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SF MARATHON 1ST HALF 2025

Sonia Nguyen

San Francisco, CA

Bib: 13470 F 26

0:00
0:00
/ mi
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Overall
#0 / 7100
Gender (Female)
#0 / 3107
Division (F25-29)
#0 / 761
Race Day Weather
56°/46°F
light rain

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
10 ft elev
1.81M
28:18/mi
51:14
→ flat
12 ft elev
5.34M
12:17/mi
1:34:37
↑ 80↓ 74
19 ft elev
6.15M
13:55/mi
1:45:53
↑ 1262.8%
149 ft elev
10.54M
13:27/mi
2:44:57
↑ 230↓ 3610.6%
20 ft elev
11.05M
19:22/mi
2:54:50
↑ 1726.4%
213 ft elev
Finish· 13.11 mi
13:43/mi
3:23:04
↑ 97↓ 1140.2%
205 ft elev
Course Elevation
10–277 ft
≈
×22story building
•▲ 774 ft climb · ▼ 557 ft descent

The Course

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Half Splits

1st Half· via 6.15M
Distance6.15 mi
Time1:45:53
Pace17:13 /mi
2nd Half✓ Faster
Distance6.96 mi
Time1:37:11
Pace13:58 /mi
📊Negative Split: 8.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.81M
1.81 mi07:21:1351:1428:1851:14
28:18
-
5.34M
5.34 mi08:04:361:34:3717:4343:23
12:17
-16:01
6.15M
6.15 mi08:15:521:45:5317:1311:16
13:55
+1:38
10.54M
10.54 mi09:14:562:44:5715:3959:04
13:27
-0:28
11.05M
11.05 mi09:24:492:54:5015:499:53
19:22
+5:55
Finish
13.11 mi09:53:033:23:0415:2928:14
13:43
-5:39

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

12:17 /mi

Average Pace

15:29 /mi

Slowest Pace

28:18 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:21:57

70% of race

Time at Slower Pace

1:01:07

30% of race

Average Pace: 15:29 /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
1.81M
1.81 mi07:21:1351:1428:1851:14
28:18
#7108
5.34M
5.34 mi08:04:361:34:3717:4343:23
12:17
#7105
6.15M
6.15 mi08:15:521:45:5317:1311:16
13:55
#7103
10.54M
10.54 mi09:14:562:44:5715:3959:04
13:27
#7049
11.05M
11.05 mi09:24:492:54:5015:499:53
19:22
#7043
Finish
13.11 mi09:53:033:23:0415:2928:14
13:43
#6976
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF25-29Seg. OverallSeg. FemalesSeg. F25-29
1.81M1.81 mi1.81 mi7108311475671083114756
5.34M5.34 mi3.53 mi7105+33111+3758-262782610682
6.15M6.15 mi0.81 mi7103+23109+275865152746706
10.54M10.54 mi4.39 mi7049+543079+3075864072713703
11.05M11.05 mi0.51 mi7043+63077+275864442724703
Finish13.11 mi2.06 mi6976+673039+38755+361012605687

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 100%
~flat
+4ft-3ft

Overall

7108

Females

3114

F25-29

758

1.81M→5.34M

1.8 - 5.3 mi

Top 88%
×4story building
+80ft-74ft

Overall

6278

Females

2610

F25-29

683

5.34M→6.15M

5.3 - 6.2 mi

Top 92%
×10story building
+126ft-4ft

Overall

6515

Females

2746

F25-29

707

6.15M→10.54M

6.2 - 10.5 mi

Top 90%
×21story building
+230ft-361ft

Overall

6407

Females

2713

F25-29

704

10.54M→11.05M

10.5 - 11.1 mi

Top 91%
×14story building
+172ft-0ft

Overall

6444

Females

2724

F25-29

704

11.05M→Finish

11.1 - 13.1 mi

Top 86%
×7story building
+97ft-114ft

Overall

6101

Females

2605

F25-29

687

Passing Analysis

Category:
Athletes Passed
146*
Passed By
14
Net Change
+132
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.81M----#7108
1.81M → 5.34M9*6+3#7108#7105
5.34M → 6.15M2*0+2#7105#7103
6.15M → 10.54M59*5+54#7103#7049
10.54M → 11.05M71+6#7049#7043
11.05M → Finish69*2+67#7043#6976
TOTALS146*14+132

* 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

Race Place Events

Race Place Events