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SF MARATHON 1ST HALF 2023

Irene Choi

Bib: 14728•F•Age: 24

Los Angeles, CA

0:00
0:00
/ mi
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Overall
#0 / 6072
Top 47%
Gender (Female)
#0 / 2732
Top 36%
F20-29
#0 / 376
Top 48%
Race Day Weather
60°/50°F
overcast 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
1.40M
10:19/mi
14:27
→ flat
2.13M
20:26/mi
29:22
→ flat
6.43M
12:04/mi
1:21:14
↑ 274↓ 780.9%
6.62M
-37:-17/mi
1:14:20
↑ 161.6%
10.65M
9:41/mi
1:53:21
↑ 153↓ 3611.0%
Finish· 13.11 mi
8:45/mi
2:14:52
↑ 244↓ 1141.0%

The Course

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Half Splits

1st Half· via 6.62M
Distance6.62 mi
Time1:14:20
Pace11:14 /mi
2nd Half✓ Faster
Distance6.49 mi
Time1:00:32
Pace9:20 /mi
📊Negative Split: 18.6% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
1.40M
1.40 mi06:59:5414:2710:1914:27
10:19
-
2.13M
2.13 mi07:14:4929:2213:4714:55
20:26
+10:07
6.43M
6.43 mi08:06:411:21:1412:3851:52
12:04
-8:22
6.62M
6.62 mi07:59:471:14:2011:14
-37:-17
-49:21
10.65M
10.65 mi08:38:481:53:2110:3939:01
9:41
+46:58
Finish
13.11 mi09:00:192:14:5210:1721:31
8:45
-0:56

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

-38:-17 /mi

Average Pace

10:17 /mi

Slowest Pace

20:26 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:52

100% of race

Time at Steady Pace

0:00

0% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:17 /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
1.40M
1.40 mi06:59:5414:2710:1914:27
10:19
#4458
2.13M
2.13 mi07:14:4929:2213:4714:55
20:26
#4186
6.43M
6.43 mi08:06:411:21:1412:3851:52
12:04
#3461
6.62M
6.62 mi07:59:471:14:2011:14
-37:-17
#3489
10.65M
10.65 mi08:38:481:53:2110:3939:01
9:41
#3131
Finish
13.11 mi09:00:192:14:5210:1721:31
8:45
#2836
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF20-29Seg. OverallSeg. FemalesSeg. F20-29
1.40M1.40 mi1.40 mi445817802924458(Top 73%)1780(Top 65%)292(Top 78%)
2.13M2.13 mi0.73 mi4186+2721629+151281+114090(Top 67%)1594(Top 58%)273(Top 73%)
6.43M6.43 mi4.30 mi3461+7251280+349223+583200(Top 53%)1157(Top 42%)203(Top 54%)
6.62M6.62 mi0.19 mi3489-281300-20222+1---
10.65M10.65 mi4.03 mi3131+3581114+186200+222566(Top 42%)872(Top 32%)168(Top 45%)
Finish13.11 mi2.46 mi2836+295984+130181+191838(Top 30%)563(Top 21%)113(Top 30%)

Segment Performance Analysis

Start → 1.40M

0.0 - 1.4 mi

Top 73%
~flat
+3ft-2ft

Overall

4458

Females

1780

F20-24

292

1.40M→2.13M

1.4 - 2.1 mi

Top 67%
~flat
+3ft-1ft

Overall

4090

Females

1594

F20-24

273

2.13M→6.43M

2.1 - 6.4 mi

Top 53%
×17story building
+274ft-78ft

Overall

3200

Females

1157

F20-24

203

6.43M→6.62M

6.4 - 6.6 mi

×1story
+16ft-0ft

Overall

-

Females

-

F20-24

-

6.62M→10.65M

6.6 - 10.7 mi

Top 42%
×21story building
+153ft-361ft

Overall

2566

Females

872

F20-24

168

10.65M→Finish

10.7 - 13.1 mi

Top 30%
×17story building
+244ft-114ft

Overall

1838

Females

563

F20-24

113

Passing Analysis

Category:
Athletes Passed
1884*
Passed By
262
Net Change
+1622
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 1.40M----#4458
1.40M → 2.13M34775+272#4458#4186
2.13M → 6.43M801*76+725#4186#3461
6.43M → 6.62M4775-28#3461#3489
6.62M → 10.65M386*28+358#3489#3131
10.65M → Finish303*8+295#3131#2836
TOTALS1884*262+1622

* 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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The San Francisco Marathon

The San Francisco Marathon

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