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SF MARATHON 1ST HALF 2026

Mengjie Kong

Bib: 19736•F•Age: 32

stanford, CA

0:00
0:00
/ mi
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Overall
#0 / 6575
Gender (Female)
#0 / 2930
Top 48%
Division (F30-34)
#0 / 651
Top 50%
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
11:01/mi
22:03
→ flat
4M
11:26/mi
44:54
↑ 67↓ 69
6M
11:43/mi
1:08:20
↑ 1231.1%
8M
12:34/mi
1:33:28
↑ 166↓ 531.1%
9.6M
8:51/mi
1:47:38
↑ 68↓ 1931.5%
10M
19:44/mi
1:55:31
↓ 241.1%
10.5M
5:16/mi
1:58:09
↓ 732.7%
12M
14:13/mi
2:19:29
↑ 2803.2%
Finish· 13.11 mi
10:15/mi
2:30:51
↑ 14↓ 891.3%

The Course

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Half Splits

1st Half· via 6MFaster
Distance6.00 mi
Time1:08:20
Pace11:23 /mi
2nd Half
Distance7.11 mi
Time1:22:31
Pace11:36 /mi
📊Positive Split: 20.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
2M
2.00 mi07:02:1122:0311:0122:03
11:01
-
4M
4.00 mi07:25:0244:5411:1422:51
11:26
+0:25
6M
6.00 mi07:48:281:08:2011:2323:26
11:43
+0:17
8M
8.00 mi08:13:361:33:2811:4125:08
12:34
+0:51
9.6M
9.60 mi08:27:461:47:3811:1314:10
8:51
-3:43
10M
10.00 mi08:35:391:55:3111:337:53
19:44
+10:53
10.5M
10.50 mi08:38:171:58:0911:152:38
5:16
-14:28
12M
12.00 mi08:59:372:19:2911:3721:20
14:13
+8:57
Finish
13.11 mi09:10:592:30:5111:3011:22
10:15
-3:58

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

5:16 /mi

Average Pace

11:30 /mi

Slowest Pace

19:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

16:48

11% of race

Time at Steady Pace

1:44:50

69% of race

Time at Slower Pace

29:13

19% of race

Average Pace: 11:30 /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 mi07:02:1122:0311:0122:03
11:01
#4734
4M
4.00 mi07:25:0244:5411:1422:51
11:26
#4771
6M
6.00 mi07:48:281:08:2011:2323:26
11:43
#4750
8M
8.00 mi08:13:361:33:2811:4125:08
12:34
#4877
9.6M
9.60 mi08:27:461:47:3811:1314:10
8:51
#4461
10M
10.00 mi08:35:391:55:3111:337:53
19:44
#4324
10.5M
10.50 mi08:38:171:58:0911:152:38
5:16
#4310
12M
12.00 mi08:59:372:19:2911:3721:20
14:13
#4006
Finish
13.11 mi09:10:592:30:5111:3011:22
10:15
#3926
Faster pace
Steady pace
Slower pace
Featured Segment

Garmin Challenge

Top 51%
Garmin Challenge
Course map with the garmin challenge highlighted
Garmin Challenge · 9.6–10.5 mi · © Mapbox © OpenStreetMap

10:31

Segment Time

11:41/mi

Pace

0.90 mi

Distance

Overall

3340

Women

1146

Division

261

See the full Garmin Challenge leaderboard

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
2M2.00 mi2.00 mi473417824172930(Top 45%)981(Top 33%)219(Top 34%)
4M4.00 mi2.00 mi4771-371806-24418-14751(Top 72%)1822(Top 62%)430(Top 66%)
6M6.00 mi2.00 mi4750+211797+9421-34761(Top 72%)1800(Top 61%)430(Top 66%)
8M8.00 mi2.00 mi4877-1271862-65431-105086(Top 77%)1970(Top 67%)456(Top 70%)
9.6M9.60 mi1.60 mi4461+4161651+211389+422548(Top 39%)901(Top 31%)200(Top 31%)
10M10.00 mi0.40 mi4324+1371593+58378+113344(Top 51%)1158(Top 40%)262(Top 40%)
10.5M10.50 mi0.50 mi4310+141586+7374+43828(Top 58%)1363(Top 47%)300(Top 46%)
12M12.00 mi1.50 mi4006+3041440+146337+372930(Top 45%)981(Top 33%)219(Top 34%)
Finish13.11 mi1.11 mi3926+801406+34325+123190(Top 49%)1106(Top 38%)248(Top 38%)

Segment Performance Analysis

10.5M→12M

0.0 - 2.0 mi

Top 45%
~flat
+5ft-3ft

Overall

2930

Females

981

F30-34

220

2M→4M

2.0 - 4.0 mi

Top 72%
×4story building
+67ft-69ft

Overall

4751

Females

1822

F30-34

433

4M→6M

4.0 - 6.0 mi

Top 72%
×9story building
+123ft-9ft

Overall

4761

Females

1800

F30-34

433

6M→8M

6.0 - 8.0 mi

Top 77%
×12story building
+166ft-53ft

Overall

5086

Females

1970

F30-34

458

8M→9.6M

8.0 - 9.6 mi

Top 39%
×13story building
+68ft-193ft

Overall

2548

Females

901

F30-34

201

9.6M→10M

9.6 - 10.0 mi

Top 51%
×2story building
+0ft-24ft

Overall

3344

Females

1158

F30-34

264

10M→10.5M

10.0 - 10.5 mi

Top 58%
×6story building
+1ft-73ft

Overall

3828

Females

1363

F30-34

302

10.5M→12M

10.5 - 12.0 mi

Top 45%
×21story building
+280ft-26ft

Overall

2930

Females

981

F30-34

220

12M→Finish

12.0 - 13.1 mi

Top 49%
×7story building
+14ft-89ft

Overall

3190

Females

1106

F30-34

248

Passing Analysis

Category:
Athletes Passed
1403*
Passed By
595
Net Change
+808
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 2M----#4734
2M → 4M164201-37#4734#4771
4M → 6M146*125+21#4771#4750
6M → 8M91*218-127#4750#4877
8M → 9.6M42610+416#4877#4461
9.6M → 10M1447+137#4461#4324
10M → 10.5M217+14#4324#4310
10.5M → 12M317*13+304#4310#4006
12M → Finish94*14+80#4006#3926
TOTALS1403*595+808

* 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