 81%)
10.5M10.50 mi0.50 mi6101+82611+6616+15917(Top 90%)2551(Top 87%)604(Top 90%)
12M12.00 mi1.50 mi6039+622580+31610+65431(Top 83%)2290(Top 78%)547(Top 81%)
Finish13.11 mi1.11 mi6035+42576+4613-35847(Top 89%)2539(Top 87%)615(Top 91%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 83%
~flat
+5ft-3ft

Overall

5431

Females

2290

F25-29

547

2M→4M

2.0 - 4.0 mi

Top 94%
×4story building
+67ft-69ft

Overall

6168

Females

2660

F25-29

628

4M→6M

4.0 - 6.0 mi

Top 87%
×9story building
+123ft-9ft

Overall

5727

Females

2372

F25-29

577

6M→8M

6.0 - 8.0 mi

Top 85%
×12story building
+166ft-53ft

Overall

5568

Females

2274

F25-29

527

8M→9.6M

8.0 - 9.6 mi

Top 96%
×13story building
+68ft-193ft

Overall

6330

Females

2788

F25-29

638

9.6M→10M

9.6 - 10.0 mi

Top 84%
×2story building
+0ft-24ft

Overall

5496

Females

2323

F25-29

549

10M→10.5M

10.0 - 10.5 mi

Top 90%
×6story building
+1ft-73ft

Overall

5917

Females

2551

F25-29

605

10.5M→12M

10.5 - 12.0 mi

Top 83%
×21story building
+280ft-26ft

Overall

5431

Females

2290

F25-29

547

12M→Finish

12.0 - 13.1 mi

Top 89%
×7story building
+14ft-89ft

Overall

5847

Females

2539

F25-29

615

Passing Analysis

Category:
Athletes Passed
560*
Passed By
334
Net Change
+226
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#6261
2M → 4M106*69+37#6261#6224
4M → 6M128*12+116#6224#6108
6M → 8M145*35+110#6108#5998
8M → 9.6M12152-140#5998#6138
9.6M → 10M4819+29#6138#6109
10M → 10.5M102+8#6109#6101
10.5M → 12M82*20+62#6101#6039
12M → Finish29*25+4#6039#6035
TOTALS560*334+226

* 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