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SF MARATHON 1ST HALF 2026

Naixin Zhang

Santa Clara, CA

Bib: 16855 F 32

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
Division (F30-34)
#0 / 651
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
11:17/mi
22:35
→ flat
12 ft elev
4M
11:32/mi
45:39
↑ 67↓ 69
10 ft elev
6M
11:47/mi
1:09:14
↑ 1231.1%
126 ft elev
8M
11:34/mi
1:32:22
↑ 166↓ 531.1%
246 ft elev
9.6M
11:34/mi
1:50:53
↑ 68↓ 1931.5%
126 ft elev
10M
24:57/mi
2:00:51
↓ 241.1%
90 ft elev
10.5M
5:52/mi
2:03:47
↓ 732.7%
18 ft elev
12M
17:42/mi
2:30:20
↑ 2803.2%
272 ft elev
Finish· 13.11 mi
12:37/mi
2:44:20
↑ 14↓ 891.3%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

Half Splits

1st Half· via 6M
1:09:1411:32 /mi⚡ faster
2nd Half
1:35:0613:23 /mi+37.4%
Positive split — 37.4% 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
22:3511:172.00 mi22:35
11:17
-
4M
45:3911:252.00 mi23:04
11:32
+0:15
6M
1:09:1411:322.00 mi23:35
11:47
+0:15
8M
1:32:2211:332.00 mi23:08
11:34
-0:13
9.6M
1:50:5311:331.60 mi18:31
11:34
0:00
10M
2:00:5112:050.40 mi9:58
24:57
+13:23
10.5M
2:03:4711:470.50 mi2:56
5:52
-19:05
12M
2:30:2012:321.50 mi26:33
17:42
+11:50
Finish(13.11 mi)
2:44:2012:321.11 mi14:00
12:37
-5:05
Trend:
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoints & Pacing

Pace Line

Fastest Pace

5:52 /mi

Average Pace

12:32 /mi

Slowest Pace

24:57 /mi

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Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

2:56

2% of race

Time at Steady Pace

2:04:53

76% of race

Time at Slower Pace

36:31

22% of race

Average Pace: 12:32 /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
Featured Segment

Garmin Challenge

Top 83%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

12:54

Segment Time

14:20/mi

Pace

0.90 mi

Distance

Overall

5480

Women

2307

Division

533

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
2M2.00 mi5176205447052772209509
4M2.00 mi5049+1271975+79458+1249161909448
6M2.00 mi4958+911912+63449+948501846445
8M2.00 mi4699+2591756+156409+4041471473345
9.6M1.60 mi4928-2291900-144444-3555272342537
10M0.40 mi5012-841946-46460-1656052387545
10.5M0.50 mi5007+51942+4458+251342091480
12M1.50 mi5091-842010-68472-1452772209509
Finish(13.11 mi)1.11 mi5090+12018-8474-253432260515

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 80%
~flat
+5ft-3ft

Overall

5277

Females

2209

F30-34

511

2M→4M

2.0 - 4.0 mi

Top 75%
×4story building
+67ft-69ft

Overall

4916

Females

1909

F30-34

451

4M→6M

4.0 - 6.0 mi

Top 74%
×9story building
+123ft-9ft

Overall

4850

Females

1846

F30-34

448

6M→8M

6.0 - 8.0 mi

Top 63%
×12story building
+166ft-53ft

Overall

4147

Females

1473

F30-34

347

8M→9.6M

8.0 - 9.6 mi

Top 84%
×13story building
+68ft-193ft

Overall

5527

Females

2342

F30-34

539

9.6M→10M

9.6 - 10.0 mi

Top 85%
×2story building
+0ft-24ft

Overall

5605

Females

2387

F30-34

547

10M→10.5M

10.0 - 10.5 mi

Top 78%
×6story building
+1ft-73ft

Overall

5134

Females

2091

F30-34

482

10.5M→12M

10.5 - 12.0 mi

Top 80%
×21story building
+280ft-26ft

Overall

5277

Females

2209

F30-34

511

12M→Finish

12.0 - 13.1 mi

Top 81%
×7story building
+14ft-89ft

Overall

5343

Females

2260

F30-34

515

Passing Analysis

Category:
Passed
908*
Passed By
822
Net Change
+86
SegmentPassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#5176
2M → 4M234107+127#5176#5049
4M → 6M174*83+91#5049#4958
6M → 8M311*52+259#4958#4699
8M → 9.6M39268-229#4699#4928
9.6M → 10M19103-84#4928#5012
10M → 10.5M1712+5#5012#5007
10.5M → 12M63*147-84#5007#5091
12M → Finish51*50+1#5091#5090
TOTALS908*822+86

* 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

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