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SF MARATHON 2ND HALF 2026

Natasha Alvarenga

Bib: 22811•F•Age: 22

Modesto, CA

0:00
0:00
/ mi
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Overall
#0 / 3840
Top 14%
Gender (Female)
#0 / 1760
Top 7%
F20-29
#0 / 218
Top 11%
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
8:25/mi
16:50
↑ 138↓ 680.7%
4M
7:47/mi
32:23
↑ 1631.4%
6M
10:05/mi
52:34
↑ 55↓ 830.3%
8M
6:12/mi
1:04:58
↑ 65↓ 1510.8%
10M
8:21/mi
1:21:40
↑ 61↓ 1741.1%
12M
8:26/mi
1:38:32
↑ 41↓ 530.1%
Finish· 13.11 mi
8:04/mi
1:47:29
→ flat

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time52:34
Pace8:46 /mi
2nd Half
Distance7.11 mi
Time54:55
Pace7:43 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi08:51:0116:508:2516:50
8:25
-
4M
4.00 mi09:06:3432:238:0615:33
7:47
-0:38
6M
6.00 mi09:26:4552:348:4620:11
10:05
+2:18
8M
8.00 mi09:39:091:04:588:0712:24
6:12
-3:53
10M
10.00 mi09:55:511:21:408:1016:42
8:21
+2:09
12M
12.00 mi10:12:431:38:328:1316:52
8:26
+0:05
Finish
13.11 mi10:21:401:47:298:128:57
8:04
-0:22

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

6:12 /mi

Average Pace

8:12 /mi

Slowest Pace

10:05 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

27:57

26% of race

Time at Steady Pace

59:21

55% of race

Time at Slower Pace

20:11

19% of race

Average Pace: 8:12 /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 mi08:51:0116:508:2516:50
8:25
#698
4M
4.00 mi09:06:3432:238:0615:33
7:47
#663
6M
6.00 mi09:26:4552:348:4620:11
10:05
#642
8M
8.00 mi09:39:091:04:588:0712:24
6:12
#631
10M
10.00 mi09:55:511:21:408:1016:42
8:21
#601
12M
12.00 mi10:12:431:38:328:1316:52
8:26
#563
Finish
13.11 mi10:21:401:47:298:128:57
8:04
#539
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF20-29Seg. OverallSeg. FemalesSeg. F20-29
2M2.00 mi2.00 mi69815331454(Top 12%)104(Top 6%)22(Top 10%)
4M4.00 mi2.00 mi663+3515332-1634(Top 17%)145(Top 8%)31(Top 14%)
6M6.00 mi2.00 mi642+21149+432642(Top 17%)141(Top 8%)27(Top 12%)
8M8.00 mi2.00 mi631+11136+1326+6583(Top 15%)128(Top 7%)24(Top 11%)
10M10.00 mi2.00 mi601+30130+625+1551(Top 14%)122(Top 7%)24(Top 11%)
12M12.00 mi2.00 mi563+38124+626-1454(Top 12%)104(Top 6%)22(Top 10%)
Finish13.11 mi1.11 mi539+24121+325+1467(Top 12%)106(Top 6%)23(Top 11%)

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 12%
×9story building
+138ft-68ft

Overall

454

Females

104

F20-24

22

2M→4M

2.0 - 4.0 mi

Top 17%
×13story building
+163ft-19ft

Overall

634

Females

145

F20-24

31

4M→6M

4.0 - 6.0 mi

Top 17%
×4story building
+55ft-83ft

Overall

642

Females

141

F20-24

27

6M→8M

6.0 - 8.0 mi

Top 15%
×10story building
+65ft-151ft

Overall

583

Females

128

F20-24

24

8M→10M

8.0 - 10.0 mi

Top 14%
×10story building
+61ft-174ft

Overall

551

Females

122

F20-24

24

10M→12M

10.0 - 12.0 mi

Top 12%
×3story building
+41ft-53ft

Overall

454

Females

104

F20-24

22

12M→Finish

12.0 - 13.1 mi

Top 12%
×1human
+6ft-6ft

Overall

467

Females

106

F20-24

23

Passing Analysis

Category:
Athletes Passed
229*
Passed By
70
Net Change
+159
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#698
2M → 4M6126+35#698#663
4M → 6M3514+21#663#642
6M → 8M2817+11#642#631
8M → 10M38*8+30#631#601
10M → 12M424+38#601#563
12M → Finish251+24#563#539
TOTALS229*70+159

* 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