Brittany Ong

Bib: 14681FAge: 31

Daly City, CA

0:00
0:00
/ mi
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Overall
#0 / 7100
Gender (Female)
#0 / 3107
Top 42%
Division (F30-34)
#0 / 691
Top 42%
Race Day Weather
56°/46°F
light rain

⏱️ Race Timeline

Course Elevation
10277 ft
×22story building
774 ft climb · 557 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
1.81M
9:46/mi
17:41
→ flat
5.34M
10:19/mi
54:07
8074
6.15M
10:45/mi
1:02:49
1262.8%
10.54M
10:50/mi
1:50:22
2303610.6%
11.05M
13:16/mi
1:57:08
1726.4%
Finish· 13.11 mi
11:21/mi
2:20:30
971140.2%

The Course

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Half Splits

1st Half· via 6.15MFaster
Distance6.15 mi
Time1:02:49
Pace10:13 /mi
2nd Half
Distance6.96 mi
Time1:17:41
Pace11:10 /mi
📊Positive Split: 23.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.81M
1.81 mi06:58:2717:419:4617:41
9:46
-
5.34M
5.34 mi07:34:5354:0710:0836:26
10:19
+0:33
6.15M
6.15 mi07:43:351:02:4910:138:42
10:45
+0:26
10.54M
10.54 mi08:31:081:50:2210:2847:33
10:50
+0:05
11.05M
11.05 mi08:37:541:57:0810:366:46
13:16
+2:26
Finish
13.11 mi09:01:162:20:3010:4323:22
11:21
-1:55

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

9:46 /mi

Average Pace

10:43 /mi

Slowest Pace

13:16 /mi

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Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

17:41

13% of race

Time at Steady Pace

1:56:03

83% of race

Time at Slower Pace

6:46

5% of race

Average Pace: 10:43 /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 mi06:58:2717:419:4617:41
9:46
#3443
5.34M
5.34 mi07:34:5354:0710:0836:26
10:19
#3760
6.15M
6.15 mi07:43:351:02:4910:138:42
10:45
#3738
10.54M
10.54 mi08:31:081:50:2210:2847:33
10:50
#3839
11.05M
11.05 mi08:37:541:57:0810:366:46
13:16
#3753
Finish
13.11 mi09:01:162:20:3010:4323:22
11:21
#3808
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
1.81M1.81 mi1.81 mi344311092493443(Top 48%)1109(Top 36%)249(Top 36%)
5.34M5.34 mi3.53 mi3760-3171261-152287-383949(Top 56%)1351(Top 43%)304(Top 44%)
6.15M6.15 mi0.81 mi3738+221257+4281+63762(Top 53%)1278(Top 41%)291(Top 42%)
10.54M10.54 mi4.39 mi3839-1011313-56292-114025(Top 57%)1410(Top 45%)323(Top 47%)
11.05M11.05 mi0.51 mi3753+861276+37286+62683(Top 38%)830(Top 27%)172(Top 25%)
Finish13.11 mi2.06 mi3808-551310-34292-64254(Top 60%)1612(Top 52%)363(Top 53%)

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 48%
~flat
+4ft-3ft

Overall

3443

Females

1109

F30-34

250

1.81M→5.34M

1.8 - 5.3 mi

Top 56%
×4story building
+80ft-74ft

Overall

3949

Females

1351

F30-34

305

5.34M→6.15M

5.3 - 6.2 mi

Top 53%
×10story building
+126ft-4ft

Overall

3762

Females

1278

F30-34

292

6.15M→10.54M

6.2 - 10.5 mi

Top 57%
×21story building
+230ft-361ft

Overall

4025

Females

1410

F30-34

324

10.54M→11.05M

10.5 - 11.1 mi

Top 38%
×14story building
+172ft-0ft

Overall

2683

Females

830

F30-34

172

11.05M→Finish

11.1 - 13.1 mi

Top 60%
×7story building
+97ft-114ft

Overall

4254

Females

1612

F30-34

363

Passing Analysis

Category:
Athletes Passed
501*
Passed By
866
Net Change
-365
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.81M----#3443
1.81M5.34M147*464-317#3443#3760
5.34M6.15M6745+22#3760#3738
6.15M10.54M131*232-101#3738#3839
10.54M11.05M10418+86#3839#3753
11.05MFinish52*107-55#3753#3808
TOTALS501*866-365

* 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

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Race Place Events