Jiwon Choi

Bib: 12440FAge: 40

San Ramon, CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 7100
Gender (Female)
#0 / 3107
Masters (Masters Women)
#0 / 776
Top 38%
Division (F40-44)
#0 / 244
Top 41%
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
9:25/mi
17:02
→ flat
5.34M
10:10/mi
52:55
8074
6.15M
12:30/mi
1:03:02
1262.8%
10.54M
11:23/mi
1:53:00
2303610.6%
11.05M
18:47/mi
2:02:35
1726.4%
Finish· 13.11 mi
11:23/mi
2:26:01
971140.2%

The Course

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Half Splits

1st Half· via 6.15MFaster
Distance6.15 mi
Time1:03:02
Pace10:15 /mi
2nd Half
Distance6.96 mi
Time1:22:59
Pace11:55 /mi
📊Positive Split: 31.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.81M
1.81 mi06:52:3317:029:2517:02
9:25
-
5.34M
5.34 mi07:28:2652:559:5535:53
10:10
+0:45
6.15M
6.15 mi07:38:331:03:0210:1510:07
12:30
+2:20
10.54M
10.54 mi08:28:311:53:0010:4349:58
11:23
-1:07
11.05M
11.05 mi08:38:062:02:3511:069:35
18:47
+7:24
Finish
13.11 mi09:01:322:26:0111:0823:26
11:23
-7:24

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

9:25 /mi

Average Pace

11:08 /mi

Slowest Pace

18:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

17:02

12% of race

Time at Steady Pace

1:59:24

82% of race

Time at Slower Pace

9:35

7% of race

Average Pace: 11:08 /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
1.81M
1.81 mi06:52:3317:029:2517:02
9:25
#2714
5.34M
5.34 mi07:28:2652:559:5535:53
10:10
#3386
6.15M
6.15 mi07:38:331:03:0210:1510:07
12:30
#3798
10.54M
10.54 mi08:28:311:53:0010:4349:58
11:23
#4214
11.05M
11.05 mi08:38:062:02:3511:069:35
18:47
#4464
Finish
13.11 mi09:01:322:26:0111:0823:26
11:23
#4411
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
1.81M1.81 mi1.81 mi2714784532714(Top 38%)784(Top 25%)53(Top 22%)
5.34M5.34 mi3.53 mi3386-6721092-30869-163694(Top 52%)1228(Top 40%)76(Top 31%)
6.15M6.15 mi0.81 mi3798-4121281-18980-115628(Top 79%)2231(Top 72%)147(Top 60%)
10.54M10.54 mi4.39 mi4214-4161493-21291-114736(Top 67%)1790(Top 58%)120(Top 49%)
11.05M11.05 mi0.51 mi4464-2501618-125100-96180(Top 87%)2578(Top 83%)185(Top 76%)
Finish13.11 mi2.06 mi4411+531613+5101-14291(Top 60%)1630(Top 52%)105(Top 43%)

Segment Performance Analysis

Start → 1.81M

0.0 - 1.8 mi

Top 38%
~flat
+4ft-3ft

Overall

2714

Females

784

F40-44

53

1.81M→5.34M

1.8 - 5.3 mi

Top 52%
×4story building
+80ft-74ft

Overall

3694

Females

1228

F40-44

76

5.34M→6.15M

5.3 - 6.2 mi

Top 79%
×10story building
+126ft-4ft

Overall

5628

Females

2231

F40-44

147

6.15M→10.54M

6.2 - 10.5 mi

Top 67%
×21story building
+230ft-361ft

Overall

4736

Females

1790

F40-44

120

10.54M→11.05M

10.5 - 11.1 mi

Top 87%
×14story building
+172ft-0ft

Overall

6180

Females

2578

F40-44

185

11.05M→Finish

11.1 - 13.1 mi

Top 60%
×7story building
+97ft-114ft

Overall

4291

Females

1630

F40-44

105

Passing Analysis

Category:
Athletes Passed
234*
Passed By
1931
Net Change
-1697
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.81M----#2714
1.81M5.34M58*730-672#2714#3386
5.34M6.15M4416-412#3386#3798
6.15M10.54M64*480-416#3798#4214
10.54M11.05M4254-250#4214#4464
11.05MFinish104*51+53#4464#4411
TOTALS234*1931-1697

* 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