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SF MARATHON 2ND HALF 2026

Chelsea Alvarez

Santa Clara, CA

Bib: 25693 F 38

0:00
0:00
/ mi
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Overall
#0 / 3840
Gender (Female)
#0 / 1760
Division (F35-39)
#0 / 222
Race Day Weather
59°/49°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
48 ft elev
2M
14:18/mi
28:37
↑ 138↓ 680.7%
122 ft elev
4M
14:40/mi
57:56
↑ 1631.4%
280 ft elev
6M
18:31/mi
1:34:58
↑ 55↓ 830.3%
247 ft elev
8M
11:55/mi
1:58:48
↑ 65↓ 1510.8%
143 ft elev
10M
16:30/mi
2:31:48
↑ 61↓ 1741.1%
25 ft elev
12M
18:21/mi
3:08:30
↑ 41↓ 530.1%
12 ft elev
Finish· 13.11 mi
17:57/mi
3:28:24
→ flat
11 ft elev
Course Elevation
9–292 ft
≈
×24story building
•▲ 548 ft climb · ▼ 587 ft descent

The Course

Half Splits

1st Half· via 6M
1:34:5815:50 /mi⚡ faster
2nd Half
1:53:2615:57 /mi+19.4%
Positive split — 19.4% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
2M
28:3714:182.00 mi28:37
14:18
-
4M
57:5614:292.00 mi29:19
14:40
+0:22
6M
1:34:5815:502.00 mi37:02
18:31
+3:51
8M
1:58:4814:512.00 mi23:50
11:55
-6:36
10M
2:31:4815:112.00 mi33:00
16:30
+4:35
12M
3:08:3015:432.00 mi36:42
18:21
+1:51
Finish(13.11 mi)
3:28:2415:541.11 mi19:54
17:57
-0:24
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

11:55 /mi

Average Pace

15:54 /mi

Slowest Pace

18:31 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:21:46

39% of race

Time at Steady Pace

33:00

16% of race

Time at Slower Pace

1:33:38

45% of race

Average Pace: 15:54 /mi

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Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi3.3mi6.6mi9.8mi13.1mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF35-39Seg. OverallSeg. FemalesSeg. F35-39
2M2.00 mi2.00 mi3747170921337581726218
4M4.00 mi2.00 mi37471710-121337351705215
6M6.00 mi2.00 mi3761-141721-11215-237571719215
8M8.00 mi2.00 mi3760+11721216-137391710213
10M10.00 mi2.00 mi3752+81716+521637331708216
12M12.00 mi2.00 mi3760-81720-4217-137581726218
Finish13.11 mi1.11 mi3755+51718+221737481721217

Segment Performance Analysis

10M→12M

0.0 - 2.0 mi

Top 98%
×9story building
+138ft-68ft

Overall

3758

Females

1726

F35-39

218

2M→4M

2.0 - 4.0 mi

Top 97%
×13story building
+163ft-19ft

Overall

3735

Females

1705

F35-39

216

4M→6M

4.0 - 6.0 mi

Top 98%
×4story building
+55ft-83ft

Overall

3757

Females

1719

F35-39

216

6M→8M

6.0 - 8.0 mi

Top 97%
×10story building
+65ft-151ft

Overall

3739

Females

1710

F35-39

214

8M→10M

8.0 - 10.0 mi

Top 97%
×10story building
+61ft-174ft

Overall

3733

Females

1708

F35-39

216

10M→12M

10.0 - 12.0 mi

Top 98%
×3story building
+41ft-53ft

Overall

3758

Females

1726

F35-39

218

12M→Finish

12.0 - 13.1 mi

Top 98%
×1human
+6ft-6ft

Overall

3748

Females

1721

F35-39

217

Passing Analysis

Category:
Athletes Passed
39*
Passed By
47
Net Change
-8
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#3747
2M → 4M13130#3747#3747
4M → 6M216-14#3747#3761
6M → 8M5*4+1#3761#3760
8M → 10M9*1+8#3760#3752
10M → 12M210-8#3752#3760
12M → Finish8*3+5#3760#3755
TOTALS39*47-8

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

Passing Charts

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