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SF MARATHON 1ST HALF 2026

Samantha Yi

Bib: 18022•F•Age: 32

Oakland, CA

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

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
11:52/mi
23:44
→ flat
4M
11:50/mi
47:24
↑ 67↓ 69
6M
12:03/mi
1:11:30
↑ 1231.1%
8M
11:41/mi
1:34:53
↑ 166↓ 531.1%
9.6M
11:41/mi
1:53:35
↑ 68↓ 1931.5%
10M
20:41/mi
2:01:51
↓ 241.1%
10.5M
5:30/mi
2:04:36
↓ 732.7%
12M
17:30/mi
2:30:51
↑ 2803.2%
Finish· 13.11 mi
11:02/mi
2:43:05
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:11:30
Pace11:55 /mi
2nd Half
Distance7.11 mi
Time1:31:35
Pace12:53 /mi
📊Positive Split: 28.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:14:1023:4411:5223:44
11:52
-
4M
4.00 mi07:37:5047:2411:5123:40
11:50
-0:02
6M
6.00 mi08:01:561:11:3011:5524:06
12:03
+0:13
8M
8.00 mi08:25:191:34:5311:5223:23
11:41
-0:22
9.6M
9.60 mi08:44:011:53:3511:5018:42
11:41
0:00
10M
10.00 mi08:52:172:01:5112:118:16
20:41
+9:00
10.5M
10.50 mi08:55:022:04:3611:522:45
5:30
-15:11
12M
12.00 mi09:21:172:30:5112:3426:15
17:30
+12:00
Finish
13.11 mi09:33:312:43:0512:2612:14
11:02
-6:28

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

5:30 /mi

Average Pace

12:26 /mi

Slowest Pace

20:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:45

2% of race

Time at Steady Pace

2:05:49

77% of race

Time at Slower Pace

34:31

21% of race

Average Pace: 12:26 /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 mi07:14:1023:4411:5223:44
11:52
#5776
4M
4.00 mi07:37:5047:2411:5123:40
11:50
#5531
6M
6.00 mi08:01:561:11:3011:5524:06
12:03
#5374
8M
8.00 mi08:25:191:34:5311:5223:23
11:41
#5064
9.6M
9.60 mi08:44:011:53:3511:5018:42
11:41
#5242
10M
10.00 mi08:52:172:01:5112:118:16
20:41
#5122
10.5M
10.50 mi08:55:022:04:3611:522:45
5:30
#5093
12M
12.00 mi09:21:172:30:5112:3426:15
17:30
#5136
Finish
13.11 mi09:33:312:43:0512:2612:14
11:02
#4989
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior
Featured Segment

Garmin Challenge

Top 60%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

11:01

Segment Time

12:15/mi

Pace

0.90 mi

Distance

Overall

3913

Women

1428

Division

329

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
2M2.00 mi2.00 mi577624075465150(Top 78%)2142(Top 73%)490(Top 75%)
4M4.00 mi2.00 mi5531+2452261+146521+255273(Top 80%)2109(Top 72%)488(Top 75%)
6M6.00 mi2.00 mi5374+1572149+112499+225127(Top 78%)2010(Top 69%)478(Top 73%)
8M8.00 mi2.00 mi5064+3101957+192458+414258(Top 65%)1524(Top 52%)363(Top 56%)
9.6M9.60 mi1.60 mi5242-1782073-116491-335616(Top 85%)2389(Top 82%)553(Top 85%)
10M10.00 mi0.40 mi5122+1202006+67474+173871(Top 59%)1416(Top 48%)319(Top 49%)
10.5M10.50 mi0.50 mi5093+291992+14468+64426(Top 67%)1687(Top 58%)381(Top 59%)
12M12.00 mi1.50 mi5136-432037-45479-115150(Top 78%)2142(Top 73%)490(Top 75%)
Finish13.11 mi1.11 mi4989+1471964+73461+184057(Top 62%)1532(Top 52%)356(Top 55%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 78%
~flat
+5ft-3ft

Overall

5150

Females

2142

F30-34

492

2M→4M

2.0 - 4.0 mi

Top 80%
×4story building
+67ft-69ft

Overall

5273

Females

2109

F30-34

491

4M→6M

4.0 - 6.0 mi

Top 78%
×9story building
+123ft-9ft

Overall

5127

Females

2010

F30-34

481

6M→8M

6.0 - 8.0 mi

Top 65%
×12story building
+166ft-53ft

Overall

4258

Females

1524

F30-34

365

8M→9.6M

8.0 - 9.6 mi

Top 85%
×13story building
+68ft-193ft

Overall

5616

Females

2389

F30-34

555

9.6M→10M

9.6 - 10.0 mi

Top 59%
×2story building
+0ft-24ft

Overall

3871

Females

1416

F30-34

321

10M→10.5M

10.0 - 10.5 mi

Top 67%
×6story building
+1ft-73ft

Overall

4426

Females

1687

F30-34

383

10.5M→12M

10.5 - 12.0 mi

Top 78%
×21story building
+280ft-26ft

Overall

5150

Females

2142

F30-34

492

12M→Finish

12.0 - 13.1 mi

Top 62%
×7story building
+14ft-89ft

Overall

4057

Females

1532

F30-34

356

Passing Analysis

Category:
Athletes Passed
1243*
Passed By
456
Net Change
+787
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#5776
2M → 4M291*46+245#5776#5531
4M → 6M198*41+157#5531#5374
6M → 8M329*19+310#5374#5064
8M → 9.6M40218-178#5064#5242
9.6M → 10M1299+120#5242#5122
10M → 10.5M290+29#5122#5093
10.5M → 12M78*121-43#5093#5136
12M → Finish149*2+147#5136#4989
TOTALS1243*456+787

* 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